2007 Jeep Commander Owners Manual

selections identify intermediate modes that allow the occupants to fine tune airflow distribution.

Defrost

Air is directed to the windshield through the outlets at the base of the windshield. Air is also directed to the front door windows through the side window demister grilles. Some airflow is delivered to the floor while in defrost so that comfort can be maintained. Defrost/Floor

Air flows through the front and rear floor outlets and the outlets at the base of the windshield. Air is also directed to the front door windows through the side window demister grilles. Some airflow is delivered to the floor while in defrost so that comfort can be maintained. Floor

Air flows through the floor outlets located under the instrument panel and into the rear seating area through vents under the front seats. Some airflow is delivered to defrost while in the floor mode so that comfort can be maintained.

Bi-Level

Air flows both through the outlets located in the instrument panel and those located on the floor. Air flows through the registers in the back of the center console, and under the front seats to the rear seat passengers. These registers can be closed to partially block airflow. The center console outlets deliver condi- tioned air while the floor outlets deliver heated air. Panel

Air flows through the outlets located in the instru- ment panel. Air flows through the registers in the back of the center console to the rear seat passengers. These registers can be closed to block airflow.

UNDERSTANDING YOUR INSTRUMENT PANEL 235

Recirculation

The recirculation feature can be selected with the mode control knob. You may choose be- tween Bi-Level Recirculation and Panel Recir- culation air outlets while in this mode. Nor- mally, air enters from outside the vehicle. However, when in Recirculation mode air inside the vehicle is re-used. Use this mode to rapidly cool the inside of the vehicle. The Recirculation mode can also be used to temporarily block out outside odors, smoke, and dust. Air Conditioning Operation

To turn on the Air Conditioning, set the fan control at any speed and press the snowflake button located on the control panel. Conditioned air will be directed through the outlets selected by the mode control. A light in the snowflake button shows that the air conditioning is on.

236 UNDERSTANDING YOUR INSTRUMENT PANEL

Slight changes in engine speed or power may be noticed when the air conditioning compressor is on. This is a normal occurrence as the compressor will cycle on and off to maintain comfort and increase fuel economy. Automatic Temperature Control — If Equipped The Infrared Dual-Zone Climate Control System auto- matically maintains the interior comfort level desired by the driver and passenger. This is accomplished by a dual sun-sensor in the top of the instrument panel, and an infrared sensor located in the face of the control unit. There are also various sensors monitored by this system which take account for vehicle speed, A/C pressure, outside temperature, and engine cooling temperature. The infrared sensor independently measures the surface temperature of the driver and passenger. Based on the sensor input, the system automatically adjusts the air flow temperature, the air flow volume, and amount of outside air recirculation. This maintains a comfortable temperature even under changing conditions.

Automatic Temperature Controls

NOTE: The numbers on the temperature dial represent a comfort setting when the Mode knob is set to Auto, and not the actual air temperature. Operation of the system is quite simple. Begin by turning the right mode knob to AUTO, and place the blower control (left knob) to either LO AUTO or HI AUTO. The

LO AUTO position should be used for front seat occu- pants only. The HI AUTO position should be used when more air flow is desired, or when rear seat occupants are present. Dial in the comfort setting you would like the system to maintain by rotating the driver’s or passenger’s control knob. Once the comfort level is selected the system will maintain that level automatically using the heating system. Should the desired comfort level require air conditioning, the system will automatically make the adjustment. You will experience the greatest efficiency by simply allowing the system to function automatically. Selecting the OFF position on the fan control stops the system completely. NOTE: The temperature setting can be adjusted at any time without affecting automatic control operation. How- ever, if the driver and/or passenger temperature knobs are set to the full hot or full cold positions, the air

UNDERSTANDING YOUR INSTRUMENT PANEL 237

temperature out of the ducts will be full hot or full cold respectively. With the temperature setting in these posi- tions, the system does not attempt automatic comfort control.

The air conditioning in this system is automatic. Pressing this button while in AUTO mode will cause the LED to flash three times and remain off. This indicates that the system is in AUTO and requesting the air conditioning is not necessary.

The system will automatically control recircu- lation. However, pressing this button will tem- porarily put the system in recirculation mode. This can be used when outside conditions such as smoke, odors, dust, or high humidity are present. This will cause the LED to illuminate.

238 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE: • The surface of the climate control panel, and the top center of the instrument panel should be kept free of debris due to the climate control sensor’s location. Mud on the windshield may also cause poor operation of this system. • To provide you with maximum comfort in the auto- matic mode, during cold start-ups the blower fan will remain off until the engine warms up. However, the fan will engage immediately if the defrost mode is selected or if you manually select a blower speed. • Under certain conditions (after the vehicle is turned off) the climate control system may recalibrate and a noise may be heard for 20 seconds. This is part of normal operation. • Most of the time, when in Automatic operation, you can temporarily put the system into recirculation mode by pressing the Recirc button. However, under

certain conditions in automatic the system is blowing air out of the defrost vents. When these conditions are present and the Recirc button is pressed the indicator will flash and remain off. This tells you that you are unable to go into recirculation mode at this time. If you would like to go to Recirculation mode, you must first move your mode knob to panel, panel/floor or floor, then hit the Recirc button. This feature will reduce the possibility of window fogging.

Manual Operation This system offers a full complement of manual override features which consist of Blower Preferred Automatic, Mode Preferred Automatic with Manual Air Temperature Control and Manual. This means the customer can over- ride the blower, mode and disable automatic temperature control completely. NOTE: Please read the Automatic Temperature Control Operation Chart below for details.

UNDERSTANDING YOUR INSTRUMENT PANEL 239

240 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE: Regardless of the type of operation, when a temperature knob is set to the full clockwise or full counterclockwise position, the system will deliver full hot or full cold air out of the ducts, respectively. The operator can override the AUTO mode setting and select the direction of the air by rotating the right mode knob to one of the following positions. When the Mode is set to any position other than AUTO, The automatic control of air temperature is disabled. The user must adjust the temperature knobs to obtain the desired tem- perature. • Defrost

Air is directed to the windshield through the outlets at the base of the windshield. Air is also directed to the front door windows through the side window demister grilles. Some airflow is delivered to the floor while in defrost so that comfort can be maintained.

NOTE: The defrost mode is not automatically selected. It must be manually selected, when desired. • Defrost/Floor

Air flows through the front and rear floor outlets and the outlets at the base of the windshield. Air is also directed to the front door windows through the side window demister grilles. Some air- flow is delivered to the floor while in defrost so that comfort can be maintained.

• Floor

• Bi-Level

Air flows through the floor outlets located under the instrument panel and into the rear seating area through vents under the front seats. Some airflow is delivered to defrost while in floor mode, so that comfort can be maintained.

Air flows both through the outlets located in the instrument panel and those located on the floor.

Air flows through the registers in the back of the center console, and under the front seats to the rear seat passengers. These registers can be closed to block airflow. The center console outlets deliver conditioned air while the floor outlets deliver heated air.

• Panel

Air flows through the outlets located in the in- strument panel. Air flows through the registers in the back of the center console to the rear seat passen- gers. These registers can be closed to block airflow.

Depress this button to turn on and off the air conditioning during manual operation only. Con- ditioned outside air is then directed through the outlets selected on the mode control dial. The button includes an LED that illuminates when manual operation is selected. NOTE: To manually control the air conditioning the mode selector must be moved out of the AUTO position.

UNDERSTANDING YOUR INSTRUMENT PANEL 241

This button can be used to block out smoke, odors, dust, high humidity, or if rapid cooling is desired. The recirculation mode should only be used temporarily. The button includes an LED that illuminates, which indicates that the recircula- tion mode is active. You may use this feature separately. NOTE: Extended use of recirculation may cause the windows to fog. If the interior of the windows begins to fog, press the “Recirculate” icon button to return to outside air. Some temp./humidity conditions will cause captured interior air to condense on windows and ham- per visibility. For this reason, the system will not allow “Recirculate” to be selected while in the defrost or defrost/floor modes. Attempting to use the recirculation while in these modes will cause the LED in the button to blink and then turn off.

242 UNDERSTANDING YOUR INSTRUMENT PANEL

Rear Climate Control — If Equipped The Manual Rear Climate Control system has one floor air outlet (passenger side), and two panel outlets in the rear quarter trim (on each side). The unit provides warm or cool air through the floor and upper outlets. If rear heating/cooling is desired, press the “Rear On/Off Switch” (located in the upper switch bank above the controls) and select “Floor” “Bi-Level” or “Panel” from the Rear Control Panel (right knob located on the right rear quarter trim panel).

Rear On/Off Switch

The rear temperature, blower speed, and mode control can be adjusted as desired by the third row seat occupants.

Rear Control Panel

NOTE: The rear climate control system cannot be con- trolled from the front seat; it can only be turned on and off. All control of the rear system must be performed by the rear occupants.

UNDERSTANDING YOUR INSTRUMENT PANEL 243

Rear Blower Control The left knob on the Rear Control Panel has four posi- tions, “Off”, and a range of three blower speeds. This allows the third row seat occupants to control the volume of air circulated in the rear of the vehicle.

CAUTION!

Interior air enters the Manual Rear Zone Climate Control system through an intake grille located in the passenger side trim panel behind the third seat. The heater outlets are located in the passenger side trim panel just behind the sliding door. Do not block or place objects directly in front of the inlet grille or heater outlets. The electrical system could overload causing damage to the blower motor.

244 UNDERSTANDING YOUR INSTRUMENT PANEL

Rear Temperature Control The center knob on the Rear Control Panel allows the third row seat occupants to have control of the rear temperature as follows: • When the temperature knob is in the cold (Blue) position, cold air will be delivered from the outlets. As the temperature knob is turned towards the hot (Red) position, the air will get warmer.

Rear Mode Control • Floor

Air flows through the floor outlet located on the right side of the rear floor into the rear seating area.

• Bi-Level

Air flows through both the outlets located in the rear quarter trim panels, and the one located on the floor. The rear quarter trim panel outlets can be closed to block airflow.

• Panel

Air flows through the outlets located in the rear quarter trim panels. These registers can be closed

to block airflow.

Operating Tips

Window Fogging Windows will fog on the inside when the humidity inside the vehicle is high. This often occurs in mild or cool temperatures when it’s rainy or humid. In most cases turning on the Air-conditioning (pressing the snowflake button) will clear the fog. Adjust the temperature control, air direction and blower speed to maintain comfort. As the temperature gets colder it may be necessary to direct air onto the windshield. Adjust the temperature control and blower speed to maintain comfort. Higher blower speeds will reduce fogging. Interior fogging on the windshield can be quickly removed by selecting the defrost mode.

Regular cleaning of the inside of the windows with a non-filming cleaning solution (vinegar and water works very well) will help prevent contaminates (cigarette smoke, perfumes, etc.) from sticking to the windows. Contaminates increase the rate of window fogging. Summer Operation Air conditioned vehicles must be protected with a high quality antifreeze coolant during summer to provide proper corrosion protection and to raise the boiling point of the coolant for protection against overheating. A 50 % concentration is recommended. Refer to Recommended Fluids and Genuine Parts for the proper coolant type. When using the air conditioner in extremely heavy traffic in hot weather especially when towing a trailer, addi- tional engine cooling may be required. If this situation is encountered, operate the transmission in a lower gear to increase engine RPM, coolant flow and fan speed. When stopped in heavy traffic, it may be necessary to shift into

UNDERSTANDING YOUR INSTRUMENT PANEL 245

N (Neutral) and depress the accelerator slightly for fast idle operation to increase coolant flow and fan speed. Your air conditioning system is also equipped with an automatic recirculation system. When the system senses a heavy load or high heat conditions, it may use partial Recirculation A/C mode to provide additional comfort. Winter Operation When operating the system during the winter months, make sure the air intake, located directly in front of the windshield, is free of ice, slush, snow, or other obstruc- tions. Vacation Storage Anytime you store your vehicle, or keep it out of service (i.e. vacation) for two weeks or more, run the air condi- tioning system at idle for about five minutes in the fresh air and high blower setting. This will insure adequate system lubrication to minimize the possibility of com- pressor damage when the system is started again.

246 UNDERSTANDING YOUR INSTRUMENT PANEL

Operating Tips Chart

STARTING AND OPERATING

CONTENTS

䡵 Starting Procedures . . . . . . . . . . . . . . . . . . . . . 251
▫ Normal Starting . . . . . . . . . . . . . . . . . . . . . . 251
▫ Extreme Cold Weather (Below –20°F (–29°C) . . 252
▫ If Engine Fails To Start . . . . . . . . . . . . . . . . . 252
▫ After Starting . . . . . . . . . . . . . . . . . . . . . . . . 254
䡵 Engine Block Heater — If Equipped . . . . . . . . . 255
䡵 Automatic Transmission . . . . . . . . . . . . . . . . . . 255
▫ Brake/Transmission Interlock System . . . . . . . 256
▫ 5–Speed Automatic Transmission . . . . . . . . . . 256

▫ Gear Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 257
▫ Rocking The Vehicle . . . . . . . . . . . . . . . . . . . 263
䡵 Four-Wheel Drive Operation . . . . . . . . . . . . . . . 264

▫ Quadra-Trac I威 Operating

Instructions/Precautions — If Equipped . . . . . 264

▫ Quadra-Trac II威 Operating

Instructions/Precautions — If Equipped . . . . . 264
▫ Shift Positions . . . . . . . . . . . . . . . . . . . . . . . . 265
▫ Shifting Procedures . . . . . . . . . . . . . . . . . . . . 266
▫ Quadra-Drive II威 System — If Equipped . . . . . 269

248 STARTING AND OPERATING

䡵 On-Road Driving Tips . . . . . . . . . . . . . . . . . . . 269
䡵 Off-Road Driving Tips . . . . . . . . . . . . . . . . . . . 270

▫ When To Use 4WD Low Range —

If Equipped . . . . . . . . . . . . . . . . . . . . . . . . . 270
▫ Driving Through Water . . . . . . . . . . . . . . . . . 270
▫ Driving In Snow, Mud And Sand . . . . . . . . . . 271
▫ Hill Climbing . . . . . . . . . . . . . . . . . . . . . . . . 271
▫ Traction Downhill . . . . . . . . . . . . . . . . . . . . . 272
▫ After Driving Off-Road . . . . . . . . . . . . . . . . . 273
䡵 Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 274
䡵 Anti-Lock Brake System . . . . . . . . . . . . . . . . . . 275
䡵 Power Steering . . . . . . . . . . . . . . . . . . . . . . . . 278
䡵 Multi Displacement System (MDS) - 5.7L Engine

Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

䡵 Tire Safety Information . . . . . . . . . . . . . . . . . . . 280
▫ Tire Markings . . . . . . . . . . . . . . . . . . . . . . . . 280
▫ Tire Identification Number (TIN) . . . . . . . . . . 283
▫ Tire Loading And Tire Pressure . . . . . . . . . . . 284
䡵 Tires — General Information . . . . . . . . . . . . . . . 288
▫ Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . 288
▫ Tire Inflation Pressures . . . . . . . . . . . . . . . . . 289
▫ Tire Pressures For High Speed Operation . . . . 291
▫ Radial-Ply Tires . . . . . . . . . . . . . . . . . . . . . . 291
▫ Tire Spinning . . . . . . . . . . . . . . . . . . . . . . . . 291
▫ Tread Wear Indicators . . . . . . . . . . . . . . . . . . 292
▫ Life Of Tire . . . . . . . . . . . . . . . . . . . . . . . . . 293
▫ Replacement Tires . . . . . . . . . . . . . . . . . . . . . 293

▫ Alignment And Balance . . . . . . . . . . . . . . . . . 294
䡵 Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
䡵 Tire Rotation Recommendations . . . . . . . . . . . . 296
䡵 Tire Pressure Monitor System (TPMS) . . . . . . . . 297
▫ Base System — If Equipped . . . . . . . . . . . . . . 298
▫ Premium System — If Equipped . . . . . . . . . . 301
▫ General Information . . . . . . . . . . . . . . . . . . . 306
䡵 Fuel Requirements . . . . . . . . . . . . . . . . . . . . . . 307
▫ 3.7/4.7L Engines (If Equipped) . . . . . . . . . . . . 307
▫ 5.7L Engines (If Equipped) . . . . . . . . . . . . . . . 307
▫ Reformulated Gasoline . . . . . . . . . . . . . . . . . 308
▫ Gasoline/Oxygenate Blends . . . . . . . . . . . . . . 308
▫ MMT In Gasoline . . . . . . . . . . . . . . . . . . . . . 309

STARTING AND OPERATING 249

▫ Materials Added To Fuel . . . . . . . . . . . . . . . . 309
▫ Fuel System Cautions . . . . . . . . . . . . . . . . . . 310
▫ Carbon Monoxide Warnings . . . . . . . . . . . . . . 310
䡵 Flexible Fuel (4.7L Only) — If Equipped . . . . . . 311
▫ E-85 General Information . . . . . . . . . . . . . . . . 311
▫ Ethanol Fuel (E-85) . . . . . . . . . . . . . . . . . . . . 312
▫ Fuel Requirements . . . . . . . . . . . . . . . . . . . . 312
▫ Selection Of Engine Oil For Flexible Fuel

Vehicles (E-85) And Gasoline Vehicles . . . . . . . 313
▫ Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
▫ Cruising Range . . . . . . . . . . . . . . . . . . . . . . . 313
▫ Replacement Parts . . . . . . . . . . . . . . . . . . . . . 313
▫ Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 314

250 STARTING AND OPERATING

䡵 Adding Fuel

▫ Fuel Filler Cap (Gas Cap)

. . . . . . . . . . . . . . . . . . . . . . . . . . 314
. . . . . . . . . . . . . . . 314
䡵 Vehicle Loading . . . . . . . . . . . . . . . . . . . . . . . . 317
▫ Certification Label . . . . . . . . . . . . . . . . . . . . . 317
䡵 Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 319
▫ Common Towing Definitions . . . . . . . . . . . . . 319
▫ Trailer Hitch Classification . . . . . . . . . . . . . . . 323
▫ Trailer Towing Weights

(Maximum Trailer Weight Ratings) . . . . . . . . . 324
. . . . . . . . . . . . . . 326

▫ Trailer And Tongue Weight

▫ Towing Requirements . . . . . . . . . . . . . . . . . . 327
▫ Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 331
䡵 Recreational Towing (Behind Motorhome, Etc.) . . 333
▫ Towing – 2WD Models . . . . . . . . . . . . . . . . . 333
▫ Towing — Quadra-Trac I

(Single-Speed Transfer Case) 4WD Models . . . . 333

▫ Towing — Quadra–Trac II /Quadra–Drive II

4WD Models

. . . . . . . . . . . . . . . . . . . . . . . . 333
䡵 Snow Plow . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

STARTING AND OPERATING 251

Start the engine with the gear selector in the N (Neutral) or P (Park) position. Apply the brakes before shifting to any driving gear. Normal Starting Do not press the accelerator. Turn the ignition key briefly to START position, and release it. The starter motor will continue to run, but will automatically disengage itself when the engine is running.

STARTING PROCEDURES Before starting your vehicle, adjust your seat, adjust both inside and outside mirrors, and fasten your seat belts.

CAUTION!

Long periods of engine idling, especially at high engine speeds can cause excessive exhaust tempera- tures which can damage your vehicle. Do not leave your vehicle unattended with the engine running.

WARNING!

Do not leave children or animals inside parked vehicles in hot weather. Interior heat build up may cause serious injury or death.

252 STARTING AND OPERATING

NOTE: The starter motor may run up to 30 seconds in very cold conditions until the engine is started. The starter can be disengaged by turning the ignition key to the OFF position, if required.

Ignition Key Positions

Extreme Cold Weather (below –20°F (–29°C) To insure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended. If Engine Fails to Start If the engine fails to start after you have followed the “Normal Starting” or “Extreme Cold Weather” proce- dures, it may be flooded. Push the accelerator pedal all the way to the floor and hold it there while cranking the engine. This should clear any excess fuel in case the engine is flooded.

CAUTION!

To prevent damage to the starter, do not crank the engine for more than 15 seconds at a time. Wait 10 to 15 seconds before trying again.

WARNING!

WARNING!

STARTING AND OPERATING 253

Never pour fuel or other flammable liquids into the throttle body air inlet opening in an attempt to start the vehicle. This could result in a flash fire causing serious personal injury.

Do not attempt to push or tow your vehicle to get it started. Vehicles equipped with an automatic trans- mission cannot be started this way. Unburned fuel could enter the catalytic converter and once the engine has started, ignite and damage the converter and vehicle. If the vehicle has a discharged battery, booster cables may be used to obtain a start from a booster battery or the battery in another vehicle. This type of start can be dangerous if done improperly. Refer to Section 6 of this manual for proper jump starting procedures and follow them carefully.

254 STARTING AND OPERATING

If the engine has been flooded, it may start to run, but not have enough power to continue running when the key is released. If this occurs, continue cranking with the accel- erator pedal pushed all the way to the floor. Release the accelerator pedal and the key once the engine is running smoothly. If the engine shows no sign of starting after two 15– second periods of cranking with the accelerator pedal held to the floor, the “Normal Starting” or “Extreme Cold Weather” procedures should be repeated. After Starting The idle speed will automatically decrease as the engine warms up.

CAUTION!

Long periods of engine idling, especially at high engine speeds can cause excessive exhaust tempera- tures which can damage your vehicle. Do not leave your vehicle unattended with the engine running.

WARNING!

Do not leave children or animals inside parked vehicles in hot weather. Interior heat build up may cause serious injury or death.

ENGINE BLOCK HEATER — IF EQUIPPED The engine block heater warms engine coolant and permits quicker starts in cold weather. Connect the cord to a standard 110-115 volt AC electrical outlet with grounded, three wire extension cord. Use the heater when temperatures below 0°F (-18°C) are expected to last for several days. The engine block heater cord is located: • 3.7L/4.7L Engine — coiled and strapped to the engine • 5.7L Engine — bundled and fastened to the injector

oil dipstick tube.

harness.

WARNING!

Remember to disconnect the cord before driving. Damage to the 110-115 volt AC electrical cord could cause electrocution.

STARTING AND OPERATING 255

AUTOMATIC TRANSMISSION

CAUTION!

to a complete stop.

Damage to the transmission may occur if the follow- ing precautions are not observed: • Shift into P (Park) only after the vehicle has come • Shift into or out of R (Reverse) only after the vehicle has come to a complete stop and the engine is at idle speed. • Do not shift from R (Reverse), P (Park), or N (Neutral) into any forward gear when the engine is above idle speed. • Before shifting into any gear, make sure your foot

is firmly on the brake pedal.

256 STARTING AND OPERATING

WARNING!

It is dangerous to shift the selector lever out of P (Park) or N (Neutral) if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your foot is firmly on the brake pedal.

Brake/Transmission Interlock System This system prevents you from moving the gear shift out of P (Park) and into any gear unless the brake pedal is pressed. This system is active only while the ignition switch is in the ON position. Always depress the brake pedal first, before moving the gear selector out of P (Park).

5–Speed Automatic Transmission The electronically controlled transmission provides a precise shift schedule. The transmission electronics are self-calibrating; therefore, the first few shifts on a new vehicle, may be somewhat abrupt. This is a normal condition, and precision shifts will develop within a few hundred miles.

Automatic Shift Controls

Gear Ranges

NOTE: After selecting any gear range, wait a moment to allow the selected gear to engage before accelerating. This is especially important when the engine is cold. If there is a need to restart the engine be sure to cycle the key to the LOCK position before restarting. Transmission gear engagement may be delayed after restarting the engine if the key is not cycled to the LOCK position first. P (Park) This gear position supplements the parking brake by locking the transmission. The engine can be started in this range. Never use P (Park) while the vehicle is in motion. Apply the parking brake when leaving the vehicle in this range. Always apply parking brake first, then place the selector in P (Park) position.

STARTING AND OPERATING 257

WARNING!

Never use P (Park) position as a substitute for the parking brake. Always apply parking brake fully when parked to guard against vehicle movement and possible injury or damage.

WARNING!

It is dangerous to shift the selector lever out of P (Park) or N (Neutral) if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal.

258 STARTING AND OPERATING

R (Reverse) Use this range only after the vehicle has come to a complete stop. N (Neutral) Shift into N (Neutral) when the vehicle is standing for prolonged periods with the engine running. The engine may be started in this range. Set the parking brake if you must leave the vehicle. NOTE: Towing the vehicle, coasting, or driving for any other reason with selector lever in N (Neutral) can result in severe transmission damage. Refer to “Recreational Towing” in Section 5 and “Towing a Disabled Vehicle” in Section 6 of this manual. D (Drive) The transmission automatically upshifts through fifth gear. The D (Drive) position provides optimum driving characteristics under all normal operating conditions.

Electronic Range Select (ERS)Operation The Electronic Range Select (ERS) shift control allows you to move the shifter left (-) or right (+) when the shifter is in the D (Drive) position, allowing the selection of the desired top gear. For example, if the driver shifts the transmission into 3 (third gear), the transmission will never shift above third gear, but can shift down to 2
(second) or 1 (first), when needed. On vehicles equipped with 4.7L or 5.7L engines, use of ERS (or Tow/Haul mode) also enables a additional underdrive gear which is not normally used during through-gear accelerations. This additional grade im- proves vehicle performance and cooling capability when towing a trailer on certain grades. In ERS mode (on all transmissions), 1st through 3rd gear are underdrive gears and 4th gear is direct drive. ERS 5th gear (Overdrive) is the same as the normal 4th gear.

WARNING!

Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid.

1-5

1-4

1-3

5* 1-5

1-2

Screen Display Actual Gear(s) Allowed * Applies to vehicles equipped with 4.7L/5.7L engines only. NOTE: To select the proper gear position for maximum deceleration (engine braking), move the shift lever to the left “D(-)” and hold it there. The transmission will shift to the range from which the vehicle can best be slowed down.

STARTING AND OPERATING 259

Overdrive Operation The automatic transmission includes an electronically controlled Overdrive (5th gear for 3.7L engine, 4th and 5th gears for 4.7L and 5.7L engines). The transmission will automatically shift from direct gear to Overdrive if the following conditions are present: • the transmission selector is in D (Drive); • the engine coolant has reached normal operating tem- • vehicle speed is above approximately 30 mph (48
• the “TOW/HAUL” button has not been activated; • transmission has reached normal operating tempera-

perature;

km/h);

ture.

260 STARTING AND OPERATING

If the vehicle is started in extremely cold tem- NOTE: peratures, the transmission may not shift into Overdrive and will automatically select the most desirable gear for operation at this temperature. Normal operation will resume when the transmission fluid temperature has risen to a suitable level. Refer also to the Note under torque converter clutch, later in this section. During cold temperature operation you may notice de- layed upshifts depending on engine and transmission temperature. This feature improves the warm up time of the engine and transmission. If the transmission temperature gets extremely hot, the transmission will automatically select the most desirable gear for operation at this temperature. If the transmission temperature becomes hot enough, the “TRANSMISSION OVER TEMP” message may display and the transmis- sion may downshift out of Overdrive until the transmis- sion cools down. After cooldown, the transmission will resume normal operation.

In high ambient temperatures with sustained high engine speed and load, an upshift followed shortly thereafter by a downshift may occur. This is a normal part of the overheat protection strategy when operating in the “Tow/Haul” mode. The transmission will downshift from Overdrive to the most desirable gear if the accelerator pedal is fully depressed at vehicle speeds above approximately 35 mph (56 km/h). When To Use “TOW/HAUL” Mode — If Equipped When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting oc- curs, press the “TOW/HAUL” button. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting. When operating in “TOW/HAUL” mode, the transmission will shift to direct gear and Overdrive will be enabled under steady cruise conditions.

STARTING AND OPERATING 261

Transmission Limp Home Mode Transmission function is monitored for abnormal condi- tions. If a condition is detected that could result in transmission damage, the transmission limp home mode will be engaged. In this mode, the transmission will remain in the current gear (3.7L engine) or in direct gear (4.7L and 5.7L engines) until the vehicle is brought to a stop. To reset the transmission, use the following procedure: 1. Stop the vehicle. 2. Move the shift lever to the P (Park) position. 3. Turn off the engine, be sure to turn the key to the LOCK position. 4. Wait approximately 10 seconds, then restart the en- gine. 5. Move the shift lever to the desired gear range.

Tow/Haul Button

The “TOW/HAUL” light will illuminate in the instru- ment cluster to indicate when the switch has been activated. Pressing the switch a second time restores normal operation. If the “TOW/HAUL” mode is desired, the switch must be pressed each time the engine is started.

262 STARTING AND OPERATING

If the problem is no longer detected, the transmission will return to normal operation. If the problem persists, P (Park), R (Reverse), and N (Neutral) will continue to operate. Only Second gear range will operate in the D (Drive) shifter position. Have the transmission checked at your authorized dealer as soon as possible. Torque Converter Clutch A feature, designed to improve fuel economy, has been included in the automatic transmission on your vehicle. A clutch within the torque converter engages automati- cally at a calibrated speed at light throttle. It engages at higher speeds under heavier acceleration. This may re- sult in a slightly different feeling or response during normal operation in high gear. When the vehicle speed drops below a calibrated speed, or during acceleration, the clutch automatically and smoothly disengages. The feature is operational in Overdrive and in Drive.

NOTE: The torque converter clutch will not engage until the transmission fluid and engine coolant are warm [usually after 1-3 miles (1.6 - 4.8 km) of driving]. Because the engine speed is higher when the torque converter clutch is not engaged, it may seem as if the transmission is not shifting into Overdrive when cold. This is normal. Manually shifting (using the ERS shift control) between 4
(direct gear) and 5/D (Overdrive gear) positions will demonstrate that the transmission is able to shift into and out of Overdrive. If the vehicle has not been driven in several NOTE: days, the first few seconds of operation after shifting the transmission into gear may seem sluggish. This is due to the fluid partially draining from the torque converter into the transmission. This condition is normal and will not cause damage to the transmission. The torque converter will refill within five seconds of shifting from Park into any other gear position.

STARTING AND OPERATING 263

five rocking-motion cycles. This will minimize overheat- ing and reduce the risk of transmission failure during prolonged efforts to free a stuck vehicle.

CAUTION!

When “rocking” a stuck vehicle by moving between “First” and R (Reverse), do not spin the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.

Rocking the Vehicle If the vehicle becomes stuck in snow, sand, or mud, it can often be moved by a rocking motion. Move the gear selector rhythmically between D (Drive) and R (Reverse), while applying slight pressure to the accelerator. NOTE: The Electronic Stability Program (ESP) and Traction Control (if equipped) should be turned OFF before attempting to rock the vehicle. Refer to Section 3 of this manual. The least amount of accelerator pedal pressure to main- tain the rocking motion without spinning the wheels or racing the engine is most effective. Racing the engine or spinning the wheels, due to the frustration of not freeing the vehicle, may lead to transmission overheating and failure. Allow the engine to idle with the transmission selector in N (Neutral) for at least one minute after every

264 STARTING AND OPERATING

FOUR-WHEEL DRIVE OPERATION

convenient

case which provides

Quadra-Trac I姞 Operating Instructions/Precautions — If Equipped The Quadra-Trac I威 is a single speed (HI range only) transfer full-time 4–wheel drive. No driver interaction is required. This transfer case divides engine torque almost evenly with 48
percent of engine torque to the front axle and 52 percent of engine torque to the rear axle. The Brake Traction Control System (BTC), which combines standard ABS and Traction Control, provides resistance to any wheel that is slipping to allow additional torque transfer to wheels with traction. NOTE: The Quadra-Trac I威 system is not appropriate for conditions where LOW range is recommended. Refer to “Off-Road Driving Tips” in this section.

Quadra-Trac II姞 Operating Instructions/Precautions — If Equipped The Quadra-Trac II威 transfer case is fully automatic in the normal driving 4 HI mode. The Quadra-Trac II威 transfer case provides three mode positions — four wheel drive high range, neutral, and four wheel drive low range. This transfer case is fully automatic in the 4 HI mode. This transfer case divides engine torque almost evenly with 48 percent of engine torque to the front axle and 52
percent of engine torque to the rear axle. When speed differences are increased between the front and rear drive shafts, the transfer case can transmit up to 100 percent of available engine torque to the front or rear drive shafts. When additional traction is required, the 4 LOW position can be used to lock the front and rear driveshafts together and force the front and rear wheels to rotate at the same speed. The 4 LOW position is intended for loose, slippery

road surfaces only. Driving in the 4 LOW position on dry hard surfaced roads may cause increased tire wear and damage to driveline components. When operating your vehicle in 4 LOW, the engine speed is approximately three times that of the 4 HI position at a given road speed. Take care not to overspeed the engine and do not exceed 25 mph (40 km/h). Proper operation of four wheel drive vehicles depends on tires of equal size, type, and circumference on each wheel. Any difference will adversely affect shifting and cause damage to the transfer case. Because four wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.

STARTING AND OPERATING 265

WARNING!

You or others could be injured if you leave the vehicle unattended with the transfer case in the N (Neutral) position without first fully engaging the parking brake. The transfer case N (Neutral) position disengages both the front and rear driveshafts from the powertrain and will allow the vehicle to move regardless of the transmission position. The parking brake should always be applied when the driver is not in the vehicle.

Shift Positions

For additional information on the appropriate use of each transfer case mode position, see the information below: 4 HI Four Wheel Drive High Range — All roads surfaces such as ice, snow, gravel, sand, and dry hard pavement.

266 STARTING AND OPERATING

N (Neutral) Neutral — Disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle. Refer to “Recreational Towing” in Sec- tion 5 of this manual. 4 LOW Four 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).

Shifting Procedures

4 HI to 4 LOW With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), key ON or engine running, shift the transmission into N (Neutral), and raise the transfer case T-handle. “The 4WD LOW Indicator Lamp” in the instrument cluster will begin to flash and remain on solid when the shift is complete. Release the T-handle. If shift conditions/interlocks are not met, or a NOTE: transfer case motor temperature protection condition exists, a “CHECK SHIFT PROCEDURES” message will flash from the EVIC (Electronic Vehicle Information Cen- ter). Refer to “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual. (See page 184 for more information.)

STARTING AND OPERATING 267

LOW Indicator Lamp” in the instrument cluster will flash and go out when the shift is complete. Release the T-handle. If shift conditions/interlocks are not met, or a NOTE: transfer case motor temperature protection condition exists, a “CHECK SHIFT PROCEDURES” message will flash from the EVIC (Electronic Vehicle Information Cen- ter). Refer to “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual. (See page 184 for more information.) NOTE: Shifting into or out of 4WD LOW is possible with the vehicle completely stopped, however difficulty may occur due to the mating clutch teeth not being properly aligned. Several attempts may be required for clutch teeth alignment and shift completion to occur. The preferred method is with the vehicle rolling 0 to 3 mph (0
to 5 km/h). If the vehicle is moving faster than 3 mph (5
km/h), the transfer case will not allow the shift.

Shifter T-Handle

4 LOW to 4 HI With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h), key ON or engine running, shift the transmission into N (Neutral), and raise the transfer case T-handle. The “4WD

268 STARTING AND OPERATING

Neutral (N) Shift Procedure 1. Key ON, engine off. 2. Vehicle stopped, with foot on brake. 3. Place transmission in N (Neutral). 4. Hold down N (Neutral) “pin” switch (with a pen, etc.) for 4 seconds until the LED lamp by the switch starts to blink indicating shift in progress. Lamp will stop blinking (stay on solid) when Neutral shift is complete. A “4WD SYSTEM IN NEUTRAL” message will display on the EVIC (Electronic Vehicle Information Center). Refer to “Electronic Vehicle Information Center (EVIC)” in Sec- tion 4 of this manual. (See page 184 for more informa- tion.)

Neutral Switch

5. Repeat Steps 1– 4 to shift out of Neutral. If shift conditions/interlocks are not met, a NOTE: “CHECK SHIFT PROCEDURES” message will flash from the EVIC (Electronic Vehicle Information Center). Refer to “Electronic Vehicle Information Center (EVIC)” in Section 4
of this manual. (See page 184 for more information.)

Quadra-Drive II姞 System — If Equipped The optional Quadra-Drive II威 System features three torque transfer couplings. The couplings include ELSD (Electronic Limited Slip Differential) front and rear axles and Quadra-Trac II威 transfer case. The optional ELSD axles are fully automatic and require no driver input to operate. Under normal driving conditions the units func- tion as standard axles balancing torque evenly between left and right wheels. With a traction difference between left and right wheels the coupling will sense a speed difference. As one wheel begins to spin faster than the other, torque will automatically transfer from the wheel that has less traction to the wheel that has traction. While the transfer case and axle couplings differ in design, their operation is similar. Follow the Quadra-Trac II威 transfer case shifting information, preceding this section, for shifting this system.

STARTING AND OPERATING 269

ON-ROAD DRIVING TIPS Utility vehicles have higher ground clearance and a narrower track to make them capable of performing in a wide variety of off-road applications. Specific design characteristics give them a higher center of gravity than ordinary cars. An advantage of the higher ground clearance is a better view of the road, allowing you to anticipate problems. They are not designed for cornering at the same speeds as conventional 2-wheel drive vehicles any more than low- slung sports cars are designed to perform satisfactorily in off-road conditions. If at all possible, avoid sharp turns or abrupt maneuvers. As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or vehicle rollover.

270 STARTING AND OPERATING

OFF-ROAD DRIVING TIPS

NOTE: Prior to off-road driving, remove the front air dam to prevent damage. The front air dam is attached to the lower front fascia with quarter turn fasteners, and can be removed by hand. When To Use 4WD LOW Range — If Equipped When off-road driving, shift to 4WD LOW for additional traction. This range should be limited to extreme situa- tions such as deep snow, mud, or sand where additional low speed pulling power is needed. Vehicle speeds in excess of 25 mph (40 km/h) should be avoided when in 4WD LOW range. Driving Through Water Although your vehicle is capable of driving through water, there are a number of precautions that must be considered before entering the water:

CAUTION!

When driving through water, do not exceed 5 mph (8
km/h). Always check water depth before entering as a precaution, and check all fluids afterward. Driving through water may cause damage that may not be covered by the new vehicle limited warranty.

Driving through water more than a few inches deep will require extra caution to ensure safety and prevent dam- age to your vehicle. If you must drive through water, try to determine the depth and the bottom condition (and location of any obstacles) prior to entering. Proceed with caution and maintain a steady controlled speed less than 5 mph (8 km/h) in deep water to minimize wave effects. Flowing Water If the water is swift flowing and rising (as in storm run-off) avoid crossing until the water level recedes

and/or the flow rate is reduced. If you must cross flowing water avoid depths in excess of 9 inches. The flowing water can erode the streambed causing your vehicle to sink into deeper water. Determine exit point(s) that are downstream of your entry point to allow for drifting. Standing Water Avoid driving in standing water deeper than 20 inches, and reduce speed appropriately to minimize wave ef- fects. Maximum speed in 20 inches of water is less than 5
mph (8 km/h). Maintenance After driving through deep water, inspect your vehicle fluids and lubricants (engine oil, transmission oil, axle, transfer case) to assure the fluids have not been contami- nated. Contaminated fluid (milky, foamy in appearance) should be flushed/changed as soon as possible to pre- vent component damage.

STARTING AND OPERATING 271

Driving In Snow, Mud and Sand In heavy snow, when pulling a load, or for additional control at slower speeds, shift the transmission to a low gear and shift the transfer case to 4WD LOW if necessary. Refer to “Four-Wheel Drive Operation” in this section. Do not shift to a lower gear than necessary to maintain headway. Over-revving the engine can spin the wheels and traction will be lost. Avoid abrupt downshifts on icy or slippery roads, be- cause engine braking may cause skidding and loss of control. Hill Climbing

NOTE: Before attempting to climb a hill, determine the conditions at the crest and/or on the other side. Before climbing a steep hill, shift the transmission to a lower gear and shift the transfer case to 4WD LOW. Use first gear and 4WD LOW for very steep hills.

272 STARTING AND OPERATING

If you stall or begin to lose headway while climbing a steep hill, allow your vehicle to come to a stop and immediately apply the brakes. Restart the engine and shift to R (Reverse). Back slowly down the hill allowing the compression braking of the engine to help regulate your speed. If the brakes are required to control vehicle speed, apply them lightly and avoid locking or skidding the tires.

WARNING!

If the engine stalls or you lose headway or cannot make it to the top of a steep hill or grade, never attempt to turn around. To do so may result in tipping and rolling the vehicle. Always back care- fully straight down a hill in R (Reverse) gear. Never back down a hill in N (Neutral) using only the brake.

Remember, never drive diagonally across a hill-always drive straight up or down. If the wheels start to slip as you approach the crest of a hill, ease off the accelerator and maintain headway by turning the front wheels slowly. This may provide a fresh “bite” into the surface and will usually provide traction to complete the climb. Traction Downhill Shift the transmission into a low gear and the transfer case to 4WD LOW range. Let the vehicle go slowly down the hill with all four wheels turning against engine compression drag. This will permit you to control the vehicle speed and direction. When descending mountains or hills, repeated braking can cause brake fade with loss of braking control. Avoid repeated heavy braking by downshifting the transmis- sion whenever possible.

After Driving Off-Road Off-road operation puts more stress on your vehicle than does most on-road driving. After going off-road it is always a good idea to check for damage. That way you can get any problems taken care of right away and have your vehicle ready when you need it. • Completely inspect the underbody of your vehicle. Check tires, body structure, steering, suspension, and exhaust system for damage. • Check threaded fasteners for looseness, particularly on the chassis, drivetrain components, steering, and sus- pension. Retighten them, if required, and torque to the values specified in the Service Manual. • Check for accumulations of plants or brush. These things could be a fire hazard. They might hide damage to fuel lines, brake hoses, axle pinion seals, and propeller shafts.

STARTING AND OPERATING 273

• After extended operation in mud, sand, water, or similar dirty conditions, have brake rotors, wheels, brake linings, and axle yokes inspected and cleaned as soon as possible.

WARNING!

Abrasive material in any part of the brakes may cause excessive wear or unpredictable braking. You might not have full braking power when you need it to prevent an accident. If you have been operating your vehicle in dirty conditions, get your brakes checked and cleaned as necessary. • If you experience unusual vibration after driving in mud, slush or similar conditions, check the wheels for impacted material. Impacted material can cause a wheel imbalance and freeing the wheels of it will correct the situation.

274 STARTING AND OPERATING

PARKING BRAKE To set the parking brake, pull the lever up as firmly as possible. When the parking brake is applied with the ignition ON, the “Brake Warning Light” in the instru- ment cluster will light. To release the parking brake, pull up slightly, press the center button, then lower the lever completely. NOTE: The instrument cluster “Brake Warning Light” indicates only that the parking brake is applied. It does not indicate the degree of brake application.

Parking Brake

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

WARNING!

• Always fully apply the parking brake when leav- ing your vehicle, or it may roll and cause damage or injury. Also, be certain to leave the transmis- sion in P (Park). Failure to do so may allow the vehicle to roll and cause damage or injury. • Leaving children in a vehicle unattended is dan- gerous for a number of reasons. A child or others could be injured. Children should be warned not to touch the parking brake or the gear selector lever. Don’t leave the keys in the ignition. A child could operate power windows, 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.

STARTING AND OPERATING 275

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.

ANTI-LOCK BRAKE SYSTEM The Anti-Lock Brake System (ABS) is designed to aid the driver in maintaining vehicle control under adverse braking conditions. The system operates with a separate computer to modulate hydraulic pressure to prevent wheel lock-up and help avoid skidding on slippery surfaces. All vehicle wheels and tires must be the same size and type and tires must be properly inflated to produce accurate signals for the computer.

276 STARTING AND OPERATING

WARNING!

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.

Significant over or under inflation of tires, or mixing sizes of tires or wheels on the vehicle can lead to loss of braking effectiveness.

The Anti-Lock Brake System conducts a low-speed self- test at about 12 mph (20 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 Anti-Lock Brake System pump motor runs during the self-test at 12 mph (20 km/h) and during an ABS stop. The pump motor makes a low humming noise during operation, which is normal.

WARNING!

• The Anti-Lock Brake System (ABS) cannot pre- vent 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.

STARTING AND OPERATING 277

CAUTION!

The Anti-Lock Brake System is subject to possible detrimental effects of electronic interference caused by improperly installed after-market radios or tele- phones.

NOTE: During severe braking conditions, a pulsing sensation may occur and a clicking noise will be heard. This is normal, the Anti-Lock Brake System is functioning.

indicating that

WARNING!

To use your brakes and accelerator more safely, follow these tips:

278 STARTING AND OPERATING

• Do not “ride” the brakes by resting your foot on the pedal. This could overheat the brakes and result in longer stopping dis- unpredictable braking action, tances, or brake damage. • When descending mountains or hills, repeated brak- ing can cause brake fade with loss of braking control. Avoid repeated heavy braking by downshifting the transmission or locking out overdrive whenever pos- sible. • Engines may idle at higher speeds during warm-up, which could cause rear wheels to spin and result in loss of vehicle control. Be especially careful while driving on slippery roads, in close-quarter maneuver- ing, parking or stopping. • Do not drive too fast for road conditions, especially when roads are wet or slushy. A wedge of water can

build up between the tire tread and the road. This hydroplaning action can cause loss of traction, braking ability, and control. • After going through deep water or a car wash, brakes may become wet, resulting in decreased performance and unpredictable braking action. Dry the brakes by gentle, intermittent pedal action while driving at very slow speeds.

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 do 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 amount 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.

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.

STARTING AND OPERATING 279

CAUTION!

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

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.

280 STARTING AND OPERATING

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 designation. Ex- ample: P215/65R15 95H.

• 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 ⬙P⬙ 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.

Tire Sizing Chart

Size Designation:

EXAMPLE:

P = Passenger car tire size based on U.S. design standards ⴖ....blank....ⴖ = 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

—⬙R⬙ means Radial Construction. —⬙D⬙ means Diagonal or Bias Construction.

15 = Rim Diameter in Inches (in)

STARTING AND OPERATING 281

282 STARTING AND OPERATING

Service Description:

95 = Load Index

EXAMPLE:

—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 un- der specified operating conditions. (i.e. tire pressure, vehicle loading, road conditions, and posted speed limits).

Load Identification:

ⴖ....blank....ⴖ = Absence of any text on 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.

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 date code located on the white sidewall side of the tire.

STARTING AND OPERATING 283

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.

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.

EXAMPLE:

DOT MA L9 ABCD 0301

MA = Code representing the tire manufacturing location. (2 digits) L9 = Code representing the tire size. (2 digits) ABCD = Code used by tire manufacturer. (1 to 4 digits) 03 = Number representing the week in which the tire was manufactured. (2 digits)

—03 means the 3rd week.

01 = Number representing the year in which the tire was manufactured. (2 digits)

—01 means the year 2001. —Prior to July 2000, tire manufacturers were only required to have 1 number to represent the year in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991.

284 STARTING AND OPERATING

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 and Loading Information Placard

Tire and Loading Information

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

Tire Placard Location

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” sec- tion of this manual. NOTE: Under a maximum loaded vehicle condition, gross axle weight ratings (GAWR’s) for the front and rear axles must not be exceeded. For further information on GAWR’s, vehicle loading, and trailer towing, refer to the “Vehicle Loading” section of this manual.

STARTING AND OPERATING 285

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 pounds” 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 kilograms or XXX pounds.

286 STARTING AND OPERATING

4. The resulting figure equals the available amount of cargo and luggage load capacity. For example, if “XXX” amount equals 1400 lbs. and there will be five 150 lb. passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs. (since 5 x 150 = 750, and 1400 – 750 = 650 lbs.) 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).

STARTING AND OPERATING 287

288 STARTING AND OPERATING

WARNING!

1. Safety—

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. • Over inflation reduces a tire’s ability to cushion shock. Objects on the road and chuck holes can cause damage that results in tire failure. • Unequal tire pressures can cause steering problems. You could lose control of your vehicle. • Overinflated or under inflated tires can affect vehicle handling and can fail suddenly, resulting in loss of vehicle control. • 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 properly inflated.

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. Both under inflation and over inflation affect the stability of the vehicle and can produce a feeling of sluggish response or over responsiveness in the steering. Unequal tire pressures can cause erratic and unpredict- able steering response. Unequal tire pressure from side to side may cause the vehicle to drift left or right.

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Tire Inflation Pressures 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

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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.

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 3 hours, or driven less than 1 mile (1 km) after a 3 hour period. The cold tire inflation pressure must not exceed the maximum inflation pres- sure molded into the tire side wall.

Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire pressures vary with temperature changes. 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 maximum 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).

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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 tires in sets of four. 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 dealer for radial tire repairs. Tire Spinning When stuck in mud, sand, snow, or ice conditions, do not spin your vehicle’s wheels above 35 mph (55 km/h).

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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 someone. Do not spin your vehicle’s wheels faster than 35 mph (55 km/h) when you are stuck, and do not let anyone near a spinning wheel no matter what the speed.

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

These indicators are molded into the bottom of the tread grooves and will appear as bands when the tread depth becomes 1/16 inch (2 mm). When the indicators appear in 2 or more adjacent grooves, 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 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 result- ing in serious injury or death.

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Keep unmounted 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 (see the paragraph on tread wear indicators). Refer to the Tire and Loading Informa- tion 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, han- dling, and ride of your vehicle. We recommend that you contact your original equipment or an authorized tire dealer with any questions you may have on tire specifi- cations or capability.

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WARNING!

• Do not use a tire, wheel size or rating other than that specified for your vehicle. Some combina- tions of unapproved tires and wheels may change suspension dimensions and performance charac- teristics, resulting in changes to steering, han- dling, 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. • 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 read- ings.

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 left or right. Alignment will not correct this problem. See your autho- rized dealer for proper diagnosis.

wear.

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.

TIRE CHAINS Certain models have sufficient tire-to-body clearance to allow use of tire chains. Install chains on rear tires only. Follow these recommendations to guard against damage and excessive tire and chain wear: • Do not install tire chains or traction devices on ve- hicles with larger than P235/65R17 size tires. Tires larger than this may not provide sufficient body clearance with chains or other traction devices.

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mounting chains.

• Use SAE class “S” tire chains or traction devices only. • Follow tire chain manufacturer’s instructions for • Install chains snugly and tighten after 1/2 mile (1 km) • Do not exceed 35 mph (56 km/h), unless otherwise • Drive cautiously, avoiding large bumps, potholes and

specified by the chain manufacturer.

of driving.

extreme driving maneuvers.

NOTE: The Premium Tire Pressure Monitor System will automatically locate the pressure values displayed in the correct vehicle position following a tire rotation. The suggested rotation method is the “forward-cross” shown in the following diagram.

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TIRE ROTATION RECOMMENDATIONS Tires on the front and rear axles of vehicles operate at different loads and perform different steering, handling, 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 aggressive 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. 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.

TIRE PRESSURE MONITOR SYSTEM (TPMS) The Tire Pressure Monitoring System (TPMS) will warn the driver of a low tire pressure based on the vehicle recommended cold tire pressure. The tire pressure will vary with temperature by about 1
psi (7 kPa) for every 12°F (–11°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 - and in outside ambient temperature. Refer to the “Tires – General Information” in this section for information on how to properly inflate the vehicle’s tires. The tire pressure will also increase as the vehicle is driven - this is normal and there should be no adjustment for this increased pressure.

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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. 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 tire pressure. Once the low tire pressure warning has been illuminated, the tire pressure must be increased to the recommended cold tire pressure in order for the “Tire Pressure Monitoring Telltale Light” to be turned off. The system will automatically update and the “Tire Pressure Monitoring Telltale Light” 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 (24 km/h) to receive this information.

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For example, your vehicle has a recommended cold (parked for more than 3 hours) tire pressure 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 Pressure Monitoring Telltale Light.” Driving the vehicle may cause the tire pressure to rise to approximately 30 psi (207 kPa), but the “Tire Pressure Monitoring Telltale Light” will still be ON. In this situation, the “Tire Pressure Monitoring Telltale Light” will turn OFF only after the tires have been inflated to the vehicle’s recommended cold tire pressure. NOTE: Seasonal temperature changes will affect tire pressure, and the TPM system will monitor the actual tire pressure in the tire.

Base System — If Equipped 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 Monitor System (TPMS) consists of the following components: • Receiver Module • 4 Tire Pressure Monitoring Sensors • Tire Pressure Monitoring Telltale Light

A tire pressure monitoring sensor is located in the spare wheel if the vehicle is equipped with a matching full size spare wheel and tire assembly. The matching full size spare tire can be used in place of any of the four road tires.

The “Tire Pressure Monitoring Telltale Light” 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. The audible chime will sound once every ignition cycle for each condition that it detects. 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 tire pressure. The system will automatically update and the “Tire Pressure Moni- toring Light” will extinguish once the updated tire pres- sures have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) to receive this information. A low spare tire will not cause the “Tire Pressure Monitoring Telltale Light” to illumi- nate or the chime to sound.

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The “Tire Pressure Monitoring Telltale Light” will flash on and off for 60 seconds, and an audible chime will sound when a system fault is detected. The flash cycle will repeat every ten minutes, without an audible chime, until the fault condition no longer exists. If the ignition key is cycled, this sequence will repeat, providing the system fault still exists. If your vehicle is equipped with a matching full NOTE: size spare tire, it has a tire pressure monitoring sensor, and can be monitored by the Tire Pressure Monitoring System (TPMS). In the event that the matching full size spare tire is swapped with a low pressure road tire, the next ignition key cycle will still show the “Tire Pressure Monitoring Telltale Light” to be ON, and a chime to sound. Driving the vehicle for up to 10 minutes above 15
mph (24 km/h) will turn OFF the “Tire Pressure Moni- toring Telltale Light” as long as the spare tire or any other road tire(s) are not below the low pressure warning threshold.

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If your vehicle is equipped with a non-matching NOTE: full size spare tire, it does not have a tire pressure monitoring sensor. Therefore, it will not be monitored by the Tire Pressure Monitor System (TPMS). In the event that the non-matching full size spare tire is swapped with a low pressure road tire, each ignition key cycle will still show the “Tire Pressure Monitoring Telltale Light” to be ON, and a chime to sound. After the original road tire has been properly repaired and put back onto the vehicle in place of the non-matching full size spare tire, the TPMS will update automatically, and the “Tire Pressure Moni- toring Telltale Light” will be OFF as long as none of the road tires are below the low pressure warning threshold. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) to receive this information.

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 tire sealant from a can, or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result.

CAUTION!

After inspecting or adjusting the tire pressure al- ways reinstall the valve stem cap. This will prevent moisture 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 • Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure.

while adjusting your tire pressure.

STARTING AND OPERATING 301

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.”

Premium System — If Equipped 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.

302 STARTING AND OPERATING

wells)

The Tire Pressure Monitor System (TPMS) consists of the following components: • Receiver Module • 4 Tire Pressure Monitoring Sensors • 3 Trigger Modules (mounted in three of the four wheel • Various Tire Pressure Monitoring System Messages, which display in the Electronic Vehicle Information Center (EVIC)

• Tire Pressure Monitoring Telltale Light A tire pressure monitoring sensor is located in the spare wheel if the vehicle is equipped with a matching full size spare wheel and tire assembly. The matching full size spare tire can be used in place of any of the four road tires.

Tire Pressure Monitoring Low Pressure Warnings

it detects. In addition,

The “Tire Pressure Monitoring Telltale Light” 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. The audible chime will sound once every ignition cycle for each condition that the Electronic Vehicle Information Center (EVIC) will display one or more Low Pressure messages (Left Front, Left Rear, Right Front, Right Rear) for 3 seconds, and a graphic display of the pressure value(s) with the low tire(s) flashing. Refer to “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual. If your vehicle is equipped with a matching full NOTE: size spare tire, a low matching full size spare tire will set the “SPARE LOW PRESSURE” text message, but it will not cause the “Tire Pressure Monitoring Telltale Light” to illuminate or the chime to sound.

If your vehicle is equipped with a non-matching NOTE: full size spare tire, a low non-matching full size spare tire will not display any text messages, or cause the “Tire Pressure Monitoring Telltale Light” to illuminate or the chime to sound. NOTE: Your system can be set to display pressure units in PSI, kPa, or BAR.

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Should a low tire condition occur on any of the four active road tire(s), you should stop as soon as possible, and inflate the low tire(s) that is flashing on the graphic display to the vehicle’s recommended cold tire pressure. The system will automatically update, the graphic dis- play of the pressure value(s) will stop flashing, and the “Tire Pressure Monitoring Telltale Light” will extinguish once the updated tire pressure(s) have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) to receive this information. Service Tire Pressure System The “Tire Pressure Monitoring Telltale Light” will flash on and off for 60 seconds, and an audible chime will sound when a system fault is detected. The flash cycle will repeat every ten minutes, without an audible chime, until the fault condition no longer exists.

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The EVIC will display the “SERVICE TIRE PRESS. SYS- TEM” message for 3 seconds. This text message is then followed by a graphic, with “- -“ displayed for the pressure value(s) indicating which of the Tire Pressure Monitoring Sensor(s) is not being received. Refer to “Electronic Vehicle Information Center (EVIC)” in Section 4 of this manual. NOTE: Your system can be set to display pressure units in PSI, kPa, or BAR.

If the ignition key is cycled, this sequence will repeat, providing the system fault still exists. If the system fault no longer exists, the “Tire Pressure Monitoring Telltale Light” will no longer flash, the ⬙SERVICE TIRE PRESS. SYSTEM⬙ text message will no longer display, and a pressure value will be displayed instead of dashes. If your vehicle is equipped with a matching full NOTE: size spare tire, it has a tire pressure monitoring sensor, and can be monitored by the Tire Pressure Monitoring System (TPMS). In the event that the matching full size spare tire is swapped with a low pressure road tire, the next ignition key cycle will still show the “Tire Pressure Monitoring Telltale Light” to be ON, a chime to sound, a Low Pressure message to appear in the EVIC, and the graphic display will still show the low tire pressure value flashing. Driving the vehicle for up to 10 minutes above 15 mph (24 km/h) will turn OFF the “Tire Pressure Monitoring Telltale Light” as long as the matching full size spare tire or any other road tire(s) are not below the

low pressure warning threshold. The EVIC will display a “Spare Low Pressure” text message, and the graphic display will show a new tire pressure value in place of the flashing low tire pressure value. If your vehicle is equipped with a non-matching NOTE: full size spare tire, it does not have a tire pressure monitoring sensor. Therefore, it will not be monitored by the Tire Pressure Monitor System (TPMS). In the event that the non-matching full size spare tire is swapped with a low pressure road tire, every ignition key cycle will still show the “Tire Pressure Monitoring Telltale Light” to be ON, a chime to sound, a Low Pressure message to appear in the EVIC, and the graphic display will still show the low tire pressure value flashing. After the original road tire has been properly repaired and put back onto the vehicle in place of the non-matching full size spare tire, the TPMS will update the graphic display on the EVIC with a new tire pressure value instead of the flashing low tire pressure value, and the “Tire Pressure Monitoring

STARTING AND OPERATING 305

Telltale Light” will be OFF as long as none of the road tire(s) are below the low pressure warning threshold. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) to receive this information.

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 tire sealant from a can, or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result.

306 STARTING AND OPERATING

CAUTION!

After inspecting or adjusting the tire pressure al- ways reinstall the valve stem cap. This will prevent moisture 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, or to provide warning of a tire failure or condition. • The TPMS should not be used as a tire pressure gauge • Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure.

while adjusting your tire pressure.

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.”

General Information This device complies with part 15 of the FCC rules and RSS 210 of Industry Canada. Operation is subject to the