2008 Dodge RAM Owners Manual

4WD LOCK 4-Wheel Drive Lock Range - Locks the front and rear driveshafts together. Forces the front and rear wheels to rotate at the same speed. Additional traction for loose, slippery road surfaces only. 4WD LOW 4-Wheel Drive Low Range - Low speed 4-wheel drive. Locks the front and rear driveshafts together. Forces the front and rear wheels to rotate at the same speed. Additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h). Neutral - Disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle. See Recreational Towing for more infor- mation.

Shifting Procedure — Electronically Shifted Transfer Case

Transfer Case Switch

If any of the requirements to select a new NOTE: transfer case position have not been met, the transfer case will not shift. The indicator light for the previous position will remain ON and the newly selected position indicator

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light will continue to flash until all the requirements for the selected position have been met. To retry a shift: return the control knob back to the original position, make certain all shift requirements have been met, wait five seconds and try the shift again. If all the requirements to select a new transfer NOTE: case position have been met, the current position indica- tor light will turn OFF, the selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. 2WD, 4WD LOCK Rotate the 4WD control switch to the desired position. Shifts between 2WD and 4WD LOCK can be done with the vehicle stopped or in motion. With the vehicle in motion, the transfer case will engage/disengage faster if you momentarily release the accelerator pedal after turn- ing the control switch. If the vehicle is stopped, the

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ignition key must be in the ON position with the engine either running or off. This shift cannot be completed if the key is in the ACC position. NOTE: The 4x4 system will not allow shifts between 2WD/4WD LOCK if the front and/or rear wheels are spinning (no traction). In this situation the selected position indicator light will flash and the original posi- tion indicator light will remain ON. At this time, reduce speed and stop spinning the wheels to complete the shift. 2WD or 4WD LOCK, 4WD LOW NOTE: When shifting into or out of 4WD LOW some gear noise may be heard. This noise is normal and is not detrimental to the vehicle or occupants.

Shifting can be performed with the vehicle rolling 2 to 3
mph (3 to 5 km/h) or completely stopped. USE EITHER OF THE FOLLOWING PROCEDURES: Preferred Procedure 1. With engine running, slow vehicle to 2 to 3 mph (3 to 5 km/h). 2. Shift the transmission into NEUTRAL (depress clutch on manual transmissions). 3. While still rolling, rotate the transfer case control switch to the desired position. 4. After the desired position indicator light is ON (not flashing), shift transmission back into gear (release clutch on manual transmissions).

Alternate Procedure 1. Bring the vehicle to complete stop. 2. With the key ON and the engine either OFF or running, shift the transmission into NEUTRAL (depress clutch on manual transmissions). 3. Rotate the transfer case control switch to the desired position. 4. After the desired position indicator light is ON (not flashing), shift transmission back into gear (release clutch on manual transmissions). If steps 1 or 2 of either the Preferred or Alternate NOTE: Procedure are not satisfied prior to attempting the shift then the desired position indicator light will flash con- tinuously while the original position indicator light is ON, until all requirements have been met.

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NOTE: The ignition key must be ON for a shift to take place and for the position indicator lights to be operable. If the key is not ON then the shift will not take place and no position indicator lights will be on or flashing. NOTE: than 21 days, refer to the section on “Vehicle Storage.”

If your are leaving your vehicle stored for longer

LIMITED-SLIP DIFFERENTIAL – IF EQUIPPED The limited-slip differential provides additional traction on snow, ice, mud, sand and gravel, particularly when there is a difference between the traction characteristics of the surface under the right and left rear wheels. During normal driving and cornering, the limited-slip unit per- forms similarly to a conventional differential. On slip- pery surfaces, however, the differential delivers more of the driving effort to the rear wheel having the better traction. The limited-slip differential is especially helpful during slippery driving conditions. With both rear wheels on a

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slippery surface, a slight application of the accelerator will supply maximum traction. When starting with only one rear wheel on an excessively slippery surface, slight momentary application of the parking brake may be necessary to gain maximum traction.

WARNING!

On vehicles equipped with a limited-slip differen- tial, never run the engine with one rear wheel off the ground, since the vehicle may drive through the rear wheel remaining on the ground. You could lose control of the vehicle.

Care should be taken to avoid sudden accelerations when both rear wheels are on a slippery surface. This could cause both rear wheels to spin, and allow the vehicle to slide sideways on the crowned surface of a road or in a turn.

DRIVING ON SLIPPERY SURFACES When driving on wet or slushy roads, it is possible for a wedge of water to build up between the tire and road surface. This is known as hydroplaning and may cause partial or complete loss of vehicle control and stopping ability. To reduce this possibility, the following precau- tions should be observed: 1. Slow down during rainstorms or when roads are slushy. 2. Slow down if road has standing water or puddles. 3. Replace tires when tread wear indicators first become visible. 4. Keep tires properly inflated. 5. Maintain sufficient distance between your vehicle and the car in front to avoid a collision in a sudden stop.

DRIVING THROUGH WATER Driving through water more than a few inches/ centimeters deep will require extra caution to ensure safety and prevent damage to your vehicle. Flowing/Rising Water

WARNING!

Do not drive on, or cross, a road or a path where water is flowing and/or rising (as in storm run-off). Flowing water can wear away the road or path’s surface and cause your vehicle to sink into deeper water. Furthermore, flowing and/or rising water can carry your vehicle away swiftly. Failure to follow this warning may result in injuries that are serious or fatal to you, your passengers, and others around you.

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Shallow Standing Water Although your vehicle is capable of driving through shallow standing water, consider the following Caution and Warning before doing so.

CAUTION!

† Always check the depth of the standing water before driving through it. Never drive through standing water that is deeper than the bottom of the tire rims mounted on the vehicle. † Determine the condition of the road or the path that is under water, and if there are any obstacles in the way, before driving through the standing water. † Do not exceed 5 mph (8 km/h) when driving through standing water. This will minimize wave effects.

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CAUTION!

† Driving through standing water may cause dam- age to your vehicle’s drivetrain components. Al- ways inspect your vehicle’s fluids (i.e., engine oil, transmission, axle, etc.) for signs of contamination (i.e., fluid that is milky or foamy in appearance) after driving through standing water. Do not con- tinue to operate the vehicle if any fluid appears contaminated, as this may result in further dam- age. Such damage is not covered by the New Vehicle Limited Warranty. † Getting water inside your vehicle’s engine can cause it to lock up and stall out, and cause serious internal damage to the engine. Such damage is not covered by the New Vehicle Limited Warranty.

WARNING!

† Driving through standing water limits your vehi- cle’s traction capabilities. Do not exceed 5 mph (8
km/h) when driving through standing water. † Driving through standing water limits your vehi- cle’s braking capabilities, which increases stop- ping distances. Therefore, after driving through standing water, drive slowly and lightly press on the brake pedal several times to dry the brakes. † Getting water inside your vehicle’s engine can cause it to lock up and stall out, and leave you stranded. † Failure to follow these warnings may result in injuries that are serious or fatal to you, your passengers, and others around you.

DRIVING OFF-ROAD Care should be taken when attempting to climb steep hills or driving diagonally across a hill or slope. If natural obstacles force you to travel diagonally up or down a hill, choose a mild angle and keep as little side tilt as possible. Keep the vehicle moving and make turns slowly and cautiously. If you must back down a hill, back straight down using REVERSE gear. Never back down in NEUTRAL, or diagonally across the hill. When driving over sand, mud, and other soft terrain, shift to low gear and drive steadily. Apply the accelerator slowly to avoid spinning the wheels. DO NOT REDUCE the tire pressures for this type of driving.

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NOTE: After off-road usage, particularly in sand or mud, inspect the underside of the vehicle for accumu- lated dirt at the propeller shaft, axles, U-joints, brake rotors and calipers. Use a hose to clean off any accumulation of dirt or mud. Check the exhaust system and all exposed components for any sign of damage. If you experience unusual vibration after driving in mud, slush or similar conditions, check the wheels for im- pacted material. Impacted foreign material can cause a wheel imbalance. Removing the foreign material from the wheels will correct the situation.

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PARKING BRAKE The foot-operated parking brake is positioned below the lower left corner of the instrument panel. To release the parking brake, pull the parking brake release handle. NOTE: The instrument cluster red brake warning light will come on and flash to indicate that the parking brake is applied. You must be sure that the parking brake is fully applied before leaving the vehicle.

Parking Brake Release

Be sure the parking brake is firmly set when parked and the shift lever is in the PARK position. When parking on a hill you should apply the parking brake before placing the shift lever in PARK, otherwise the load on the transmission locking mechanism may make it difficult to move the shift lever out of PARK.

WARNING!

† Always fully apply the parking brake when leaving your vehicle, or it may roll and cause damage or injury. Also be certain to leave an automatic trans- mission in PARK, a manual transmission in RE- VERSE or FIRST gear. Failure to do so may allow the vehicle to roll and cause damage or injury. † Never leave children alone in a vehicle. Leaving unattended children in a vehicle is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Don’t leave the key in the ignition. A child could operate power win- dows, other controls, or move the vehicle. † Be sure the parking brake is fully disengaged before driving, failure to do so can lead to brake problems due to excessive heating of the rear brakes.

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When parking on a hill, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade. The parking brake should always be applied whenever the driver is not in the vehicle.

BRAKE SYSTEM If power assist is lost for any reason (for example, repeated brake applications with the engine off), the brakes will still function. However, you will experience a substantial increase in braking effort to stop the vehicle. If either the front or rear hydraulic system loses normal braking capability, the remaining system will still func- tion with some loss of overall braking effectiveness. This will be evident by increased pedal travel during applica- tion, greater pedal force required to slow or stop, and activation of the BRAKE warning lamp and the ABS lamp (if equipped) during brake use.

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3500 Dual Rear Wheel Models Only The brake system power assist is provided by a hydro- boost unit which shares fluid with the power steering system. You may experience some clicking or hissing noises from the hydro-boost system during hard braking conditions. NOTE: Under cold temperatures, pedal effort will be higher than normal until the power steering fluid reaches operating temperature. Brake Noise During normal operation of the brake system certain noises may be present from time to time. Occasional 9groan9 or 9squeal9 noises may occur during normal operation of the brake system which may not be indica- tive of a problem. These noises may be heard at any time the brakes are applied but may be more noticeable during the first few brake applications in the morning. Moisture, hot or cold temperature, dust, and or other debris may

also contribute to the noise condition. Repeated or con- tinuous noises during braking may be an indication that the brake linings are worn and in need of replacement. Rear Wheel Anti-Lock (RWAL) Brake System — If Equipped The Rear-Wheel Anti-Lock Brake System provides in- creased vehicle stability and brake performance under most braking conditions. The system automatically con- trols the operation of the rear brakes to prevent rear wheel lockup. The system remains operational in the four-wheel drive mode. The level of performance is reduced when the front brakes are locked up. This may cause the rear brakes to lock up through the drivetrain, which may reduce the effectiveness of the Anti-Lock Brake System. During severe braking conditions, particularly with changing road surfaces, such as ice to concrete, a slight drop or minor pulsation may be felt in the brake pedal.

WARNING!

Both Rear-Wheel and Four-Wheel Anti-Lock Brake Systems contain sophisticated electronic equipment. It may be susceptible to interference caused by improperly installed or high output radio transmit- ting equipment. This interference can cause possible loss of anti-lock braking capability. Installation of such equipment should be performed by qualified professionals.

Four-Wheel Anti-Lock Brake System — If Equipped This Four-Wheel Anti-lock Brake System (ABS) is de- signed to aid the driver in maintaining vehicle control under adverse braking conditions. The system operates

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with a separate computer to modulate hydraulic pressure to prevent wheel lockup and help avoid skidding on slippery surfaces. The system’s pump motor runs during an ABS stop to provide regulated hydraulic pressure. The pump motor makes a low humming noise during operation. This is normal. The ABS conducts a low-speed selftest at about 10 mph (16 km/h). If you have your foot lightly on the brake while this test is occurring, you may feel slight pedal movement. The movement can be more apparent on ice and snow. This is normal. The ABS pump motor runs during the self-test at 10 mph (16 km/h) and during an ABS stop. The pump motor makes a low humming noise during operation. This is normal.

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When you are in a severe braking condition involving use of the ABS, you will experience some pedal drop as the vehicle comes to a complete stop. This is the result of the system reverting to the base brake system and is normal. Engagement of the ABS may be accompanied by a pulsing sensation. You may also hear a clicking noise. These occurrences are normal, and indicate that the system is functioning. ABS Warning Light The ABS includes an amber warning light. When the light is illuminated, the ABS is not functioning. The system reverts to standard, non-anti-lock brakes.

WARNING!

Pumping of the anti-lock brakes will diminish their effectiveness and may lead to an accident. Pumping makes the stopping distance longer. Just press firmly on your brake pedal when you need to slow down or stop.

WARNING!

† The Anti-Lock Brake System (ABS) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.

† The ABS cannot prevent accidents,

including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. † The capabilities of an ABS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.

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POWER STEERING The standard power steering system will give you good vehicle response and increased ease of maneuverability in tight spaces. The system will provide mechanical steering capability if power assist is lost. If for some reason the power assist is interrupted, it will still be possible to steer your vehicle. Under these condi- tions you will observe a substantial increase in steering effort, especially at very low vehicle speeds and during parking maneuvers. Increased noise levels at the end of the steering NOTE: wheel travel are considered normal and does not indicate that there is a problem with the power steering system. Upon initial start-up in cold weather, the power steering pump may make noise for a short period of time. This is due to the cold, thick fluid in the steering system. This noise should be considered normal, and does not in any way damage the steering system.

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WARNING!

Continued operation with reduced power steering assist could pose a safety risk to yourself and others. Service should be obtained as soon as possible.

CAUTION!

Prolonged operation of the steering system at the end of the steering wheel travel will increase the steering fluid temperature and should be avoided when pos- sible. Damage to the power steering pump may occur.

ELECTRONIC BRAKE CONTROL SYSTEM (ABS/TCS/BAS/HSA/ERM/ESP/TSC) — IF EQUIPPED Your vehicle is equipped with an advanced electronic brake control system that includes Anti-Lock Brake Sys- tem (ABS), Traction Control System (TCS), Brake Assist System (BAS), HSA (Hill Start Assist), Electronic Roll Mitigation (ERM), Electronic Stability Program (ESP) and Trailer Sway Control (TSC). All six systems work to- gether to enhance vehicle stability and control in various driving conditions, and are commonly referred to as ESP.

ABS (Anti-Lock Brake System)

This ABS system aids the driver in maintaining vehicle control under adverse braking conditions. The system controls hydraulic brake pressure to prevent wheel lockup and help avoid skidding on slippery surfaces during braking. For more information about ABS, refer to “Anti-Lock Brake System” under “Brake System” in Section 5 of this manual. NOTE: ABS improves steering control of the vehicle during hard braking maneuvers.

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WARNING!

† ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that af- forded by the condition of the vehicle brakes and tires or the traction afforded.

† The ABS cannot prevent accidents,

including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. † The capabilities of an ABS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.

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Traction Control System (TCS)

BAS (Brake Assist System)

The TCS system monitors the amount of wheel spin of each of the driven wheels. If wheel spin is detected, brake pressure is applied to the slipping wheel(s), and engine power is reduced to provide enhanced acceleration and stability. A feature of the TCS system functions similar to a limited-slip differential and controls the wheel spin across a driven axle. If one wheel on a driven axle is spinning faster than the other, the system will apply the brake of the spinning wheel. This will allow more engine torque to be applied to the wheel that is not spinning. This feature remains active even if TCS and ESP are in the “Partial Off” mode. Refer to “ESP (Electronic Stability Program)” in this Section of this manual. This brake pressure modulation transfers drive torque from slipping to non-slipping wheels to provide optimal forward trac- tion.

ESP OFF Button Location

The BAS is designed to optimize the vehicle’s braking capability during emergency braking maneuvers. The BAS system detects an emergency braking situation by sensing the rate and amount of brake application and then applies optimum pressure to the brakes. The system

applies optimum pressure to the brakes in emergency braking conditions. This can help reduce braking dis- tances. The BAS complements the ABS. Applying the brakes very quickly results in the best BAS assistance. To receive the benefit of BAS, you must apply continuous braking pressure during the stopping sequence. Do not reduce brake pedal pressure unless braking is no longer desired. Once the brake pedal is released, the BAS is deactivated.

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WARNING!

† BAS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.

† The BAS cannot prevent accidents,

including those resulting from excessive speed in turns, following another vehicle too closely, or hydro- planing. Only a safe, attentive, and skillful driver can prevent accidents. † The capabilities of a BAS-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.

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HSA (Hill Start Assist) The HSA system is designed to assist the driver in launching a vehicle on an incline. HSA will maintain the level of brake pressure the driver inputs for a short duration once the driver takes his foot off of the brake pedal. If the driver does not apply the throttle during this short duration, the system will release brake pressure and the vehicle will roll down the incline. The system will release brake pressure in proportion to the amount of throttle applied. During operation, Hill Start Assist will activate the brake control system and a clicking noise will occur. If your foot is on the brake pedal during operation you may feel a slight pedal movement. The clicking and pedal move- ment is normal and both will stop when HSA becomes inactive.

WARNING!

If the clutch pedal (manual vehicles only) remains depressed during the application of the throttle, the HSA will disengage allowing the vehicle to roll down the incline. This could cause a collision with another vehicle or object. To avoid this, do not apply throttle while depressing the clutch pedal until you are ready to release the clutch. Always remember the driver is responsible for braking the vehicle.

HSA Activation Criteria The following criteria must be met in order for HSA to activate: † Vehicle must be stopped † Vehicle must be on a 7% or greater incline

† Gear selection matches vehicle uphill direction (i.e., vehicle facing uphill is in forward gear; vehicle back- ing uphill is in REVERSE gear).

WARNING!

There may be situations on minor hills (i.e., less than 7%), with a loaded vehicle, or while pulling a trailer where the system will not activate and slight rolling may occur, which could cause a collision with an- other vehicle or object. Always remember the driver is responsible for braking the vehicle.

The system will only work if the intended direction of the vehicle and vehicle gear match. For example, if the intended direction is forward up a hill and the vehicle is in drive (automatic equipped vehicle), and the activation criteria are met, HSA will activate.

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HSA on Automatic Vehicles The system will work in REVERSE and all forward gears on vehicles equipped with an automatic transmission. The system will not activate if the vehicle is placed in neutral. HSA on Manual Vehicles The system will work in REVERSE, forward gears, and NEUTRAL on manual transmission equipped vehicles. The system does not recognize NEUTRAL on manual vehicles, thus it will hold the vehicle on an incline for a short period while in NEUTRAL, regardless of clutch position. To prevent this, do not attempt to roll down a hill simply by putting the transmission in NEUTRAL and letting gravity act on the vehicle, as the HSA will prevent the vehicle from rolling. Instead, use the appropriate gear for moving in the desired direction.

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Towing and Hauling with HSA (Vehicles Equipped with Automatic Transmissions Only) The HSA system does not know if your vehicle is loaded or towing a trailer, unless the TOW/HAUL button, located on the transmission gear shift lever, is selected. When activated, the TOW/HAUL light will illuminate in the instrument cluster. For more information on TOW/ HAUL mode, refer to “When To USE TOW/HAUL and O/D OFF Modes” under 9Automatic Transmission” in Section 5. In order to accommodate the extra weight entailed under towing and hauling conditions and to increase driver comfort while launching on a hill, the system recognizes when the TOW/HAUL button is acti- vated and compensates by releasing brake pressure at a slower rate while throttle is applied in order to prevent the vehicle from rolling down the hill.

WARNING!

If you use a trailer brake controller with your trailer, your trailer brakes may be activated and deactivated with the brake switch. If so, when the brake pedal is released, there may not be enough brake pressure to hold the vehicle and trailer on a hill and this could cause a collision with another vehicle or object be- hind you. In order to avoid rolling down the incline while resuming acceleration, manually activate the trailer brake or apply more vehicle brake pressure prior to releasing the brake pedal. Always remember the driver is responsible for braking the vehicle.

WARNING!

HSA is not a parking brake. If you stop the vehicle on a hill without putting the transmission in PARK or using the parking brake, it will roll down the incline and could cause a collision with another vehicle or object. Always remember to use the parking brake while parking on a hill, and that the driver is responsible for braking the vehicle.

HSA Off If you wish to turn off the HSA system, follow this procedure: 1. Start with the engine off and vehicle in PARK (auto- matic transmission) or NEUTRAL with clutch out (manual transmission) with wheels straight. Apply park- ing brake on manual transmission vehicle.

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2. Start the engine. 3. With the engine running, the brake applied, and the clutch out, rotate the steering wheel 180° counterclock- wise from center. 4. Press ESP button four times within twenty seconds. The “ESP/TCS Indicator Light” should appear and dis- appear four times. 5. Rotate the steering wheel 360° clockwise (180° clock- wise from center). 6. Cycle ignition switch OFF then ON. 7. If the sequence was completed properly, the “ESP/ TCS Indicator Light” will blink several times to confirm HSA is off. Steps 1-7 must be completed within 90 seconds to turn off HSA. Repeat steps 1-7 to re-enable HSA functionality.

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Electronic Roll Mitigation (ERM) The ERM system anticipates the potential for wheel lift by monitoring the driver’s steering wheel input and the speed of the vehicle. When ERM determines that the rate of change of the steering wheel angle and vehicle speed are sufficient to potentially cause wheel lift, it applies the appropriate brake and may reduce engine power to lessen the chance that wheel lift will occur. ERM will only intervene during very severe or evasive driving maneu- vers. ERM can only reduce the chance of wheel lift occurring during severe or evasive driving maneuvers. It cannot prevent wheel lift due to other factors such as road conditions, leaving the roadway or striking objects or other vehicles.

WARNING!

Many factors, such as vehicle loading, road condi- tions and driving conditions, influence the chance that wheel lift or rollover may occur. † ERM cannot prevent all wheel lift or rollovers, especially those that involve leaving the roadway or striking objects or other vehicles. Only a safe, attentive, and skillful driver can prevent accidents. † The capabilities of an ERM-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.

ESP (Electronic Stability Program)

The ESP system enhances directional control and stability of the vehicle under various driving conditions. ESP corrects for oversteering or understeering of the vehicle by applying the brake of the appropriate wheel to assist in counteracting the oversteer or understeer condition. Engine power may also be reduced to help the vehicle maintain the desired path. ESP uses sensors in the vehicle to determine the vehicle path intended by the driver and compares it to the actual path of the vehicle. When the actual path does not match the intended path, ESP applies the brake of the appropri- ate wheel to assist in counteracting the oversteer or understeer condition. † Oversteer - when the vehicle is turning more than

appropriate for the steering wheel position.

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† Understeer - when the vehicle is turning less than

appropriate for the steering wheel position.

ESP/TCS Indicator Light

The “ESP/TCS Indicator Light” located in the instrument cluster, starts to flash as soon as the tires lose traction and the ESP system becomes active. The “ESP/TCS Indicator Light” also flashes when TCS is active. If the “ESP/TCS Indicator Light” begins to flash during acceleration, ease up on the accelerator and apply as little throttle as possible. Be sure to adapt your speed and driving to the prevailing road conditions.

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WARNING!

† ESP (Electronic Stability Program) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded by prevailing road conditions. † ESP cannot prevent accidents, including those resulting from excessive speed in turns, driving on slippery surfaces, or hydroplaning. Only a safe, attentive, and skillful driver can prevent accidents. † The capabilities of an ESP-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user’s safety or the safety of others.

The ESP system has multiple operating modes depend- ing on vehicle type: Two-Wheel Drive (2WD) or Four- Wheel Drive (4WD). 4WD vehicles may be equipped

with either a four-mode position (2WD/Neutral/4HI/ 4LO) transfer case or a five-mode position (2WD/ AUTO/Neutral/4H/4LO) transfer case. If you have a 4WD vehicle, and want to determine which transfer case is on your vehicle and how to operate it, refer to the “Four Wheel Drive Operating” in Section 5. All 2WD vehicles and 4WD vehicles in 2WD, AUTO or 4HI Modes can choose the following ESP operating modes:

ESP On This is the normal operating mode for ESP in 2WD/ AUTO/4HI Modes and in 2WD vehicles. Whenever the vehicle is started, or the transfer case (if equipped) is shifted from 4LO or Neutral, back to 4HI or AUTO, the ESP system will be in this mode. This mode should be used for almost all driving situations. ESP should only be turned to “Partial Off” or “ESP Off” for specific reasons as noted below.

ESP Partial Off This mode is entered by momentarily depressing the 9ESP OFF” switch. When in 9Partial Off9 mode, the TCS portion of ESP, except for the “limited slip” feature described in the TCS section, has been disabled and the 9ESP/TCS Indicator Light9 will be illuminated. All other stability features of ESP function normally. This mode is intended to be used if the vehicle is in deep snow, sand, or gravel conditions and more wheel spin than ESP would normally allow is required to gain traction. To turn ESP on again, momentarily depress the 9ESP OFF” switch. This will restore the normal “ESP On” mode of operation. NOTE: To improve the vehicle’s traction when driving with snow chains, or starting off in deep snow, sand or gravel, it may be desirable to switch to the “Partial Off” mode by pressing the ESP switch. Once the situation requiring ESP to be switched to the “Partial Off” mode is

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overcome, turn ESP back on by momentarily depressing the “ESP Control Switch”. This may be done while the vehicle is in motion.

WARNING!

In the Partial Off mode, the engine torque reduction and stability features are desensitized. Therefore, the enhanced vehicle stability offered by ESP is unavailable.

All 4WD vehicles in Auto and 4HI Modes can also choose the following ESP operating mode. This is the only ESP operating mode in 4LO:

Full Off This mode is intended for off-road use when ESP stability features could inhibit vehicle maneuverability due to trail conditions. This mode is entered by depressing and

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holding the “ESP Control Switch” for five seconds when the vehicle is stopped and the engine is running. After five seconds, the “ESP/TCS Indicator Light” will illumi- nate and the “ESP Off” message will appear in the odometer. Press and release the trip odometer button located on the instrument cluster to clear this message. NOTE: The “ESP OFF” message will display and the audible chime will sound when the gear selector is placed into the PARK position from any other position, and then moved out of the PARK position. This will occur even if the message was previously cleared. In this mode, ESP and TCS, except for the “Limited Slip” feature described in the TCS section, are turned off until the vehicle reaches a speed of 40 mph (64 km/h). At 40
mph (64 km/h) the system returns to “Partial Off” mode, described above. When the vehicle speed drops below 35
mph (56 km/h) the ESP system shuts off. ESP is off at low vehicle speeds so that it will not interfere with off-road

driving but ESP function returns to provide the stability feature at speeds above 40 mph (64 km/h). The “ESP/ TCS Indicator Light” will always be illuminated when ESP is off. To turn ESP on again, momentarily depress the “ESP Control Switch”. This will restore the normal “ESP On’ mode of operation. “ESP Off” is the only operating mode for ESP in 4LO. Whenever the vehicle is started in 4LO or the transfer case (if equipped) is shifted from 4HI or Neutral, to 4LO, the ESP system will be in this mode.

WARNING!

With the ESP switched off, the enhanced vehicle sta- bility offered by ESP is unavailable. In an emergency evasive maneuver, the ESP system will not engage to assist in maintaining stability. “ESP Off” mode is intended for off-highway or off-road use, only.

ESP/BAS Warning Lamp and ESP/TCS Indicator Light The malfunction indicator for the ESP is combined with the BAS indicator. The yellow “ESP/BAS Warning Lamp” and the yellow “ESP/TCS Indicator Light” in the instrument cluster both come on when the ignition switch is turned to the ON position. They should both go out with the engine running. If the “ESP/BAS Warning Lamp” comes on continuously with the engine running, a malfunction has been detected in either the ESP or BAS system, or both. If this light remains on after several ignition cycles, and the vehicle has been driven several miles/kilometers at speeds greater than 30 mph (48
km/h), see your authorized dealer as soon as possible to have the problem diagnosed and corrected. NOTE: † The “ESP Indicator Light” and the “ESP/BAS Warning Lamp” come on momentarily each time the ignition switch is turned ON.

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will be ON even if it was turned off previously.

† Each time the ignition is turned ON, the ESP System † The ESP Control System will make buzzing or clicking sounds when it is active. This is normal. The sounds will stop when ESP becomes inactive following the maneuver that caused the ESP activation.

TSC (Trailer Sway Control) The TSC system uses sensors in the vehicle to recognize an excessively swaying trailer and will take the appro- priate actions to attempt to stop the sway. The system may reduce engine power and apply the brake of the appropriate wheel(s) to counteract the sway of the trailer. TSC will become active automatically once an excessively swaying trailer is recognized. No driver action is re- quired. Note that TSC cannot stop all trailers from swaying. Always use caution when towing a trailer and follow the trailer tongue weight recommendations. Refer to “Trailer Towing” in Section 5 of this manual for more

338 STARTING AND OPERATING

information on towing a trailer with your vehicle. When TSC is functioning, the “ESP/TCS Indicator Light” will flash, the engine power may be reduced and you may feel the brakes being applied to individual wheels to attempt to stop the trailer from swaying. TSC is disabled when the ESP system is in the Partial Off or Full Off modes. TSC is only active in the default “ESP On” mode. TSC can be disabled by pressing the ESP Off button and entering “ESP Partial Off” mode. It is not active in the “ESP Partial Off” or “ESP Off” modes. Please refer to the ESP portion of this section for an explanation of the different ESP operating modes.

WARNING!

If TSC activates while driving, slow the vehicle down, stop at the nearest safe location, and adjust the trailer load to eliminate trailer sway.

MULTI-DISPLACEMENT SYSTEM (MDS) — 5.7L ENGINE ONLY This feature offers improved fuel economy by shutting off four of the engine’s eight cylinders during light load and cruise conditions. The system is automatic with no driver inputs or additional driving skills required. NOTE: The MDS system may take some time to return to full functionality after a battery disconnect.

TIRE SAFETY INFORMATION

TIRE MARKINGS

NOTE: † P (Passenger) - Metric tire sizing is based on U.S. design standards. P-Metric tires have the letter “P” molded into the sidewall preceding the size designa- tion. Example: P215/65R15 95H.

STARTING AND OPERATING 339

† European-Metric tire sizing is based on European design standards. Tires designed to this standard have the tire size molded into the sidewall beginning with the section width. The letter 9P9 is absent from this tire size designation. Example: 215/65R15 96H. † LT (Light Truck) - Metric tire sizing is based on U.S. design standards. The size designation for LT-Metric tires is the same as for P-Metric tires except for the letters “LT” that are molded into the sidewall preced- ing the size designation. Example: LT235/85R16. † Temporary spare tires are high-pressure compact spares designed for temporary emergency use only. Tires designed to this standard have the letter “T” molded into the sidewall preceding the size designa- tion. Example: T145/80D18 103M. † High flotation tire sizing is based on U.S. design standards, and it begins with the tire diameter molded into the sidewall. Example: 31x10.5 R15 LT.

340 STARTING AND OPERATING

Tire Sizing Chart

Size Designation:

TIRE SIZING TERMS

P = Passenger Car tire size based on U.S. design standards (....blank....( = Passenger Car tire based on European design standards LT = Light Truck tire based on U.S. design standards T = Temporary spare tire 31 = Overall diameter in inches (in) 215 = Section width in millimeters (mm) 65 = Aspect ratio in percent (%)

— Ratio of section height to section width of tire

10.5 = Section width in inches (in) R = Construction code

— 9R9 means radial construction —9D9 means diagonal or bias construction

15 = Rim diameter in inches (in)

STARTING AND OPERATING 341

Service Description:

TIRE SIZING TERMS

95 = Load Index

— A numerical code associated with the maximum load a tire can carry

H = Speed Symbol

— A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions — The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)

Load Identification:

(....blank....( = Absence of any text on the sidewall of the tire indicates a Standard Load (SL) Tire Extra Load (XL) = Extra load (or reinforced) tire Light Load = Light load tire C, D, E = Load range associated with the maximum load a tire can carry at a specified pressure

Maximum Load — Maximum load indicates the maximum load this tire is designed to carry Maximum Pressure — Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire

342 STARTING AND OPERATING

TIRE IDENTIFICATION NUMBER (TIN) The TIN may be found on one or both sides of the tire, however, the date code may only be on one side. Tires with white sidewalls will have the full TIN, including the date code, located on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is not found on the outboard side, then you will find it on the inboard side of the tire.

TIRE IDENTIFICATION NUMBER

EXAMPLE: DOT MA L9 ABCD 0301
DOT = Department of Transportation

— This symbol certifies that the tire is in compliance with the U.S. Department of Transportation tire safety standards, and is approved for highway use

MA = Code representing the tire manufacturing location (two digits) L9 = Code representing the tire size (two digits) ABCD = Code used by the tire manufacturer (one to four digits) 03 = Number representing the week in which the tire was manufactured (two digits)

—03 means the 3rd week.

01 = Number representing the year in which the tire was manufactured (two digits)

—01 means the year 2001

EXAMPLE: DOT MA L9 ABCD 0301

TIRE IDENTIFICATION NUMBER

— Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991

STARTING AND OPERATING 343

TIRE LOADING AND TIRE PRESSURE

Tire Placard Location NOTE: The proper cold tire inflation pressure is listed on either the face of the driver’s door or the driver’s side B-Pillar.

Tire Placard Location

344 STARTING AND OPERATING

Tire and Loading Information Placard

Tire And Loading Information Placard

This placard tells you important information about the: 1) number of people that can be carried in the vehicle 2) total weight your vehicle can carry 3) tire size designed for your vehicle 4) cold tire inflation pressures for the front, rear, and spare tires.

Loading The vehicle maximum load on the tire must not exceed the load carrying capacity of the tire on your vehicle. You will not exceed the tire’s load carrying capacity if you adhere to the loading conditions, tire size, and cold tire inflation pressures specified on the Tire and Loading Information placard and in the “Vehicle Loading” section of this manual. NOTE: Under a maximum loaded vehicle condition, gross axle weight ratings (GAWRs) for the front and rear axles must not be exceeded. For further information on GAWRs, vehicle loading, and trailer towing, refer to “Vehicle Loading” in this section. To determine the maximum loading conditions of your vehicle, locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs.” on the Tire and Loading Information placard. The

combined weight of occupants, cargo/luggage and trailer tongue weight (if applicable) should never exceed the weight referenced here. Steps for Determining Correct Load Limit 1. Locate the statement “The combined weight of occu- pants and cargo should never exceed XXX kg or XXX lbs” on your vehicle’s placard. 2. Determine the combined weight of the driver and passengers that will be riding in your vehicle. 3. Subtract the combined weight of the driver and pas- sengers from XXX kg or XXX lbs. 4. The resulting figure equals the available amount of cargo and luggage load capacity. For example, if “XXX” amount equals 1,400 lbs (635 kg) and there will be five 150 lb (68 kg) passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs (295
kg) (since 5 x 150 = 750, and 1400 – 750 = 650 lbs [295 kg]).

STARTING AND OPERATING 345

5. Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4. 6. If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle. NOTE: The following table shows examples on how to calculate total load, cargo/luggage, and towing capaci- ties of your vehicle with varying seating configurations and number and size of occupants. This table is for illustration purposes only and may not be accurate for the seating and load carry capacity of your vehicle. NOTE: For the following example, the combined weight of occupants and cargo should never exceed 865 lbs (392
kg).

346 STARTING AND OPERATING

WARNING!

1. Safety—

STARTING AND OPERATING 347

Overloading of your tires is dangerous. Overloading can cause tire failure, affect vehicle handling, and increase your stopping distance. Use tires of the recommended load capacity for your vehicle. Never overload them.

TIRES — GENERAL INFORMATION

Tire Pressure Proper tire inflation pressure is essential to the safe and satisfactory operation of your vehicle. Three primary areas are affected by improper tire pressure:

WARNING!

†Improperly inflated tires are dangerous and can cause accidents. †Under-inflation increases tire flexing and can result in tire failure.

WARNING!

†Over-inflation reduces a tire’s ability to cushion shock. Objects on the road and chuckholes can cause damage that result in tire failure. †Over-inflated or under-inflated tires can affect ve- hicle handling and can fail suddenly, resulting in loss of vehicle control.

348 STARTING AND OPERATING

WARNING!

†Unequal tire pressures can cause steering problems. You could lose control of your vehicle. †Unequal tire pressures from one side of the vehicle to the other can cause the vehicle to drift to the right or left. †Always drive with each tire inflated to the recom- mended cold tire inflation pressure.

2. Economy— Improper inflation pressures can cause uneven wear patterns to develop across the tire tread. These abnormal wear patterns will reduce tread life resulting in a need for earlier tire replacement. Under-inflation also increases tire rolling resistance and results in higher fuel consump- tion.

3. Ride Comfort and Vehicle Stability— Proper tire inflation contributes to a comfortable ride. Over-inflation produces a jarring and uncomfortable ride. Tire Inflation Pressures The proper cold tire inflation pressure is listed either on the face of the driver’s door or on the driver’s side “B” pillar. Some vehicles may have Supplemental Tire Pressure Information for vehicle loads that are less than the maximum loaded vehicle condition. These pressure con- ditions will be found in the “Supplemental Tire Pressure Information” section of this manual.

STARTING AND OPERATING 349

CAUTION!

After inspecting or adjusting the tire pressure, al- ways reinstall the valve stem cap (if equipped). This will prevent moisture and dirt from entering the valve stem, which could damage the valve stem.

Inflation pressures specified on the placard are always “cold tire inflation pressure.” Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1
mi (1.6 km) after a three hour period. The cold tire inflation pressure must not exceed the maximum infla- tion pressure molded into the tire sidewall. Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire pressures vary with temperature changes.

Tire Placard Location

The pressure should be checked and adjusted as well as inspecting for signs of tire wear or visible damage at least once a month. Use a good quality pocket-type gauge to check tire pressure. DO NOT make a visual judgement when determining proper inflation. Radial tires may look properly inflated even when they are under-inflated.

350 STARTING AND OPERATING

Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature change. Keep this in mind when checking tire pressure inside a garage, especially in the Winter. Example: If garage temperature = 68°F (20°C) and the outside temperature = 32°F (0°C) then the cold tire inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition. Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation. DO NOT reduce this normal pressure build up or your tire pressure will be too low. Tire Pressures for High Speed Operation The manufacturer advocates driving at safe speeds within posted speed limits. Where speed limits or condi- tions are such that the vehicle can be driven at high speeds, maintaining correct tire inflation pressure is very important. Increased tire pressure and reduced vehicle

loading may be required for high-speed vehicle opera- tion. Refer to original equipment or an authorized tire dealer for recommended safe operating speeds, loading and cold tire inflation pressures.

WARNING!

High speed driving with your vehicle under maxi- mum load is dangerous. The added strain on your tires could cause them to fail. You could have a serious accident. Don’t drive a vehicle loaded to the maximum capacity at continuous speeds above 75
mph (120 km/h).

Radial Ply Tires

WARNING!

Combining radial ply tires with other types of tires on your vehicle will cause your vehicle to handle poorly. The instability could cause an accident. Al- ways use radial ply tires in sets of four (or six, in case of trucks with dual rear wheels). Never combine them with other types of tires.

Cuts and punctures in radial tires are repairable only in the tread area because of sidewall flexing. Consult your authorized tire dealer for radial tire repairs. Compact Spare Tire — If Equipped The compact spare is for temporary emergency use with radial tires. It is engineered to be used on your style

STARTING AND OPERATING 351

vehicle only. Since this tire has limited tread life, the original tire should be repaired (or replaced) and rein- stalled at the first opportunity.

WARNING!

† Temporary use spare tires are for emergency use only. With these tires, DO NOT drive more than 50
mph (80 km/h). † Temporary-use spare tires have limited tread life. When the tread is worn to the tread wear indica- tors, the temporary use spare tire needs to be replaced. † Be sure to follow the warnings, which apply to your spare. Failure to do so could result in spare tire failure and loss of vehicle control.

352 STARTING AND OPERATING

DO NOT install a wheel cover or attempt to mount a conventional tire on the compact spare wheel, since the wheel is designed specifically for the compact spare. DO NOT install more than one compact spare tire/wheel on the vehicle at any given time.

original equipped tire on the front or rear axle of your vehicle, but it is not. Installation of this limited-use spare tire affects vehicle handling. Since it is not the same tire, replace (or repair) the original tire and reinstall on the vehicle at the first opportunity.

CAUTION!

WARNING!

Because of the reduced ground clearance, DO NOT take your vehicle through an automatic car wash with the compact spare installed. Damage to the vehicle may result.

Limited-Use Spare — If Equipped The limited-use spare tire is for temporary emergency use on your vehicle. This tire is identified by a limited- use spare tire warning label located on the limited-use spare tire and wheel assembly. This tire may look like the

The limited-use spare tires are for emergency use only. Installation of this limited-use spare tire affects vehicle handling. With this tire, DO NOT drive more than 50 mph (80 km/h). Keep inflated to the cold tire inflation pressure listed on either your tire placard or limited-use spare tire and wheel assembly. Replace (or repair) the original tire at the first opportunity and reinstall it on your vehicle. Failure to do so could result in loss of vehicle control.

STARTING AND OPERATING 353

Tread Wear Indicators Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced.

Tire Spinning When stuck in mud, sand, snow, or ice conditions, DO NOT spin your vehicle’s wheels faster than 30 mph (48
km/h) or for longer than 30 seconds continuously with- out stopping when you are stuck. For additional information, refer to “Freeing A Stuck Vehicle” in Section 6.

WARNING!

Fast spinning tires can be dangerous. Forces gener- ated by excessive wheel speeds may cause tire dam- age or failure. A tire could explode and injure some- one. DO NOT spin your vehicle’s wheels faster than 30 mph (48 km/h) or for more than 30 seconds continuously when you are stuck, and don’t let anyone near a spinning wheel, no matter what the speed.

354 STARTING AND OPERATING

These indicators are molded into the bottom of the tread grooves. They will appear as bands when the tread depth becomes 1/16 in (2 mm). When the tread is worn to the tread wear indicators, the tire should be replaced. Many states have laws requiring tire replacement at this point. Life of Tire The service life of a tire is dependent upon varying factors including, but not limited to: † Driving style † Tire pressure † Distance driven

WARNING!

Tires and the spare tire should be replaced after six years, regardless of the remaining tread. Failure to follow this warning can result in sudden tire failure. You could lose control and have an accident resulting in serious injury or death.

Keep dismounted tires in a cool, dry place with as little exposure to light as possible. Protect tires from contact with oil, grease, and gasoline.

Replacement Tires The tires on your new vehicle provide a balance of many characteristics. They should be inspected regularly for wear and correct cold tire inflation pressure. The manu- facturer strongly recommends that you use tires equiva- lent to the originals in size, quality and performance when replacement is needed. (Refer to the paragraph on “Tread Wear Indicators”). Refer to the “Tire and Loading Information” placard for the size designation of your tire. The service description and load identification will be found on the original equipment tire. Failure to use equivalent replacement tires may adversely affect the safety, handling, and ride of your vehicle. We recommend that you contact your original equipment or an autho- rized tire dealer with any questions you may have on tire specifications or capability.

STARTING AND OPERATING 355

WARNING!

DO NOT use a tire, wheel size or rating other than that specified for your vehicle. Some combinations of unapproved tires and wheels may change suspension dimensions and performance characteristics, result- ing in changes to steering, handling, and braking of your vehicle. This can cause unpredictable handling and stress to steering and suspension components. You could lose control and have an accident resulting in serious injury or death. Use only the tire and wheel sizes with load ratings approved for your vehicle.

356 STARTING AND OPERATING

WARNING!

† NEVER use a tire with a smaller load index or capacity, other than what was originally equipped on your vehicle. Using a tire with a smaller load index could result in tire overloading and failure. You could lose control and have an accident. † Failure to equip your vehicle with tires having adequate speed capability can result in sudden tire failure and loss of vehicle control.

CAUTION!

Replacing original tires with tires of a different size may result in false speedometer and odometer readings.

wear.

Alignment And Balance Poor suspension alignment may result in: † Fast tire wear. † Uneven tire wear, such as feathering and one-sided † Vehicle pull to right or left. Tires may also cause the vehicle to pull to the left or right. Alignment will not correct this condition. See your authorized dealer for proper diagnosis. Improper alignment will not cause vehicle vibration. Vibration may be a result of tire and wheel out-of- balance. Proper balancing will reduce vibration and avoid tire cupping and spotty wear.

SUPPLEMENTAL TIRE PRESSURE INFORMATION — IF EQUIPPED A light load vehicle condition is defined as two passen- gers [150 lbs (68 kg) each] plus 200 lbs (91 kg) of cargo. Cold tire inflation pressures for a lightly loaded vehicle will be found on the face of the driver’s door.

TIRE CHAINS Use “Class S” chains on 1500 model Trucks, or other traction aids that meet SAE Type “S” specifications. Use “Class U” chains on 2500/3500 model Trucks, or other traction aids that meet SAE Type “U” specifica- tions. NOTE: Chains must be the proper size for the vehicle, as recommended by the chain manufacturer.

STARTING AND OPERATING 357

CAUTION!

To avoid damage to your vehicle, tires or chains, observe the following precautions:

† Because of limited chain clearance between tires and other

driving about 0.5 mile (0.8 km).

suspension components, it is important that only chains in good condition are used. Broken chains can cause serious vehicle damage. Stop the vehicle immediately if noise occurs that could suggest chain breakage. Remove the damaged parts of the chain before further use.

† Install chains as tightly as possible and then retighten after † Do not exceed 45 mph (72 km/h). † Drive cautiously and avoid severe turns and large bumps, † Do not install tire chains on front wheels of 4x2 vehicles. † Do not drive for a prolonged period on dry pavement. † Observe the tire chain manufacturer’s instructions on method

especially with a loaded vehicle.

of installation, operating speed, and conditions for usage. Always use the lower suggested operating speed of the chain manufacturer if different than the speed recommended by the manufacturer.

358 STARTING AND OPERATING

These cautions apply to all chain traction devices, includ- ing link and cable (radial) chains. Tire chain use is permitted only on the rear tires of 4X2
model trucks. NOTE: The use of class “S” chains is permitted on 1500
model trucks with P245/70R17 tires only. NOTE: The use of class “U” chains is permitted on the front and rear of 4X4, 2500 model trucks with LT245/ 70R17E tires. NOTE: The use of class “U” chains is permitted on the front and rear of 4X4, 3500 model trucks with Dual Rear Wheels and LT235/80R17E tires. NOTE: On 4X2 2500/3500 model trucks, class “U” snow chains are permitted on the rear wheels only of vehicles equipped with LT245/70R17, LT265/70R17, and LT235/ 80R17 size tires.

NOTE: On 4x4 2500/3500 SRW (Single Rear Wheel) model trucks, class “U” snow chains are permitted on the rear wheels only of vehicles equipped with LT265/ 70R17E.

CAUTION!

Do not use tire chains on 4x4 model trucks equipped with P265/70R17, LT275/70R17, P275/60R20, tires. There may not be adequate clearance for the chains and you are risking structural or body damage to your vehicle. Do not use tire chains on the 4X2 front wheels of 2500/3500 SRW (Single Rear Wheels) equipped with LT245/70R17, LT265/70R17 LT235/ 80R17 tires, or 4X4 front wheels of Ram Trucks equipped with LT265/70R17E. There may not be adequate clearance for the chains and you are risking structural or body damage to your vehicle.

SNOW TIRES Snow tires should be of the same size and type construc- tion as the front tires. Consult the manufacturer of the snow tire to determine any maximum vehicle speed requirement associated with the tire. These tires should always be operated at the vehicle maximum capacity inflation pressures under any load condition. While studded tires improve performance on ice, skid and traction capability on wet or dry surfaces may be poorer than that of non-studded tires. Some states pro- hibit studded tires; local laws should be checked before using these tire types.

therefore,

STARTING AND OPERATING 359

TIRE ROTATION RECOMMENDATIONS Tires on the front and rear axles of vehicles operate at different loads and perform different steering, driving, and braking functions. For these reasons, they wear at unequal rates and develop irregular wear patterns. These effects can be reduced by timely rotation of tires. The benefits of rotation are especially worthwhile with ag- gressive tread designs such as those on ON/OFF Road type tires. Rotation will increase tread life, help to main- tain mud, snow, and wet traction levels, and contribute to a smooth, quiet ride.

360 STARTING AND OPERATING

Follow the recommended tire rotation frequency for your type of driving found in the “Maintenance Schedules” Section of this manual. More frequent rotation is permis- sible if desired. The reasons for any rapid or unusual wear should be corrected prior to rotation being per- formed.

NOTE: On Canadian vehicles only, if your vehicle is equipped with All-Season type tires on the front and ON/OFF Road type tires mounted on the rear, do not use a front-to-back rotation pattern. Instead, rotate your tires side-to-side at the recommended intervals.

Dual Rear Wheels

The tires used on dual wheel assemblies should be matched for wear to prevent overloading one tire in a set. To check if tires are even, lay a straight edge across all four tires. The straight edge should touch all the tires.

STARTING AND OPERATING 361

CAUTION!

3500 Dual Rear Tires have only one approved direc- tion of rotation. This is to accommodate the asym- metrical design (tread pattern) of the ON/OFF road tire and the use of Outline White Letter (OWL) tires. † When replacing a flat, the spare tire may have to be remounted on the rim, or installed at a different location, to maintain the correct placement of the tire on the wheel relative to the tire/wheel position on the truck. For example, if the spare is used to replace an outer rear tire it will have to be re- mounted on the rim so that the wheel is dished inward. That way the tread design of asymmetrical tires and the white writing of the OWL tires will maintain proper position.

362 STARTING AND OPERATING

TIRE PRESSURE MONITOR SYSTEM (TPMS) — IF EQUIPPED The Tire Pressure Monitoring System (TPMS) will warn the driver of a low tire pressure based on the vehicle recommended cold tire inflation placard pressure. The placard pressure is defined on the Tire and Loading Information label. The Tire and Loading Information label is located on the drivers side B-pillar. Vehicles equipped to be operated in either the “max load inflation pressure” condition described on the Tire and Loading Information label or the alternative “light load inflation pressure” condition described on the Supplemental Tire Pressure Information label, may also be equipped with a reset switch to choose the appropriate TPMS low pres- sure warning threshold levels based upon the vehicle load condition. The Supplemental Tire Pressure Informa- tion label is located on the rear face of the driver door. Operation of the “Light Load” reset switch is described later in this manual section.

The tire pressure will vary with temperature by approxi- mately 1 psi (6.9 kPa) for every 12°F (6.5°C). This means that when the outside temperature decreases, the tire pressure will decrease. Tire pressure should always be set based on cold inflation tire pressure. This is defined as the tire pressure after a vehicle has not been driven for more than 3 hours, or driven less than 1 mile after a 3
hour period. For information on how to properly inflate the vehicle’s tires, refer to ”Tire Pressure” under “Tires – General Information” in this section. The tire pressure will also increase as the vehicle is driven - this is normal and there should be no adjustment for this increased pressure. The TPM System will warn the driver of a low tire pressure if the tire pressure falls below the low pressure warning threshold for any reason, including low tem- perature effects, or natural pressure loss through the tire.

The TPM System will continue to warn the driver of low tire pressure as long as the condition exists, and will not turn off until the tire pressure is at or above recom- mended cold placard pressure. Once the low tire pressure warning has been illuminated, the tire pressure must be increased to the recommended cold placard pressure in order for the TPMS warning lamp to be turned off. The system will automatically update and the TPMS warning lamp will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph (25 km/h) to receive this information. As an example, assume your vehicle has a recommended cold tire inflation placard pressure (parked for more than 3 hours) of 35 psi (241 kPa). If the ambient temperature is 68°F (20°C) and the measured tire pressure is 30 psi (207
kPa), a temperature drop to 20°F (-7°C) will decrease the tire pressure to approximately 26 psi (179 kPa). This tire pressure is sufficiently low enough to turn ON the Tire

STARTING AND OPERATING 363

Pressure Monitoring lamp. Driving the vehicle may cause the tire pressure to rise to approximately 30 psi (207 kPa), but the Tire Pressure Monitoring lamp will still be ON. In this situation, the Tire Pressure Monitoring lamp will turn OFF only after the tires have been inflated to the vehicle’s recommended cold tire placard pressure value.

CAUTION!

The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equip- ment that is not of the same size, type, and/or style. After-market wheels can cause sensor damage. Do not use aftermarket tire sealants or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result.

364 STARTING AND OPERATING

CAUTION!

After inspecting or adjusting the tire pressure always reinstall the valve stem cap. This will prevent mois- ture and dirt from entering the valve stem, which could damage the Tire Pressure Monitoring Sensor.

NOTE: † The TPMS is not intended to replace normal tire care and maintenance, nor to provide warning of a tire failure or condition. † The TPMS should not be used as a tire pressure gauge

while adjusting your tire pressure.

† Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. † The TPMS is not a substitute for proper tire mainte- nance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the “Tire Pressure Monitoring Telltale Light.” † Seasonal temperature changes will affect tire pressure, and the TPM system will monitor the actual tire pressure in the tire.

Tire Pressure Monitor System (TPMS) “Light Load” Reset Switch Description – If Equipped

WARNING!

Never operate your vehicle with the TPMS and tire pressures set to the Light Load Inflation Pressure settings if carrying more than two occupants (150 lbs each) plus 200 pounds of cargo. The vehicle “Light Load Definition” is found in the Supplemental Tire Pressure Information Label which is located on the rear face of the driver door. Failure to do so may cause you to lose control resulting in an accident, causing serious or fatal injury.

STARTING AND OPERATING 365

The TPMS “Light Load” reset switch will allow the driver to switch between the max load inflation pressure (cold) low pressure warning threshold and the light load infla- tion pressure (cold) low pressure warning threshold depending on the vehicle’s load condition. The Tire and Loading Information label defines the recommended front and rear cold tire inflation pressures for the vehicle when operating in the Max Load condition. A Supple- mental Tire Pressure Information label is also available defining Light Load tire inflation pressures when oper- ating in the Light Load condition. When the “Light Load” reset switch LED is ON, the TPMS is using the light load inflation pressure (cold) low inflation warning thresh- olds.

366 STARTING AND OPERATING

Light Load Reset Switch

“Light Load” Reset Switch Operation – If Equipped † This vehicle may have different recommended tire pressure values between the front and rear tires as shown in both the Tire Loading Information Label and the Supplemental Tire Pressure Information Label. It is also equipped to be driven with tire pressures appro- priate to either a Light Load condition or the vehicle Max Load condition. † The “Light Load” reset switch will allow the driver to change between the max load inflation pressure (cold) low pressure warning threshold and the light load inflation pressure (cold) low pressure warning thresh- old depending on the vehicle’s load condition. Refer to the “Supplemental Tire Pressure Information” label for the vehicle’s Light Load inflation pressures and “Tire and Loading Information” label for the vehicle’s Max Load inflation pressures.

STARTING AND OPERATING 367

Tire Pressure Information label. The Supplemental Tire Pressure Information label is located on the rear face of the driver door. Use an accurate tire gauge to check the tire pressures when lowering all four tire pressures. After all four tire pressures have been lowered to the Light Load inflation pressures, press the “Light Load” reset switch. If the “Light Load” switch’s amber colored LED turns ON, the TPMS is using the light load inflation pressure (cold) low pressure warning thresholds. If the “Light Load” reset switch amber colored LED flashes on and off for 10 seconds, after all four tire pressures have been lowered to the Light Load inflation pressures, the pressure in any one of the four tires may not be at the light load inflation pressure (cold) values as indicated for the Light Load condition as defined on the Supplemental Tire Pressure Information label located on the rear face of the driver door. Using an accurate tire pressure gauge, re-check the tire pressures for the light load inflation pressure (cold) value.

Example Supplemental Tire Pressure Label

To switch from the max load inflation pressure (cold) low pressure warning threshold to the light load inflation pressure (cold) low pressure warning threshold, begin by placing the ignition switch in the RUN position. Next, lower all four road tire pressures to the Light Load Inflation Pressure values as listed on the Supplemental

368 STARTING AND OPERATING

WARNING!

It is the driver’s responsibility to change to the max load inflation pressure (cold) low pressure warning threshold condition when not driving in the light load condition as defined as two occupants ( 150 lbs each) plus 200 pounds of cargo. The vehicle “Light Load Definition” is found in the Supplemental Tire Pressure Information label located on the rear face of the driver door. Failure to do so may cause you to lose control resulting in an accident, causing serious or fatal injury.

To switch back to the max load inflation pressure (cold) low pressure warning threshold, press the “Light Load” reset switch. It is not necessary to first fill the tires to the max load inflation pressure (cold) values to switch the TPMS system to the max load inflation pressure (cold)

low pressure warning threshold. If after pressing the “Light Load” reset switch and tire pressures are below the max load inflation pressure (cold) low pressure warning thresholds, the TPMS low pressure warning telltale lamp located in the Instrument Cluster will turn ON and a chime will sound. The tire pressures are now required to be inflated to the max load inflation pressure (cold) values described on the Tire and Loading Informa- tion label. The Tire and Loading Information label is located on the drivers side B-pillar. If the “Light Load” reset switch LED turns OFF the TPMS has been reset and the TPMS is using the max load inflation pressure (cold) low pressure warning thresholds. Tire Pressure Monitor System Components The Tire Pressure Monitor System (TPMS) uses wireless technology with wheel rim mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem, transmit tire pressure readings to the Receiver Module.

It is particularly important, for you to check the NOTE: tire pressure in all of your tires regularly and to maintain the proper pressure. The Tire Pressure Monitoring System (TPMS) consists of the following components: † Receiver Module † 4 Wheel Sensors † 2 Trigger Modules (mounted in the front wheel-wells) † “Light Load” Reset Switch (located in the instrument † Tire Pressure Monitoring Telltale Lamp

panel)

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Tire Pressure Monitoring Low Pressure Warnings

The Tire Pressure Monitoring Telltale Lamp will illuminate in the instrument cluster, and an au- dible chime will be activated when one or more of the four active road tire pressures are low. Should this occur, you should stop as soon as possible, check the inflation pressure of each tire on your vehicle and inflate each tire to the vehicle’s recommended cold placard pressure value. The system will automatically update and the Tire Pressure Monitoring Lamp will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph (25 km/h) to receive this information. Check TPMS Warnings The Tire Pressure Monitoring Telltale Warning Light located in the Instrument Cluster will flash on and off for 75 seconds and will remain on solid when a system fault is detected. The system fault will also sound a chime. If

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the ignition key is cycled, this sequence will repeat, providing the system fault still exists. A system fault can occur by any of the following scenarios: 1. Signal interference due to electronic devices or driving next to facilities emitting the same Radio Frequencies as the TPM sensors. 2. Installing aftermarket window tinting that affects ra- dio wave signals. 3. Accumulation of snow or ice around the wheels or wheel housings. 4. Using tire chains on the vehicle. 5. Using wheels/tires not equipped with TPM sensors. 6. Loss of communication with the trigger modules or tire pressure monitoring sensors. NOTE: Your vehicle is equipped with a non-matching full size spare wheel and tire assembly.

1. This spare tire does not have a tire pressure monitor- ing sensor. Therefore, the TPMS will not monitor the tire pressure in the spare tire. 2. If you install the full size spare tire in place of a road tire that has a pressure below the low-pressure warning limit, upon the next ignition key cycle, a chime will sound and the TPM Telltale Light will still turn ON due to the low tire. 3. However, after driving the vehicle for up to 10 min- utes above 15 mph (25 km/h), the TPM Telltale Light will flash on and off for 75 seconds and then remain on solid. 4. For each subsequent ignition key cycle, a chime will sound and the TPM Telltale Light will flash on and off for 75 seconds and then remain on solid. 5. Once you repair or replace the original road tire, and reinstall it on the vehicle in place of the full size spare tire, the TPMS will update automatically and the TPM Telltale

Light will turn OFF, as long as no tire pressure is below the low-pressure warning limit in any of the four active road tires. The vehicle may need to be driven for up to 10
minutes above 15 mph (25 km/h) in order for the TPMS to receive this information. General Information This device complies with part 15 of the FCC rules and RSS 210 of Industry Canada. Operation is subject to the following conditions: † This device may not cause harmful interference. † This device must accept any interference received, including interference that may cause undesired op- eration.

The tire pressure sensors are covered under one of the following licenses: United States . . . . . . . . . . . . . . . . . . . . . KR5S120123
Canada . . . . . . . . . . . . . . . . . . . . . . . . 2671-S120123

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FUEL REQUIREMENTS

All engines (except 5.7L engines) are de- signed to meet all emissions regulations and provide excellent fuel economy and performance when using high-quality un- leaded “regular” gasoline having an oc- tane rating of 87. The use of premium All Engines Except 5.7L gasoline is not recommended. Under nor- mal conditions, the use of premium gasoline will not provide a benefit over high-quality regular gasolines, and in some circumstances may result in poorer performance. The 5.7L engine is designed to meet all emissions regulations and provide satisfac- tory fuel economy and performance when using high-quality unleaded gasoline hav- ing an octane range of 87 to 89. The manu- facturer recommends the use of 89 octane

5.7L Engines

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for optimum performance. The use of premium gasoline is not recommended. Under normal conditions, the use of premium gasoline will not provide a benefit over high- quality regular and mid-grade gasolines, and in some circumstances may result in poorer performance. Light spark knock at low engine speeds is not harmful to your engine. However, continued heavy spark knock at high speeds can cause damage and immediate service is required. Poor quality gasoline can cause problems such as hard starting, stalling and hesitations. If you experience these symptoms, try another brand of “regular” gasoline be- fore considering service for the vehicle. Over 40 auto manufacturers worldwide have issued and endorsed consistent gasoline specifications (the World- wide Fuel Charter, WWFC) to define fuel properties necessary to deliver enhanced emissions, performance

and durability for your vehicle. We recommend the use of gasolines that meet the WWFC specifications if they are available. Reformulated Gasoline Many areas of the country require the use of cleaner burning gasoline referred to as “Reformulated Gasoline” Reformulated gasolines contain oxygenates, and are spe- cifically blended to reduce vehicle emissions and im- prove air quality. The manufacturer supports the use of reformulated gaso- lines. Properly-blended reformulated gasolines will pro- vide excellent performance and durability of engine and fuel system components.

Gasoline/Oxygenate Blends Some fuel suppliers blend unleaded gasoline with oxy- genates such as 10% ethanol, MTBE, and ETBE. Oxygen- ates are required in some areas of the country during the Winter months to reduce carbon monoxide emissions. Fuels blended with these oxygenates may be used in your vehicle.

CAUTION!

DO NOT use gasolines containing Methanol or E85
Ethanol. Use of these blends may result in starting and drivability problems and may damage critical fuel system components.

4.7L Engine — If Equipped , is now rated for NOTE: E85 Ethanol use. Only vehicles with the E-85 fuel filler door label can operate on E-85. For more information, refer to “Flexible Fuel” in this section.

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Problems that result from using methanol/gasoline or E85 Ethanol blends are not the responsibility of the manufacturer. While MTBE is an oxygenate made from Methanol, it does not have the negative effects of Metha- nol. MMT In Gasoline MMT is a manganese containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same octane number without MMT. Gasoline blended with MMT reduces spark plug life and reduces emission system performance in some vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content of gasoline may not be indicated on the gasoline pump, therefore, you should ask your gasoline retailer whether or not the gasoline contains MMT. It is even more important to look for gasolines without MMT in Canada, because MMT can be used at levels higher than those

374 STARTING AND OPERATING

allowed in the United States. MMT is prohibited in Federal and California reformulated gasoline. Materials Added To Fuel All gasolines sold in the United States are required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and would result in unnecessary cost. There- fore, you should not have to add anything to the fuel. Fuel System Cautions

CAUTION!

Follow these guidelines to maintain your vehicle’s performance:

† The use of leaded gas is prohibited by Federal law. Using leaded gasoline can impair engine performance, damage the emission control system.

† An out-of-tune engine, or certain fuel or ignition malfunctions, can cause the catalytic converter to overheat. If you notice a pungent burning odor or some light smoke, your engine may be out of tune or malfunctioning and may require immediate service. Contact your authorized dealer for service assistance. † When pulling a heavy load or driving a fully-loaded vehicle when the humidity is low and the temperature is high, use a premium unleaded fuel to help prevent spark knock. If spark knock persists, lighten the load, or engine piston damage may result. † The use of fuel additives which are now being sold as octane enhancers is not recommended. Many of these products contain high concentrations of methanol. Fuel system damage or vehicle performance problems resulting from the use of such fuels or additives is not the responsibility of the manufacturer.

Intentional tampering with emissions control in civil penalties being assessed

NOTE: systems can result against you. Carbon Monoxide Warnings

WARNING!

Carbon monoxide (CO) in exhaust gases is deadly. Follow the precautions below to prevent carbon monoxide poisoning:

† Do not inhale exhaust gases. They contain carbon monoxide, a colorless and odorless gas which can kill. Never run the engine in a closed area, such as a garage, and never sit in a parked vehicle with the engine running for an extended period. If the vehicle is stopped in an open area with the engine running for

STARTING AND OPERATING 375

more than a short period, adjust the ventilation system to force fresh, outside air into the vehicle. † Guard against carbon monoxide with proper mainte- nance. Have the exhaust system inspected every time the vehicle is raised. Have any abnormal conditions repaired promptly. Until repaired, drive with all side windows fully open. † Keep the liftgate closed when driving your vehicle to prevent carbon monoxide and other poisonous ex- haust gases from entering the vehicle.

ADDING FUEL

Adding Fuel (Gas Engines) The fuel tank filler tube has a restricting door about 2 in (50 mm) inside the opening. If using a portable fuel container, it should have a flexible nozzle long enough to force open the restricting door.

376 STARTING AND OPERATING

CAUTION!

CAUTION!

Damage to the fuel system or emission control sys- tem could result from using an improper fuel tank filler tube cap (gas cap). A poorly fitting cap could let impurities into the fuel system. Also, a poorly-fitted aftermarket cap can cause the MIL (Malfunction Indicator Light) to illuminate, due to fuel vapors escaping from the system.

CAUTION!

A poorly fitting gas cap may cause the Malfunction Indicator Light to turn on.

To avoid fuel spillage and overfilling, do not “top off” the fuel tank after filling.

NOTE: When the fuel nozzle “clicks” or shuts off, the fuel tank is full.

WARNING!

† Never have any smoking materials lit in or near the vehicle when the gas cap is removed or the tank filled. † Never add fuel to the vehicle when the engine is running. This is in violation of most state and federal fire regulations and will cause the Mal- function Indicator Light to turn on.

NOTE: Tighten the gas cap 1/4 turn until you hear one click. This is an indication that the cap is properly tightened. If the gas cap is not tightened properly, the Malfunction Indicator Light will come on, Be sure the gas cap is tightened every time the vehicle is refueled.

WARNING!

A fire may result if gasoline is pumped into a portable container that is inside of a vehicle. You could be burned. Always place gas containers on the ground while filling.

Loose Fuel Filler Cap (Gas Cap) Message If the vehicles diagnostic system determines that the fuel filler cap in loose, improperly installed, or damaged, a GASCAP message will be displayed in the instrument

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cluster. Tighten the gas cap until a “clicking” sound is heard. This is an indication that the gas cap is properly tightened. Press the odometer reset button to turn the message off. If the problem persists, the message will appear the next time the vehicle is started. This might indicate a damaged cap. If the problem is detected twice in a row, turn on the Malfunction Indicator Light (MIL). Resolving the problem will turn the MIL light off.

the system will

FLEXIBLE FUEL — IF EQUIPPED

E-85 General Information

The information in this section is for Flexible Fuel ve- hicles only. These vehicles can be identified by the unique yellow gas cap that states, Ethanol (E-85) or Unleaded Gasoline Only. This section only covers those subjects that are unique to these vehicles. Please refer to the other

378 STARTING AND OPERATING

sections of this manual for information on features that are common between Flexible Fuel and gasoline-only powered vehicles.

CAUTION!

Only vehicles with the E-85 fuel filler cap (gas cap) can operate on E-85.

E-85 Fuel Cap

E-85 Badge

ETHANOL FUEL (E-85) E-85 is a mixture of approximately 85% fuel ethanol and 15% unleaded gasoline.

WARNING!

Ethanol vapors are extremely flammable and could cause serious personal injury. Never have any smok- ing materials lit in or near the vehicle when remov- ing the fuel filler tube cap (gas cap) or filling the tank. Do not use E-85 as a cleaning agent and never use it near an open flame.

Fuel Requirements Your vehicle will operate on both unleaded gasoline with an octane rating of 87, or E-85 fuel, or any mixture of these two.

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For best results, a refueling pattern that alternates be- tween E-85 and unleaded gasoline should be avoided. When you do switch fuels, it is recommended that you: † do not switch when the fuel gauge indicates less than † do not add less than 5 gal (19 L) when refueling † operate the vehicle immediately after refueling for a

1/4 full

period of at least five minutes

Observing these precautions will avoid possible hard starting and/or significant deterioration in drivability during warm-up. NOTE: When the ambient temperature is above 90°F (32°C), you may experience hard starting and rough idle following startup, even if the above recommendations are followed.

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Selection Of Engine Oil For Flexible Fuel Vehicles (E-85) and Gasoline Vehicles Flexible Fuel Vehicles (FFV) vehicles operated on E-85
require specially formulated engine oils. These special requirements are included in Mopart engine oils, and in equivalent oils meeting DaimlerChrysler Specification MS-6395. The manufacturer only recommends engine oils that are API Certified and meet the requirements of Material Standard MS-6395. MS-6395 contains additional requirements, developed during extensive fleet testing, to provide additional protection to DaimlerChrysler Corporation engines. Use Mopart or an equivalent oil meeting the specification MS-6395. Starting The characteristics of E-85 fuel make it unsuitable for use when ambient temperatures fall below 0° F (-18° C). In the range of 0° F (-18° C) to 32° F (0° C), you may experience an increase in the time it takes for your engine

to start, and a deterioration in drivability (sags and/or hesitations) until the engine is fully warmed up.

CAUTION!

Do not use ethanol mixture greater than 85% in your vehicle. It will cause difficulty in cold starting and may affect drivability.

Cruising Range Because E-85 fuel contains less energy per gallon/liter than gasoline, you will experience an increase in fuel consumption. You can expect your miles per gallon (mpg)/miles per liter and your driving range to decrease by about 30%, compared to gasoline operation.

Replacement Parts Many components in your Flexible Fuel Vehicle (FFV) are designed to be compatible with ethanol. Always be sure that your vehicle is serviced with correct ethanol com- patible parts.

CAUTION!

Replacing fuel system components with non-ethanol compatible components can damage your vehicle.

VEHICLE LOADING

Certification Label As required by National Highway Traffic Safety Admin- istration regulations, your vehicle has a certification label affixed to the driver’s side door or pillar. This label contains the month and year of manufacture, Gross Vehicle Weight Rating (GVWR), Gross Axle Weight

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Rating (GAWR) front and rear, and Vehicle Identification Number (VIN). A Month-Day-Hour (MDH) number is included on this label and indicates the Month, Day and Hour of manufacture. The bar code that appears on the bottom of the label is your Vehicle Identification Number (VIN). Gross Vehicle Weight Rating (GVWR) The GVWR is the total permissible weight of your vehicle including driver, passengers, vehicle, options and cargo. The label also specifies maximum capacities of front and rear axle systems (GAWR). Total load must be limited so GVWR and front and rear GAWR are not exceeded. Payload The payload of a vehicle is defined as the allowable load weight a truck can carry, including the weight of the driver, all passengers, options and cargo.

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Gross Axle Weight Rating (GAWR) The GAWR is the maximum permissible load on the front and rear axles. The load must be distributed in the cargo area so that the GAWR of each axle is not exceeded. Each axle GAWR is determined by the components in the system with the lowest load carrying capacity (axle, springs, tires or wheels). Heavier axles or suspension components sometimes specified by purchasers for in-