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follow these additional instructions: • Using the remote control Left and Right cursor but- • Highlight ⬙Change Password⬙, and then press the • Enter the current password. Select a digit, use the remote control Up and Down cursor buttons to set the value for the current digit, and then press the remote control’s Right cursor button to select the next digit. Repeat this digit selection sequence for all four digits. • After the four-digit password is entered, press the remote control’s ENTER button. If the password is correct, the set password screen is displayed. • Using the remote control’s Up and Down cursor buttons to set the value for the current digit and the remote control’s Right cursor button to select digits, enter the new password.


UNDERSTANDING YOUR INSTRUMENT PANEL 351


• After the four-digit password is entered, press the remote control’s ENTER button to accept the change.


DVD Player Level Menu


control’s ENTER button.


buttons, select the Rating tab.


352 UNDERSTANDING YOUR INSTRUMENT PANEL To set the rating, activate the DVD Setup Menu and follow these additional instructions: • Using the remote control’s Left and Right cursor • Highlight ⬙Change Rating⬙, and then press the remote • Enter the current password. Select a digit, use the remote control’s Up and Down cursor buttons to set the value for the current digit, and then press the remote control’s Right cursor button to select the next digit. Repeat this digit selection sequence for all four digits. • After the four-digit password is entered, press the remote control’s ENTER button. If the password is correct, the Rating Level menu is displayed.


• Using the remote control’s Up and Down cursor buttons, select the new rating level, and then press the remote control’s ENTER button to accept the change.


Product Agreement This product incorporates copyright protection technol- ogy that is protected by U.S. patents and other intellec- tual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home or other limited viewing uses other- wise authorized by Macrovision. Reverse engineering or disassembly is prohibited.


Dolby威 Digital and MLP Lossless Manufactured under license from Dolby Laboratories. ⬙Dolby⬙, ⬙MLP Lossless⬙, and the double-D symbol are trademarks of Dolby Laboratories. Confidential unpublished works. Copyright 1992-1997 Dolby Laboratories. All right re- served.


General Information This system complies with Part 15 of the FCC Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation.


STEERING WHEEL AUDIO CONTROLS — IF EQUIPPED The remote sound system controls are located on the rear surface of the steering wheel. Reach behind the wheel to access the switches.


UNDERSTANDING YOUR INSTRUMENT PANEL 353


Remote Sound System Controls (Back View Of Steering Wheel)


The right hand control is a rocker type switch with a pushbutton in the center. Pressing the top of the switch will increase the volume, and pressing the bottom of the switch will decrease the volume.


354 UNDERSTANDING YOUR INSTRUMENT PANEL The button located in the center of the right hand control will switch modes to Radio, CD or other valid audio source. The left hand control is a rocker type switch with a pushbutton in the center. The function of the left hand control is different depending on which mode you are in. The following describes the left hand control operation in each mode. Radio Operation Pressing the top of the switch will SEEK up for the next listenable station and pressing the bottom of the switch will SEEK down for the next listenable station. The button located in the center of the left hand control will tune to the next pre-set station that you have programmed in the radio pre-set pushbuttons.


CD Player Pressing the top of the switch once will go to the next track on the CD. Pressing the bottom of the switch once will go to the beginning of the current track or to the beginning of the previous track if it is within one second after the current track begins to play. If you press the switch up or down twice it plays the second track, three times, it will play the third, etc. The button in the center of the left hand switch changes CDs on the 6–Disc in-dash CD changer radio. This button does not function for all other radios.


CD/DVD DISC MAINTENANCE To keep a CD/DVD in good condition, take the following precautions: 1. Handle the disc by its edge; avoid touching the surface.


2. If the disc is stained, clean the surface with a soft cloth, wiping from center to edge. 3. Do not apply paper or tape to the disc; avoid scratch- ing the disc. 4. Do not use solvents such as benzene, thinner, cleaners, or anti-static sprays. 5. Store the disc in its case after playing. 6. Do not expose the disc to direct sunlight. 7. Do not store the disc where temperatures may become too high. If you experience difficulty in playing a particu- NOTE: lar disc, it may be damaged (i.e., scratched, reflective coating removed, a hair, moisture or dew on the disc) oversized, or have protection encoding. Try a known good disc before considering disc player service.


UNDERSTANDING YOUR INSTRUMENT PANEL 355


RADIO OPERATION AND MOBILE PHONES Under certain conditions, the mobile phone being on in your vehicle can cause erratic or noisy performance from your radio. This condition may be lessened or eliminated by relocating the mobile phone antenna. This condition is not harmful to the radio. If your radio performance does not satisfactorily “clear” by the repositioning of the antenna, it is recommended that the radio volume be turned down or off during mobile phone operation when not using Uconnect™ (if equipped).


CLIMATE CONTROLS The Climate Control System allows you to regulate the temperature, amount, and direction of air circulating throughout the vehicle. The controls are located on the instrument panel below the radio.


356 UNDERSTANDING YOUR INSTRUMENT PANEL NOTE: During snowplow usage on vehicles equipped with outside temperature display, the display may show higher temperatures than the outside ambient tempera- ture. The higher displayed temperature is due to blocked or reduced airflow to the underhood ambient tempera- ture sensor caused by the snowplow. In addition, on vehicles equipped with Automatic Temperature Control (ATC), it is suggested that the interior cabin temperature be manually controlled should the system not perform as desired while in automatic mode. Both the outside tem- perature display and ATC operation will return to nor- mal when the snowplow is removed. Manual Heating And Air Conditioning System The controls for the manual heating and air conditioning system in this vehicle consist of a series of outer rotary dials and inner push knobs. These comfort controls can be set to obtain desired interior conditions.


1 – Front Blower 2 – Temperature Control 3 – MODE Control


4 – DEFROST Mode 5 – Air Conditioning (A/C) 6 – RECIRCULATION Control


Front Blower Control


There are four blower speeds. Use this control to regulate the amount of air forced through the system in any mode you select. The blower speed increases as you move the control clockwise from the OFF position.


NOTE: For vehicles equipped with Remote Start, the climate controls will not function during Remote Start operation if the blower control is left in the OFF position. Temperature Control


Use this control to regulate the tem- perature of the air inside the passenger compartment. Rotating the knob coun- terclockwise, from top center into the blue area of the scale, indicates cooler


UNDERSTANDING YOUR INSTRUMENT PANEL 357
temperatures. Rotating the knob clockwise, into the red area, indicates warmer temperatures. If your air conditioning performance seems NOTE: lower than expected, check the front of the A/C con- denser (located in front of the radiator), for an accumu- lation of dirt or insects. Clean with a gentle water spray from behind the radiator and through the condenser. Fabric front fascia protectors may reduce airflow to the condenser, reducing air conditioning performance. Mode Control (Air Direction)


Mode control allows you to choose from several patterns of air distribu- tion. You can select either a primary mode, as identified by the symbols, or a blend of two of these modes. The closer the control is to a particular mode, the more air distribution you


receive from that mode.


358 UNDERSTANDING YOUR INSTRUMENT PANEL Panel Mode


Air is directed through the outlets in the instrument panel. These outlets can be adjusted to direct airflow.


Bi-Level Mode


Air is directed through the panel and floor outlets.


NOTE: There is a difference in temperature (in any conditions other than full cold or full hot), between the upper and lower outlets for added comfort. The warmer air goes to the floor outlets. This feature gives improved comfort during sunny but cool conditions. Floor Mode


Air is directed through the floor outlets with a small amount through the defrost and side window


demist outlets.


Mix Mode


Air is directed through the floor, defrost and side window demist outlets. This setting works best in cold or snowy conditions that require extra heat at the windshield. This setting is good for maintaining comfort, while reducing moisture on the windshield. Defrost Mode


Air is directed through the windshield and side window demist outlets. Use the DEFROST mode with maximum blower and warm temperature settings for best windshield and side window defrosting. NOTE: The air conditioning compressor operates in MIX and DEFROST, or a blend of these modes even if the A/C button is not pressed. This dehumidifies the air to help dry the windshield. To improve fuel economy, use these modes only when necessary.


Recirculation Control


Press this button to choose between outside air intake or recirculation of the air inside the vehicle. A LED will illuminate when you are in Recircula- tion mode. Only use the Recirculation mode to temporarily block out any outside odors, smoke, or dust, and to cool the interior rapidly upon initial start-up in very hot or humid weather. NOTE: • If the RECIRCULATION button is pressed when the system is in Mix or Defrost mode the Recirculation LED indicator will flash three times and then turn off to indicate Recirculation mode is not allowed. • Continuous use of the Recirculation mode may make the inside air stuffy and window fogging may occur. Extended use of this mode is not recommended.


UNDERSTANDING YOUR INSTRUMENT PANEL 359


• In cold or damp weather, the use of the Recirculation mode will cause windows to fog on the inside because of moisture buildup inside the vehicle. For maximum defogging, select the outside air position. • The A/C can be deselected manually without disturb- ing the mode control selection by pressing the A/C button.


Air Outlets The airflow from each of the instrument panel outlets can be adjusted for direction, and turned on or off to control airflow. NOTE: For maximum airflow to the rear, the center instrument panel outlets can be directed toward the rear seat passengers.


360 UNDERSTANDING YOUR INSTRUMENT PANEL Economy Mode If ECONOMY mode is desired, press the A/C button to turn off the LED indicator and the A/C compressor. Rotate the temperature control knob to the desired temperature. Air Conditioning Operation


Push this button to engage the Air Conditioning (A/C). A LED will illu- minate when the A/C system is engaged.


MAX A/C


For maximum cooling, when MAX A/C is selected the A/C is turned on automatically and the air is recircu- lated.


NOTE: A/C cannot be deselected when in MAX A/C position. The LED will blink three times if the A/C button is pushed. Automatic Temperature Control (ATC) — If Equipped • The Automatic Temperature Control (ATC) allows both driver and front passenger seat occupants to select individual comfort settings.


• When occupants in the vehicle select an Auto mode operation, Auto blower operation is set by using rotary knobs on the control unit and a comfort temperature setting by using the temperature up and down but- tons. • The system provides set-and-forget operation for op- • The system can be controlled manually, if desired. • SYNC feature links the temperature controls, the pas- senger side temperature becomes the same as the temperature selected by the driver.


timum comfort and convenience.


The ATC system automatically maintains the interior comfort level desired by the driver and all passengers.


UNDERSTANDING YOUR INSTRUMENT PANEL 361


Automatic Temperature Control (ATC) Panel


1 - Blower Control 2 - Left Temperature Up 3 - SYNC Indicator 4 - Left Temperature Indicator 5 - Right Temperature Indicator 6 - DELAY Indicator 7 - Right Temperature Up 8 - MODE


9 - DEFROST 10 - Right Temperature Down 11 - A/C 12 - A/C Indicator 13 - SYNC Temperature Button


14 - Left Temperature Down 15 - RECIRCULATE


362 UNDERSTANDING YOUR INSTRUMENT PANEL Automatic Operation 1. Position the MODE control knob to the Auto position on the Automatic Temperature Control (ATC) Panel. 2. Position the BLOWER control knob in the Auto posi- tion on the ATC Panel. 3. Next, adjust the temperature you would like the system to maintain by adjusting the driver and front passenger temperature buttons. Once the desired tem- perature is displayed, the system will achieve and auto- matically maintain that comfort level. 4. When the system is set up for your comfort level, it is not necessary to change the settings. You will experience the greatest efficiency by simply allowing the system to function automatically.


NOTE: • It is not necessary to move the temperature settings for cold or hot vehicles. The system automatically adjusts the temperature, mode and fan speed to provide comfort as quickly as possible. • The temperature can be displayed in U.S. or Metric units by selecting the US/M customer-programmable feature. Refer to the “Electronic Vehicle Information Center (EVIC) — Customer-Programmable Features (SETUP)” in this section of the manual.


To provide you with maximum comfort in the Automatic mode, during cold start-ups the blower fan will remain on low and the DELAY symbol will appear in the ATC display until the engine warms up. The blower will increase in speed and transition into Auto mode and DELAY will no longer be illuminated in the display. The blower will engage immediately if the Defrost mode is selected, or by adjusting the blower control knob and setting the fan to any fixed speed.


Manual Operation This system offers a full complement of manual override features. NOTE: Each of these features operate independently from each other. If any one feature is controlled manually, the temperature doors will continue to operate automati- cally.


There are six fixed blower speeds. Use this control to regulate the amount of air forced through the system in any mode you select. The blower speed increases as you move the control clockwise from the OFF position.


Blower Control


UNDERSTANDING YOUR INSTRUMENT PANEL 363
selected. This allows the front occupants to control the volume of air circulated in the vehicle and cancel the Auto mode. The operator can also select the direction of the airflow by selecting one of the following positions. Panel Mode


Air comes from the outlets in the instrument panel. Each of these outlets can be individually adjusted to direct the flow of air. The air vanes of the center outlets and outboard outlets can be rotated to regulate or shut off the airflow from these outlets. Bi-Level Mode


Air comes from the instrument panel outlets, floor outlets and defrost outlets.


The blower fan speed can be set to any fixed speed by adjusting the blower control knob. The fan will now operate at a fixed speed until additional speeds are


In many temperature positions, the BI-LEVEL NOTE: mode is designed to provide cooler air out of the panel outlets and warmer air from the floor outlets.


364 UNDERSTANDING YOUR INSTRUMENT PANEL Floor Mode


Air comes from the floor outlets. A slight amount of air is directed through the defrost and side window


demister outlets. Mix Mode


Air comes from the floor, defrost and side window demist outlets. This mode works best in cold or snowy conditions. It allows you to stay comfortable


while keeping the windshield clear. Defrost Mode


Air comes from the windshield and side window demist outlets. Use Defrost mode with maximum blower and temperature settings for best windshield and side window defrosting.


NOTE: While operating in the other modes, the system will not automatically sense the presence of fog, mist or ice on the windshield. Defrost mode must be manually selected to clear the windshield and side glass.


The Air Conditioning (A/C) button allows the operator to manually activate or deactivate the air conditioning system. When in A/C mode and the ATC is set to a cool temperature, dehumidified air flows through the air outlets. If Economy mode is desired, press the A/C button to turn off the A/C mode in the ATC display and deactivate the A/C system. NOTE: • If the system is in Mix, Bi-Level or Defrost Mode, the A/C can be turned off, but the A/C system shall remain active to prevent fogging of the windows. • If fog or mist appears on the windshield or side glass,


select Defrost mode and increase blower speed.


Recirculation Control


When outside air contains smoke, odors, or high humidity, or if rapid cooling is desired, you may wish to recirculate interior air by pressing the RECIRCULATION control button. Recirculation mode should only be used temporarily. The recirculation LED will illuminate on the blower control knob when this button is selected. Push the button a second time to turn off the Recirculation mode LED and allow outside air into the vehicle. In cold weather, use of Recirculation mode may NOTE: lead to excessive window fogging. The Recirculation mode is not allowed in the Floor/Defrost Mix and Defrost modes to improve window clearing operation. Recirculation will be disabled automatically if these modes are selected.


UNDERSTANDING YOUR INSTRUMENT PANEL 365


Summer Operation The engine cooling system in air conditioned vehicles must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating. A solution of 50% ethylene glycol antifreeze coolant and 50% water is recommended. Refer to “Maintenance Procedures” in “Maintaining Your Vehicle” for proper coolant selection. Winter Operation To ensure the best possible heater and defroster perfor- mance, make sure the engine cooling system is function- ing properly and the proper amount, type, and concen- tration of coolant to “Maintenance Procedures” in “Maintaining Your Vehicle” for proper coolant selection. Use of the air Recirculation mode during Winter months is not recommended because it may cause window fogging.


is used. Refer


Outside Air Intake Make sure the air intake, located directly in front of the windshield, is free of obstructions such as leaves. Leaves collected in the air intake may reduce airflow, can cause odor, and if they enter the plenum they could plug the water drains. In Winter months make sure the air intake is clear of ice, slush and snow.


366 UNDERSTANDING YOUR INSTRUMENT PANEL Vacation/Storage Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in fresh air with the blower setting in high. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again. Window Fogging and Frosting Vehicle windows tend to fog on the inside of the glass in mild, rainy and/or humid weather. Windows may frost on the inside of the glass in very cold weather. To clear the windows, select Defrost or Mix mode and increase the front blower speed. Do not use the Recirculation mode without A/C for long periods, as fogging may occur.


Operating Tips


UNDERSTANDING YOUR INSTRUMENT PANEL 367


STARTING AND OPERATING


CONTENTS


䡵 Starting Procedures . . . . . . . . . . . . . . . . . . . . 375
▫ Normal Starting . . . . . . . . . . . . . . . . . . . . . 375
▫ Automatic Transmission . . . . . . . . . . . . . . . 375
▫ Extreme Cold Weather


(Below –20°F Or ⫺29°C) . . . . . . . . . . . . . . . 376
▫ If Engine Fails To Start . . . . . . . . . . . . . . . . 376
▫ After Starting . . . . . . . . . . . . . . . . . . . . . . . 377
䡵 Engine Block Heater — If Equipped . . . . . . . . 377


䡵 Automatic Transmission . . . . . . . . . . . . . . . . . 378
▫ Key Ignition Park Interlock . . . . . . . . . . . . . 380
▫ Brake/Transmission Shift Interlock System . . 380
▫ Four–Speed Automatic Transmission


(3.7L Engine) — If Equipped . . . . . . . . . . . . 380


▫ Six–Speed Automatic Transmission


(4.7L And 5.7L Engine) — 1500 Models Only . . . . . . . . . . . . . . . . . . . . 390


▫ Six–Speed Automatic Transmission


(5.7L Engine) — 2500 Models Only . . . . . . . . 401


370 STARTING AND OPERATING 䡵 Four-Wheel Drive Operation — If Equipped . . 411


▫ Manually Shifted Transfer Case – If


Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . 411


▫ Shifting Procedure – Manually Shifted


Transfer Case . . . . . . . . . . . . . . . . . . . . . . . 414
▫ Transfer Case Position Indicator Light . . . . . . 415
▫ Electronically Shifted Transfer Case


(Four-Position Switch) – If Equipped . . . . . . . 415
. . . . . . . . . . . . . . . . . . . 419


▫ Shifting Procedure ▫ Electronically Shifted Transfer Case


(Five-Position Switch) – If Equipped . . . . . . . 422
. . . . . . . . . . . . . . . . . . . 426


▫ Shifting Procedure


䡵 Axle Locker System (2500 Models Only) — If


Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428


䡵 Stabilizer/Sway Bar System — Power Wagon


Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431


䡵 Safe Off-Road Driving —


Power Wagon Only . . . . . . . . . . . . . . . . . . . . . 433
▫ Off-Road Driving Tips And Vehicle


Characteristics


. . . . . . . . . . . . . . . . . . . . . . 433
▫ Driving In Snow, Mud And Sand . . . . . . . . . 435
▫ Crossing Obstacles


(Rocks And Other High Points)


. . . . . . . . . . 437
▫ Hill Climbing . . . . . . . . . . . . . . . . . . . . . . . 439
▫ Driving Through Water . . . . . . . . . . . . . . . . 442
▫ Airing Down For Off-Road Driving . . . . . . . 444
▫ Vehicle Recovery . . . . . . . . . . . . . . . . . . . . . 445
▫ After Driving Off-Road . . . . . . . . . . . . . . . . 449
. . . . . . . . . . . . . . . . . 450


䡵 Limited-Slip Differential


䡵 Driving Through Water


䡵 Driving On Slippery Surfaces . . . . . . . . . . . . . 451
▫ Acceleration . . . . . . . . . . . . . . . . . . . . . . . . 451
▫ Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . 452
. . . . . . . . . . . . . . . . . 452
▫ Flowing/Rising Water . . . . . . . . . . . . . . . . . 452
▫ Shallow Standing Water . . . . . . . . . . . . . . . 453
䡵 Off-Road Driving Tips . . . . . . . . . . . . . . . . . . 454
▫ After Driving Off-Road . . . . . . . . . . . . . . . . 455


䡵 Winch Usage (Power Wagon Only) — If


Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
▫ Things To Know Before Using Your Winch . . 456
▫ Understanding The Features


Of Your Winch . . . . . . . . . . . . . . . . . . . . . . 458
▫ Winch Accessories . . . . . . . . . . . . . . . . . . . . 460


STARTING AND OPERATING 371
▫ Operating Your Winch . . . . . . . . . . . . . . . . . 461
▫ Rigging Techniques . . . . . . . . . . . . . . . . . . . 474
䡵 Power Steering . . . . . . . . . . . . . . . . . . . . . . . 476
▫ Power Steering Fluid Check . . . . . . . . . . . . . 477


䡵 Multi-Displacement System (MDS)


(If Equipped) — 5.7L Engine Only . . . . . . . . . . 478
䡵 Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . 478
䡵 Brake System . . . . . . . . . . . . . . . . . . . . . . . . 480
▫ 3500 Dual Rear Wheel Models Only . . . . . . . 480
䡵 Electronic Brake Control System . . . . . . . . . . . 481
▫ Anti-Lock Brake System (ABS) . . . . . . . . . . . 481
▫ Traction Control System (TCS) –


If Equipped . . . . . . . . . . . . . . . . . . . . . . . . 481
▫ Brake Assist System (BAS) – If Equipped . . . 482


372 STARTING AND OPERATING


▫ Hill Start Assist (HSA) – If Equipped . . . . . . 483
▫ Electronic Stability Control (ESC) – If


Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . 486


▫ ESC Activation/Malfunction Indicator Light


And ESC Off Indicator Light


. . . . . . . . . . . . 490
▫ Trailer Sway Control (TSC) – If Equipped . . . 491
䡵 Tire Safety Information . . . . . . . . . . . . . . . . . 492
▫ Tire Markings . . . . . . . . . . . . . . . . . . . . . . . 492
▫ Tire Identification Number (TIN) . . . . . . . . . 496
▫ Tire Terminology And Definitions . . . . . . . . . 497
▫ Tire Loading And Tire Pressure . . . . . . . . . . 498
䡵 Tires — General Information . . . . . . . . . . . . . 502
▫ Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . 502
▫ Tire Inflation Pressures . . . . . . . . . . . . . . . . 503


▫ Tire Pressures For High Speed Operation . . . 505
▫ Radial Ply Tires . . . . . . . . . . . . . . . . . . . . . 505
▫ Spare Tire Matching Original Equipped Tire


And Wheel – If Equipped . . . . . . . . . . . . . . 506
▫ Compact Spare Tire – If Equipped . . . . . . . . 506
▫ Full Size Spare – If Equipped . . . . . . . . . . . . 507
▫ Limited-Use Spare – If Equipped . . . . . . . . . 507
▫ Tire Spinning . . . . . . . . . . . . . . . . . . . . . . . 508
▫ Tread Wear Indicators . . . . . . . . . . . . . . . . . 509
▫ Life Of Tire . . . . . . . . . . . . . . . . . . . . . . . . 509
▫ Replacement Tires . . . . . . . . . . . . . . . . . . . . 510


䡵 Supplemental Tire Pressure Information — If


Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511
䡵 Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . 512


䡵 Snow Tires 䡵 Tire Rotation Recommendations


. . . . . . . . . . . . . . . . . . . . . . . . . . 514
. . . . . . . . . . . 515
▫ Directional Tires – If Equipped . . . . . . . . . . . 516
▫ Dual Rear Wheels – If Equipped . . . . . . . . . 516
. . . . . . . 517
▫ Base System . . . . . . . . . . . . . . . . . . . . . . . . 520
▫ Premium System – If Equipped . . . . . . . . . . 522
▫ Tire Pressure Monitor System (TPMS) Tire


䡵 Tire Pressure Monitor System (TPMS)


Light Load Inflation Switch Description (2500 Models) – If Equipped . . . . . . . . . . . . 526
▫ General Information . . . . . . . . . . . . . . . . . . 530
䡵 Fuel Requirements . . . . . . . . . . . . . . . . . . . . . 531
▫ 3.7L And 4.7L Engine . . . . . . . . . . . . . . . . . 531
▫ 5.7L Engine . . . . . . . . . . . . . . . . . . . . . . . . 531


STARTING AND OPERATING 373
▫ Reformulated Gasoline . . . . . . . . . . . . . . . . 532
▫ Gasoline/Oxygenate Blends . . . . . . . . . . . . . 532
▫ E-85 Usage In Non-Flex Fuel Vehicles . . . . . . 532
▫ MMT In Gasoline . . . . . . . . . . . . . . . . . . . . 533
▫ Materials Added To Fuel . . . . . . . . . . . . . . . 534
▫ Fuel System Cautions . . . . . . . . . . . . . . . . . 534
▫ Carbon Monoxide Warnings . . . . . . . . . . . . 535


䡵 Flexible Fuel (4.7L Engine Only) —


If Equipped . . . . . . . . . . . . . . . . . . . . . . . . . . 536
▫ E-85 General Information . . . . . . . . . . . . . . . 536
▫ Ethanol Fuel (E-85) . . . . . . . . . . . . . . . . . . . 537
▫ Fuel Requirements . . . . . . . . . . . . . . . . . . . 537
▫ Selection Of Engine Oil For Flexible Fuel


Vehicles (E-85) And Gasoline Vehicles . . . . . . 538


374 STARTING AND OPERATING


䡵 Adding Fuel


▫ Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 538
▫ Cruising Range . . . . . . . . . . . . . . . . . . . . . . 539
▫ Replacement Parts . . . . . . . . . . . . . . . . . . . 539
▫ Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 539
. . . . . . . . . . . . . . . . . . . . . . . . . 540
▫ Loose Fuel Filler Cap Message . . . . . . . . . . . 541
. . . . . . . . . . . . . . . . . . . . . . 541
. . . . . . . . . . . . . . . . . . . 541
䡵 Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 544
▫ Common Towing Definitions . . . . . . . . . . . . 544
▫ Trailer Hitch Classification . . . . . . . . . . . . . . 548
▫ Trailer Towing Weights


▫ Certification Label


䡵 Vehicle Loading


(Maximum Trailer Weight Ratings) . . . . . . . . 549


▫ Trailer And Tongue Weight . . . . . . . . . . . . . 553
▫ Towing Requirements . . . . . . . . . . . . . . . . . 554
▫ Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . 564
䡵 Snowplow . . . . . . . . . . . . . . . . . . . . . . . . . . 566
▫ 1500 Models Only . . . . . . . . . . . . . . . . . . . . 566
▫ 2500/3500 Models Only . . . . . . . . . . . . . . . . 566


䡵 Recreational Towing


(Behind Motorhome, Etc.) . . . . . . . . . . . . . . . . 570
▫ Towing This Vehicle


Behind Another Vehicle . . . . . . . . . . . . . . . . 570


▫ Recreational Towing – Two-Wheel Drive


Models


. . . . . . . . . . . . . . . . . . . . . . . . . . . 571


▫ Recreational Towing – Four-Wheel Drive


Models


. . . . . . . . . . . . . . . . . . . . . . . . . . . 572


STARTING PROCEDURES Before starting your vehicle, adjust your seat, adjust both inside and outside mirrors, and fasten your seat belt. The starter should not be operated for more than 15- second intervals. Waiting a few seconds between such intervals will protect the starter from overheating.


WARNING!


Never leave children alone in a vehicle. Leaving children in a vehicle unattended is dangerous for a number of reasons. A child or others could be seri- ously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the shift lever. Do not leave the key fob in the vehicle. A child could operate power windows, other controls, or move the vehicle.


STARTING AND OPERATING 375


Normal Starting Normal starting of either a warm or cold engine is obtained without pumping or pressing the accelerator pedal. Turn the key fob to the START position and release when the engine starts. If the engine fails to start within 10 seconds, turn the key fob to the OFF position, wait five seconds, then repeat the “Normal Starting” procedure. Automatic Transmission Start the engine with the shift lever in the NEUTRAL or PARK position. Apply the brake before shifting into any driving range. NOTE: This vehicle is equipped with a transmission shift interlocking system. The brake pedal must be pressed to shift out of PARK.


376 STARTING AND OPERATING Tip Start Feature Do not press the accelerator. Turn the ignition switch briefly to the START position and release it. The starter motor will continue to run but will automatically disen- gage when the engine is running. Extreme Cold Weather (Below –20°F or ⫺29°C) To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (avail- able from your authorized dealer) is recommended. If Engine Fails To Start If the engine fails to start after you have followed the “Normal Starting” procedure, 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!


• 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 transmission 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.


(Continued)


WARNING! (Continued)


• 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 “Jump Starting” in “What To Do In Emergen- cies” for further information.


If the engine has been flooded, it may start to run, but not have enough power to continue running when the key fob is released. If this occurs, continue cranking with the accelerator pedal pushed all the way to the floor. Release the accelerator pedal and the key fob 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” procedure should be repeated.


STARTING AND OPERATING 377


After Starting The idle speed is automatically controlled and will de- crease as the engine warms up.


ENGINE BLOCK HEATER — IF EQUIPPED The engine block heater warms the engine, and permits quicker starts in cold weather. Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. 1500 Models The engine block heater cord is routed under the hood on the passenger side of the vehicle near the right head lamp assembly. It is located between the front grill and the radiator, but underneath the black upper seal. 2500/3500 Models The engine block heater cord is routed through the grille by the right front tow hook.


378 STARTING AND OPERATING It includes a removable cap that is secured by a tethered strap. It also has a c-clip that is used for storage when not in use for the winter months. During winter months, remove the heater cord wiring assembly from itself on the c-clip. The engine block heater must be plugged in at least one hour to have an adequate warming effect on the engine.


WARNING!


Remember to disconnect the engine block heater cord before driving. Damage to the 110-115 Volt electrical cord could cause electrocution.


AUTOMATIC TRANSMISSION


CAUTION!


a complete stop.


Damage to the transmission may occur if the follow- ing precautions are not observed: • Shift into PARK only after the vehicle has come to • Shift into or out of REVERSE only after the vehicle has come to a complete stop and the engine is at idle speed. • Do not shift between PARK, REVERSE, NEU- TRAL, or DRIVE when the engine is above idle speed. • Before shifting into any gear, make sure your foot


is firmly pressing the brake pedal.


WARNING!


• Unintended movement of a vehicle could injure those in or near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always apply the parking brake, shift the transmission into PARK, and remove the key fob. Once the key fob is removed, the shift lever is locked in the PARK position, securing the vehicle against unwanted movement. Furthermore, you should never leave unattended children inside a vehicle.


(Continued)


STARTING AND OPERATING 379


WARNING! (Continued)


• Leaving children in a vehicle unattended is dan- gerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the shift lever. Do not leave the key fob in the vehicle. A child could operate power windows, other controls, or move the vehicle. • It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing 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 pressing the brake pedal.


380 STARTING AND OPERATING Key Ignition Park Interlock This vehicle is equipped with a Key Ignition Park Inter- lock which requires the shift lever to be placed in PARK before the ignition switch can be turned to the LOCK/ OFF position. The key fob can only be removed from the ignition when the ignition is in the LOCK/OFF position, and once removed the shift lever is locked in PARK. Brake/Transmission Shift Interlock System This vehicle is equipped with a Brake Transmission Shift Interlock System (BTSI) that holds the shift lever in the PARK position unless the brakes are applied. To move the shift lever out of the PARK position, the ignition switch must be turned to the ON/RUN position (engine running or not) and the brake pedal must be pressed.


Four–Speed Automatic Transmission (3.7L Engine) — If Equipped The shift lever position display (located in the instrument panel cluster) indicates the transmission gear range. The shift lever is mounted either on the right side of the steering column (if equipped) or on the console (if equipped). You must press the brake pedal to move the shift lever out of the PARK position (refer to “Brake/ Transmission Shift Interlock System” in this section). To drive, move the shift lever from PARK or NEUTRAL to the DRIVE position. Pull the shift lever toward you when shifting into REVERSE or PARK, or when shifting out of PARK (column shift only). 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 (kilometers).


Shifting from DRIVE to PARK or REVERSE should be done only after the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake pedal when moving the shift lever between these gears. The transmission shift lever has only PARK, REVERSE, NEUTRAL, and DRIVE shift positions. Manual down- shifts can be made using the Electronic Range Select (ERS) shift control (described later in this section). Press- ing the ERS (-/+) switches (column shift) or moving the shift lever to the left or right (-/+) (console shift) while in the DRIVE position will select the highest available transmission gear, and will display that gear in the instrument cluster as 4, 3, 2, 1. Gear Ranges DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range.


STARTING AND OPERATING 381


PARK This range supplements the parking brake by locking the transmission. The engine can be started in this range. Never attempt to use PARK while vehicle is in motion. Apply the parking brake when leaving the vehicle in this range. When parking on a level surface, you may place the shift lever in the PARK position first, and then apply the parking brake When parking on a hill, 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. As an added precau- tion, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade.


382 STARTING AND OPERATING


WARNING!


• Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when parked to guard against vehicle movement and possible injury or damage. • Your vehicle could move and injure you and others if it is not completely in PARK. Check by trying to move the shift lever clockwise without first pull- ing it toward you (column shift), or rearward with the brake pedal released (floor shift), after you have placed it in PARK. Make sure the transmis- sion is in PARK before leaving the vehicle.


(Continued)


WARNING! (Continued)


• It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing 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 pressing the brake pedal. (Continued)


WARNING! (Continued)


• Unintended movement of a vehicle could injure those in or near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always apply the parking brake, shift the transmission into PARK, and remove the key fob. Once the key fob is removed, the shift lever is locked in the PARK position, securing the vehicle against unwanted movement. Furthermore, you should never leave unattended children inside a vehicle. • 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. Do not leave the key fob in the vehicle. A child could operate power windows, other controls, or move the vehicle.


STARTING AND OPERATING 383


CAUTION!


• Before moving the shift lever out of PARK, you must turn the ignition switch from the LOCK/OFF position to the ON/RUN position, and also press the brake pedal. Otherwise, damage to the shift lever could result. • DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage the drivetrain.


The following indicators should be used to ensure that you have engaged the shift lever into the PARK position: • When shifting into PARK, pull the column-mounted shift the way counterclockwise until it stops. For console-mounted shifter, move the shift lever all the way forward and to the left until it stops.


lever toward you and move it all


384 STARTING AND OPERATING


in the PARK gate.


• Release the shift lever and make sure it is fully seated • Look at the shift lever position display and verify that • With brake pedal released, verify that the shift lever


it indicates the PARK position.


will not move out of PARK.


REVERSE This range is for moving the vehicle rearward. Shift into REVERSE only after the vehicle has come to a complete stop. NEUTRAL Use this range when the vehicle is standing for prolonged periods with the engine running. The engine may be started in this range. Set the parking brake and shift the transmission into PARK if you must leave the vehicle.


WARNING!


Do not coast in NEUTRAL and never turn off the ignition to coast down a hill. These are unsafe practices that limit your response to changing traffic or road conditions. You might lose control of the vehicle and have a collision.


CAUTION!


Towing the vehicle, coasting, or driving for any other reason with shift lever in NEUTRAL can result in severe transmission damage. Refer to “Recreational Towing” in “Starting and Operating” and “Towing a Disabled Vehicle” in “What To Do In Emergencies” for further information.


DRIVE This range should be used for most city and highway driving. It provides the smoothest upshifts and down- shifts, and the best fuel economy. The transmission automatically upshifts through all forward gears. The DRIVE position provides optimum driving characteris- tics under all normal operating conditions. When frequent transmission shifting occurs (such as when operating the vehicle under heavy loading condi- tions, in hilly terrain, traveling into strong head winds, or while towing heavy trailers), use the Electronic Range Select (ERS) feature (described below) to select a lower gear range. Under these conditions, using a lower gear range will improve performance and extend transmission life by reducing excessive shifting and heat buildup. If the transmission operating temperature exceeds normal operating limits, the powertrain controller will modify the transmission shift schedule and expand the range of


STARTING AND OPERATING 385
torque converter clutch engagement. This is done to prevent transmission damage due to overheating. If the transmission becomes extremely hot, the “Trans- mission Temperature Warning Light” may illuminate and the transmission may downshift out of Overdrive until the transmission cools down. During cold temperatures, transmission operation may be modified depending on engine and transmission temperature as well as vehicle speed. This feature im- proves warm up time of the engine and transmission to achieve maximum efficiency. Engagement of the torque converter clutch is inhibited until the transmission fluid is warm (refer to the “Note” under “Torque Converter Clutch” in this section). During extremely cold tempera- tures (-20°F [-29°C] or below), operation may briefly be limited to second gear only. Normal operation will re- sume once the transmission temperature has risen to a suitable level.


386 STARTING AND OPERATING Transmission Limp Home Mode Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission remains in second gear regardless of which forward gear is selected. PARK, REVERSE, and NEUTRAL will continue to operate. Limp Home Mode allows the vehicle to be driven to an authorized dealer for service without dam- aging the transmission. In the event of a momentary problem, the transmission can be reset to regain all forward gears by performing the following steps: 1. Stop the vehicle. 2. Shift the transmission into PARK.


3. Turn the ignition switch to the LOCK/OFF position. 4. Wait approximately 10 seconds. 5. Restart the engine. 6. Shift into the desired gear range. If the problem is no longer detected, the transmission will return to normal operation. NOTE: Even if the transmission can be reset, we recom- mend that you visit your authorized dealer at your earliest possible convenience. Your authorized dealer has diagnostic equipment to determine if the problem could recur. If the transmission cannot be reset, authorized dealer service is required.


Electronic Range Select (ERS) Operation The Electronic Range Select (ERS) shift control allows the driver to limit the highest available gear when the shift lever is in the DRIVE position. For example, if you shift the transmission into 3 (third gear), the transmission will never shift above third gear, but will shift down into second and first gear normally. You can switch between DRIVE and ERS mode at any vehicle speed. When the shift lever is in the DRIVE position, the transmission will operate automatically, shifting between all available gears. Tapping the shift lever to the left (-) (console shift) or the ERS (-) switch (column shift) will activate ERS mode, display the cur- rent gear in the instrument cluster, and maintain that gear as the top available gear. Once in ERS mode, tapping the shift lever to the left (-) or right (+) (console shift) or the ERS (-) or (+) switch (column shift) will change the top available gear.


STARTING AND OPERATING 387


Column Shift Lever


388 STARTING AND OPERATING


WARNING!


Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid, causing an accident or personal injury.


Console Shift Lever


To exit ERS mode, simply press and hold the shift lever to the right (+) (console shift) or the ERS (+) switch (column shift) until “D” is once again displayed in the shift lever position indicator in the instrument cluster.


1-4


1-4


1-3


1-2


Screen Display Actual Gear(s) Allowed NOTE: To select the proper gear position for maximum deceleration (engine braking), tap the shift lever to the left (-) (console shift) or the ERS (-) switch down (column shift) repeatedly as the vehicle slows. The transmission will shift to the range from which the vehicle can best be slowed down.


perature,


Overdrive Operation The automatic transmission includes an electronically controlled Overdrive (fourth gear). The transmission will automatically shift into the Overdrive gear if the follow- ing conditions are present: • the shift lever is in the DRIVE position, • the transmission fluid has reached an adequate tem- • the engine coolant (antifreeze) has reached an ad- • vehicle speed is sufficiently high, and • the TOW/HAUL switch has not been activated; When to Use TOW/HAUL Mode When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting oc- curs, press the TOW/HAUL switch to select TOW/


equate temperature,


STARTING AND OPERATING 389
HAUL mode. 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 downshift into third gear.


TOW/HAUL Switch


NOTE: TOW/HAUL mode locks out Overdrive.


390 STARTING AND OPERATING The “TOW/HAUL Indicator Light” will illuminate in the instrument cluster to indicate that TOW/HAUL mode 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. 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 calibrated speeds. This may result in a slightly different feeling or response during normal operation in the upper gears. When the vehicle speed drops or during some accelerations, the clutch automatically disengages. NOTE: The torque converter clutch will not engage until the transmission fluid and engine coolant are warm [usually after 1 to 3 miles (1.6 to 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. Using the Electronic Range Select (ERS) feature, when the transmission is sufficiently warm, will demonstrate that the transmission is able to shift into and out of Overdrive. Six–Speed Automatic Transmission (4.7L And 5.7L Engine) — 1500 Models Only The shift lever position display (located in the instrument panel cluster) indicates the transmission gear range. The shift lever is mounted either on the right side of the steering column (if equipped) or on the console (if equipped). You must press the brake pedal to move the shift lever out of the PARK position (refer to “Brake/ Transmission Shift Interlock System” in this section). To drive, move the shift lever from PARK or NEUTRAL to the DRIVE position. Pull the shift lever toward you when shifting into REVERSE or PARK, or when shifting out of PARK (column shift only).


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 (kilometers). Shifting from DRIVE to PARK or REVERSE should be done only after the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake pedal when moving the shift lever between these gears. The transmission shift lever has only Park, Reverse, Neutral, and Drive shift positions. Manual downshifts can be made using the Electronic Range Select (ERS) shift control (refer to “Electronic Range Select (ERS)” in this section). Pressing the ERS (-/+) switches (column shift) or moving the shift lever to the left or right (-/+) (console shift) while in the DRIVE position will select the highest available transmission gear, and will display that gear in the instrument cluster as 6, 5, 4, 3, 2, 1.


STARTING AND OPERATING 391


Gear Ranges DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range. PARK This range supplements the parking brake by locking the transmission. The engine can be started in this range. Never attempt to use PARK while vehicle is in motion. Apply the parking brake when leaving vehicle in this range. When parking on a level surface, you may place the shift lever in the PARK position first, and then apply the parking brake. When parking on a hill, 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. As an added precau- tion, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade


392 STARTING AND OPERATING


WARNING!


• Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when parked to guard against vehicle movement and possible injury or damage. • Your vehicle could move and injure you and others if it is not completely in PARK. Check by trying to move the shift lever clockwise without first pull- ing it toward you (column shift), or rearward with the brake pedal released (floor shift), after you have placed it in PARK. Make sure the transmis- sion is in PARK before leaving the vehicle.


(Continued)


WARNING! (Continued)


• It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing 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 pressing the brake pedal. (Continued)


WARNING! (Continued)


• Unintended movement of a vehicle could injure those in and near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always apply the parking brake, shift the transmission into PARK, and remove the key fob. Once the key fob is removed, the shift lever is locked in the PARK position, securing the vehicle against unwanted movement. Furthermore, you should never leave unattended children inside a vehicle. • 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. Do not leave the key fob in the vehicle. A child could operate power windows, other controls, or move the vehicle.


STARTING AND OPERATING 393


CAUTION!


• Before moving the shift lever out of PARK, you must turn the ignition switch from the LOCK/OFF position to the ON/RUN position, and also press the brake pedal. Otherwise, damage to the shift lever could result. • DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage the drivetrain.


The following indicators should be used to ensure that you have engaged the shift lever into the PARK position: • When shifting into PARK, pull the column-mounted shift the way counterclockwise until it stops. For console-mounted shifter, move the shift lever all the way forward and to the left until it stops.


lever toward you and move it all


394 STARTING AND OPERATING


in the PARK gate.


• Release the shift lever and make sure it is fully seated • Look at the shift lever position display and verify that • With brake pedal released, verify that the shift lever


it indicates the PARK position.


will not move out of PARK.


REVERSE This range is for moving the vehicle rearward. Use this range only after the vehicle has come to a complete stop. NEUTRAL This range is for when the vehicle is standing for pro- longed periods with the engine running. The engine may be started in this range. Set the parking brake and shift the transmission into PARK if you must leave the vehicle.


WARNING!


Do not coast in NEUTRAL and never turn off the ignition to coast down a hill. These are unsafe practices that limit your response to changing traffic or road conditions. You might lose control of the vehicle and have a collision.


CAUTION!


Towing the vehicle, coasting, or driving for any other reason with the transmission in NEUTRAL can result in severe transmission damage. Refer to “Recre- ational Towing” in “Starting And Operating” and “Towing A Disabled Vehicle” in “What To Do In Emergencies” for further information.


DRIVE This range should be used for most city and highway driving. It provides the smoothest upshifts and down- shifts, and the best fuel economy. The transmission automatically upshifts through underdrive first and sec- ond gears, direct third gear and overdrive fourth and fifth gears. The DRIVE position provides optimum driv- ing characteristics under all normal operating conditions. To access all six available gears, you must use the Electronic Range Select (ERS) feature, described below. When frequent transmission shifting occurs (such as when operating the vehicle under heavy loading condi- tions, in hilly terrain, traveling into strong head winds, or while towing heavy trailers), use the Electronic Range Select (ERS) feature (refer to “Electronic Range Select (ERS)” in this section) to select a lower gear range. Under these conditions, using a lower gear range will improve performance and extend transmission life by reducing excessive shifting and heat buildup.


STARTING AND OPERATING 395
If the transmission operating temperature exceeds normal operating limits, the powertrain controller will modify the transmission shift schedule and expand the range of torque converter clutch engagement. This is done to prevent transmission damage due to overheating. If the transmission becomes extremely hot, the “Trans- mission Temperature Warning Light” may illuminate and the transmission may downshift out of Overdrive until the transmission cools down. NOTE: Use caution when operating a heavily loaded vehicle at low speeds (such as towing a trailer up a steep grade, or in stop-and-go traffic) during hot weather. In these conditions, torque converter slip can impose a significant additional heat load on the cooling system. Downshifting the transmission to the lowest possible gear (when climbing a grade), or shifting to NEUTRAL (when stopped in heavy traffic) can help to reduce this excess heat generation.


396 STARTING AND OPERATING During cold temperatures, transmission operation may be modified depending on engine and transmission temperature as well as vehicle speed. This feature im- proves warm up time of the engine and transmission to achieve maximum efficiency. Engagement of both the torque converter clutch and the top overdrive gear are inhibited until the transmission fluid is warm (refer to the “Note” under “Torque Converter Clutch” in this section). During extremely cold temperatures (-16°F [-27°C] or below), operation may briefly be limited to first and direct gears only. Normal operation will resume once the transmission temperature has risen to a suitable level. Transmission Limp Home Mode Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission remains in third gear regardless of which forward gear is selected.


PARK, REVERSE, and NEUTRAL will continue to oper- ate. Limp Home Mode allows the vehicle to be driven to an authorized dealer for service without damaging the transmission. In the event of a momentary problem, the transmission can be reset to regain all forward gears by performing the following steps: 1. Stop the vehicle. 2. Shift the transmission into PARK. 3. Turn the ignition switch to the LOCK/OFF position. 4. Wait approximately 10 seconds. 5. Restart the engine. 6. Shift into the desired gear range. If the problem is no longer detected, the transmission will return to normal operation.


NOTE: Even if the transmission can be reset, we recom- mend that you visit your authorized dealer at your earliest possible convenience. Your authorized dealer has diagnostic equipment to determine if the problem could recur. If the transmission cannot be reset, authorized dealer service is required. Electronic Range Select (ERS) Operation The Electronic Range Select (ERS) shift control allows the driver to limit the highest available gear when the shift lever is in the DRIVE position. For example, if you shift the transmission into 3 (third gear), the transmission will never shift above third gear, but will shift down into second and first gear normally.


STARTING AND OPERATING 397
Use of ERS (or TOW/HAUL mode) also enables an additional underdrive gear which is not normally used during through-gear accelerations. This additional gear can improve vehicle performance and cooling capability when towing a trailer on certain grades. In ERS mode, gears 1 though 3 are underdrive gears, and ERS 4 is direct drive. ERS 5 and 6 (Overdrive gears) are the same as the normal fourth and fifth gears. You can switch between DRIVE and ERS mode at any vehicle speed. When the shift lever is in the DRIVE position, the transmission will operate automatically, shifting between all available gears. Tapping the ERS (-) switch (column shift) or the shift lever to the left (-) (console shift) will activate ERS mode, display the current gear in the instrument cluster, and maintain that gear as the top available gear. For example, if you are in DRIVE and are in third (direct) gear, when you tap the shift lever/switch one time in the (-) direction, the display will show 4 (ERS 4 is direct gear). Another tap down (-) will


398 STARTING AND OPERATING shift the transmission down to ERS 3 (the added under- drive gear). Once in ERS mode, tapping ERS (-) or (+) will change the top available gear.


Column Shift Lever


Console Shift Lever


To exit ERS mode, simply press and hold the shift lever to the right (+) (console shift) or the ERS (+) switch (column shift) until “D” is once again displayed in the shift lever position indicator in the instrument cluster.


WARNING!


Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid, causing and accident or personal injury.


1-2


1, 2, 4, 5


6 D 1-5


1-3 1, 2,


Screen Display Actual Gear(s) Allowed NOTE: To select the proper gear position for maximum deceleration (engine braking), simply press and hold the shift lever to the left (-) (console shift) or the ERS (-) switch down (column shift). The transmission will shift to the range from which the vehicle can best be slowed down.


1, 2, 4–6


STARTING AND OPERATING 399


perature,


Overdrive Operation The automatic transmission includes an electronically controlled Overdrive (fourth and fifth gears). The trans- mission will automatically shift into the Overdrive gear if the following conditions are present: • the shift lever is in the DRIVE position, • the transmission fluid has reached an adequate tem- • the engine coolant (antifreeze) has reached an ad- • vehicle speed is sufficiently high, and • the TOW/HAUL switch has not been activated. When To Use TOW/HAUL Mode When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting oc- curs, press the TOW/HAUL switch to select TOW/


equate temperature,


400 STARTING AND OPERATING HAUL mode. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting. When operating in TOW/HAUL mode, transmission upshifts are delayed, and the trans- mission will automatically downshift (for engine brak- ing) during steady braking maneuvers.


TOW/HAUL Switch


The “TOW/HAUL Indicator Light” will illuminate in the instrument cluster to indicate that TOW/HAUL mode 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. 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 calibrated speeds. This may result in a slightly different feeling or response during normal operation in the upper gears. When the vehicle speed drops or during some accelerations, the clutch automatically disengages. NOTE: • The torque converter clutch will not engage, and the transmission will not shift into the top overdrive gear, until the transmission fluid and engine coolant are


warm [usually after 1 to 3 miles (1.6 to 4.8 km) of driving]. Because top gear is disabled, and the engine speed is higher when the torque converter clutch is not engaged, it may seem as if the transmission is not shifting properly when cold. This is normal. Using the Electronic Range Select (ERS) feature, when the trans- mission is sufficiently warm, will demonstrate that the transmission is able to shift into and out of Overdrive. • If the vehicle has not been driven for several days, the first few seconds of operation after shifting the trans- mission 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 con- verter will refill within five seconds after starting the engine.


STARTING AND OPERATING 401


Six–Speed Automatic Transmission (5.7L Engine) — 2500 Models Only The shift lever position display (located in the instrument panel cluster) indicates the transmission gear range. The shift lever is mounted on the right side of the steering column. You must press the brake pedal to move the shift lever out of the PARK position (refer to “Brake/ Transmission Shift Interlock System” in this section). To drive, move the shift lever from PARK or NEUTRAL to the DRIVE position. Pull the shift lever toward you when shifting into REVERSE or PARK, or when shifting out of PARK. 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 (kilometers).


402 STARTING AND OPERATING Shifting from DRIVE to PARK or REVERSE should be done only after the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake pedal when moving the shift lever between these gears. The transmission shift lever has only PARK, REVERSE, NEUTRAL, and DRIVE shift positions. Manual down- shifts can be made using the Electronic Range Select (ERS) shift control (refer to “Electronic Range Select (ERS)” in this section). Pressing the ERS (-/+) switches on the shift lever while in the DRIVE position will select the highest available transmission gear, and will display that gear in the instrument cluster as 6, 5, 4, 3, 2, 1. Gear Ranges DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range.


PARK This range supplements the parking brake by locking the transmission. The engine can be started in this range. Never attempt to use PARK while vehicle is in motion. Apply the parking brake when leaving vehicle in this range. When parking on a level surface, you may place the shift lever in the PARK position first, and then apply the parking brake. When parking on a hill, 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. As an added precau- tion, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade


WARNING!


• Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when parked to guard against vehicle movement and possible injury or damage. • Your vehicle could move and injure you and others if it is not completely in PARK. Check by trying to move the shift lever clockwise without first pull- ing it toward you after you have placed it in PARK. Make sure the transmission is in PARK before leaving the vehicle.


(Continued)


STARTING AND OPERATING 403


WARNING! (Continued)


• It is dangerous to move the shift lever out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing 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 pressing the brake pedal. (Continued)


404 STARTING AND OPERATING


WARNING! (Continued)


• Unintended movement of a vehicle could injure those in and near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always apply the parking brake, shift the transmission into PARK, and remove the key fob. Once the key fob is removed, the shift lever is locked in the PARK position, securing the vehicle against unwanted movement. Furthermore, you should never leave unattended children inside a vehicle. • 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. Do not leave the key fob in the vehicle. A child could operate power windows, other controls, or move the vehicle.


CAUTION!


• Before moving the shift lever out of PARK, you must turn the ignition switch from the LOCK/OFF position to the ON/RUN position, and also press the brake pedal. Otherwise, damage to the shift lever could result. • DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage the drivetrain.


The following indicators should be used to ensure that you have engaged the shift lever into the PARK position: • When shifting into PARK, pull the shift lever toward you and move it all the way counterclockwise until it stops. • Release the shift lever and make sure it is fully seated


in the PARK gate.


• Look at the shift lever position display and verify that • With brake pedal released, verify that the shift lever


it indicates the PARK position.


will not move out of PARK.


REVERSE This range is for moving the vehicle rearward. Use this range only after the vehicle has come to a complete stop. NEUTRAL Use this range when the vehicle is standing for prolonged periods with the engine running. The engine may be started in this range. Set the parking brake and shift the transmission into PARK if you must leave the vehicle.


STARTING AND OPERATING 405


WARNING!


Do not coast in NEUTRAL and never turn off the ignition to coast down a hill. These are unsafe practices that limit your response to changing traffic or road conditions. You might lose control of the vehicle and have a collision.


CAUTION!


Towing the vehicle, coasting, or driving for any other reason with the transmission in NEUTRAL can result in severe transmission damage. Refer to “Recre- ational Towing” in “Starting And Operating” and “Towing A Disabled Vehicle” in “What To Do In Emergencies” for further information.


406 STARTING AND OPERATING DRIVE This range should be used for most city and highway driving. It provides the smoothest upshifts and down- shifts, and the best fuel economy. The transmission automatically upshifts through underdrive first, second, and third gears, direct fourth gear and overdrive fifth and sixth gears. The DRIVE position provides optimum driv- ing characteristics under all normal operating conditions. When frequent transmission shifting occurs (such as when operating the vehicle under heavy loading condi- tions, in hilly terrain, traveling into strong head winds, or while towing heavy trailers), use the Electronic Range Select (ERS) feature (refer to “Electronic Range Select (ERS)” in this section) to select a lower gear range. Under these conditions, using a lower gear range will improve performance and extend transmission life by reducing excessive shifting and heat buildup.


If the transmission operating temperature exceeds normal operating limits, the powertrain controller will modify the transmission shift schedule and expand the range of torque converter clutch engagement. This is done to prevent transmission damage due to overheating. If the transmission becomes extremely hot, the “Trans- mission Temperature Warning Light” may illuminate and the transmission may downshift out of Overdrive until the transmission cools down. NOTE: Use caution when operating a heavily loaded vehicle at low speeds (such as towing a trailer up a steep grade, or in stop-and-go traffic) during hot weather. In these conditions, torque converter slip can impose a significant additional heat load on the cooling system. Downshifting the transmission to the lowest possible gear (when climbing a grade), or shifting to NEUTRAL (when stopped in heavy traffic) can help to reduce this excess heat generation.


During cold temperatures, transmission operation may be modified depending on engine and transmission temperature as well as vehicle speed. This feature im- proves warm up time of the engine and transmission to achieve maximum efficiency. Engagement of both the torque converter clutch and the top overdrive gear are inhibited until the transmission fluid is warm (refer to the “Note” under “Torque Converter Clutch” in this section). During extremely cold temperatures (-16°F [-27°C] or below), operation may briefly be limited to first and direct gears only. Normal operation will resume once the transmission temperature has risen to a suitable level. Transmission Limp Home Mode Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission remains in fourth gear regardless of which forward gear is selected. PARK, REVERSE, and NEUTRAL will continue


STARTING AND OPERATING 407
to operate. Limp Home Mode allows the vehicle to be driven to an authorized dealer for service without dam- aging the transmission. In the event of a momentary problem, the transmission can be reset to regain all forward gears by performing the following steps: 1. Stop the vehicle. 2. Shift the transmission into PARK. 3. Turn the ignition switch to the LOCK/OFF position. 4. Wait approximately 10 seconds. 5. Restart the engine. 6. Shift into the desired gear range. If the problem is no longer detected, the transmission will return to normal operation.


408 STARTING AND OPERATING NOTE: Even if the transmission can be reset, we recom- mend that you visit your authorized dealer at your earliest possible convenience. Your authorized dealer has diagnostic equipment to determine if the problem could recur. If the transmission cannot be reset, authorized dealer service is required. Electronic Range Select (ERS) Operation The Electronic Range Select (ERS) shift control allows the driver to limit the highest available gear when the shift lever is in the DRIVE position. For example, if you shift the transmission into 3 (third gear), the transmission will never shift above third gear, but will shift down into second and first gear normally. You can switch between DRIVE and ERS mode at any vehicle speed. When the shift lever is in the DRIVE position, the transmission will operate automatically, shifting between all available gears. Tapping the ERS (-)


switch will activate ERS mode, display the current gear in the instrument cluster, and maintain that gear as the top available gear. Once in ERS mode, tapping ERS (-) or (+) will change the top available gear.


Column Shift Lever


To exit ERS mode, simply press and hold the ERS (+) switch until “D” is once again displayed in the shift lever position indicator in the instrument cluster.


WARNING!


Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid, causing an accident or personal injury.


1-5


1-3


1-2


1-4


Screen Display Actual Gear(s) Allowed NOTE: To select the proper gear position for maximum deceleration (engine braking), simply press and hold the ERS (-) switch down. The transmission will shift to the range from which the vehicle can best be slowed down.


6 D 1-6 1-6


STARTING AND OPERATING 409


perature,


Overdrive Operation The automatic transmission includes an electronically controlled Overdrive (fifth and sixth gears). The trans- mission will automatically shift into the Overdrive gear if the following conditions are present: • the shift lever is in the DRIVE position, • the transmission fluid has reached an adequate tem- • the engine coolant (antifreeze) has reached an ad- • vehicle speed is sufficiently high, and • the TOW/HAUL switch has not been activated. When To Use TOW/HAUL Mode When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting oc- curs, press the TOW/HAUL switch to select TOW/


equate temperature,


410 STARTING AND OPERATING HAUL mode. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting. When operating in TOW/HAUL mode, transmission upshifts are delayed, and the trans- mission will automatically downshift (for engine brak- ing) during steady braking maneuvers.


TOW/HAUL Switch


The “TOW/HAUL Indicator Light” will illuminate in the instrument cluster to indicate that TOW/HAUL mode 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. 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 calibrated speeds. This may result in a slightly different feeling or response during normal operation in the upper gears. When the vehicle speed drops or during some accelerations, the clutch automatically disengages. NOTE: • The torque converter clutch will not engage, and the transmission will not shift to sixth gear, until the


transmission fluid and engine coolant are warm [usu- ally after 1 to 3 miles (1.6 to 4.8 km) of driving]. Because sixth gear is disabled, and engine speed is higher when the torque converter clutch is not en- gaged, it may seem as if the transmission is not shifting properly when cold. This is normal. Using the Electronic Range Select (ERS) feature, when the trans- mission is sufficiently warm, will demonstrate that the transmission is able to shift into and out of Overdrive. • If the vehicle has not been driven for several days, the first few seconds of operation after shifting the trans- mission 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 con- verter will refill within five seconds after starting the engine.


STARTING AND OPERATING 411


FOUR-WHEEL DRIVE OPERATION — IF EQUIPPED Four-wheel drive trucks are equipped with either a manually shifted transfer case or an electronically shifted transfer case. Refer to the operating instructions for your transfer case, located in this section for further informa- tion. Manually Shifted Transfer Case – If Equipped The transfer case provides four mode positions. • Two-wheel drive high range (2H) • Four-wheel drive high range (4H) • Neutral (N) • Four-wheel drive low range (4L) This transfer case is intended to be driven in the 2H position for normal street and highway conditions such as dry, hard surfaced roads.


412 STARTING AND OPERATING When additional traction is required, the 4H and 4L positions can be used to lock the front and rear drive- shafts together and force the front and rear wheels to rotate at the same speed. This is accomplished by simply moving the shift lever to the desired positions. The 4H and 4L positions are intended for loose, slippery road surfaces only. Driving in the 4H and 4L positions on dry, hard surfaced roads may cause increased tire wear and damage to the driveline components. The “Transfer Case Position Indicator Light” in the instrument cluster will alert the driver that the vehicle is in four-wheel drive and that the front and rear drive- shafts are locked together. This light will illuminate when the transfer case is shifted into either the 4H or 4L position. There is no light for the 2H or NEUTRAL positions.


When operating your vehicle in 4L, the engine speed is approximately three times that of the 2H or 4H positions 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 can cause damage to the drivetrain. NOTE: Do not attempt to make a shift while only the front or rear wheels are spinning. The transfer case is not equipped with a synchronizer and therefore the front and rear driveshaft speeds must be equal for the shift to take place. Shifting while only the front or rear wheels are spinning can 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.


NOTE: Delayed shifts out of four-wheel drive may be experienced due to uneven tire wear, low or uneven tire pressures, excessive vehicle loading, or cold tempera- tures.


WARNING!


You or others could be injured if you leave the vehicle unattended with the transfer case in the NEUTRAL position without first fully engaging the parking brake. The transfer case 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.


STARTING AND OPERATING 413
For additional information on the appropriate use of each transfer case mode position, see the information below: 2H Rear-Wheel Drive High Range - This range is for normal street and highway driving on dry hard surfaced roads. 4H Four-Wheel Drive High Range - This range locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. Additional traction for loose, slippery road surfaces only. Neutral - This range disengages the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle. Refer to “Recreational Towing” in “Starting and Operating” for further information.


414 STARTING AND OPERATING 4L Four-Wheel Drive Low Range - This range locks the front and rear driveshafts together forcing 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 Procedure – Manually Shifted Transfer Case 2H ⇔ 4H Shifting between 2H and 4H can be made with the vehicle stopped or in motion. If the vehicle is in motion, shifts can be made up to 55 mph (88 km/h). With the vehicle in motion, the transfer case will engage/ disengage faster if you momentarily release the accelera- tor pedal after completing the shift. Apply a constant force when shifting the transfer case lever.


2H Or 4H ⇔ 4L With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift the transmission into NEUTRAL. While the vehicle is coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer case lever firmly to the desired position. Do not pause in transfer case NEUTRAL. NOTE: • Pausing in transfer case NEUTRAL in vehicles equipped with an automatic transmission may require shutting the engine OFF to avoid gear clash while completing the shift. If difficulty occurs, shift the transmission into NEUTRAL, hold foot on brake, and turn the engine OFF. Make shift to the desired mode. • Shifting into or out of 4L 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 2 to 3 mph (3 to 5 km/h). Avoid attempting to engage or disengage 4L with the vehicle moving faster than 2 to 3 mph (3 to 5 km/h). • Do not attempt to shift into or from 4L while the


transmission is in gear.


Transfer Case Position Indicator Light The “Transfer Case Position Indicator Light” in the instrument cluster is used to alert the driver that the front axle is fully engaged and all four wheels are driving. Electronically Shifted Transfer Case (Four-Position Switch) – If Equipped This is an electronic shift transfer case and is operated by the 4WD Control Switch (Transfer Case Switch), which is located on the instrument panel.


STARTING AND OPERATING 415


Transfer Case Switch (Four-Position)


This electronically shifted transfer case provides four mode positions: • Two-wheel drive high range (2WD) • Four-wheel drive lock range (4WD LOCK) • Four-wheel drive low range (4WD LOW) • Neutral (NEUTRAL)


416 STARTING AND OPERATING This electronically shifted transfer case is designed to be driven in the two-wheel drive position (2WD) for normal street and highway conditions on dry, hard surfaced roads. When additional traction is required, the transfer case 4WD LOCK and 4WD LOW positions can be used to lock the front and rear driveshafts together, forcing the front and rear wheels to rotate at the same speed. This is accomplished by rotating the 4WD Control Switch to the desired position. Refer to “Shifting Procedure” in this section for specific shifting instructions. The 4WD LOCK and 4WD LOW positions are designed for loose, slippery road surfaces only. Driving in the 4WD LOCK and 4WD LOW positions on dry hard surfaced roads may cause increased tire wear and damage to the driveline compo- nents. NOTE: The transfer case NEUTRAL position is selected by pressing the recessed button located on the lower left


hand corner of the 4WD Control Switch. The transfer case NEUTRAL position is to be used for recreational towing only. Refer to “Recreational Towing” in “Starting and Operating” for further information. Transfer Case Position Indicator Lights The Transfer Case Position Indicator Lights (4WD and 4LOW) are located in the instrument cluster and indicate the current and desired transfer case selection. When you select a different transfer case position, the indicator lights will do the following: If All Shift Conditions Are Met: 1. The current position indicator light will turn OFF. 2. The selected position indicator light will flash until the transfer case completes the shift.


3. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. If One Or More Shift Conditions Are Not Met: 1. The indicator light for the current position will remain ON. 2. The newly selected position indicator light will con- tinue to flash. 3. The transfer case will not shift. NOTE: Before retrying a selection, make certain that all the necessary requirements for selecting a new transfer case position have been met. To retry the selection, turn the control knob back to the current position, wait five seconds, and retry selection. To find the shift require- ments, refer to the ⬙Shifting Procedure⬙ for your transfer case, located in this section.


STARTING AND OPERATING 417
The “SVC 4WD Warning Light” monitors the electronic shift four-wheel drive system. If this light remains on after engine start up or illuminates during driving, it means that the four-wheel drive system is not function- ing properly and that service is required.


WARNING!


Always engage the parking brake when powering down the vehicle if the “SVC 4WD Warning Light” is illuminated. Not engaging the parking brake may allow the vehicle to roll, which may cause personal injury.


NOTE: Do not attempt to make a shift while only the front or rear wheels are spinning, as this can cause damage to driveline components.


418 STARTING AND OPERATING When operating your vehicle in 4WD LOW, the engine speed is approximately three times that of the 2WD or 4WD LOCK positions 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 in tire size can cause damage to the drivetrain. 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.


WARNING!


You or others could be injured if you leave the vehicle unattended with the transfer case in the NEUTRAL position without first fully engaging the parking brake. The transfer case 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.


For additional information on the appropriate use of each transfer case mode position, see the information below: 2WD Rear Wheel Drive High Range - This range is for normal street and highway driving on dry, hard surfaced roads.


4WD LOCK Four-Wheel Drive Lock Range - This range locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. This range provides additional traction for loose, slippery road surfaces only. 4WD LOW Four-Wheel Drive Low Range - This range provides low speed four-wheel drive. It locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. This range provides additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h). Neutral - This range disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle. Refer to “Recreational Towing” in “Starting and Operating” for further

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