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Towing
Condition Wheels
OFF The Ground 2WD Models
4WD Models
Flat Tow NONE If transmission is operable:
•Transmission in NEUTRAL
• 30 mph (48 km/h) max speed
• 15 miles (24 km) maxdistance
(6–speed transmission)
• 30 miles (48 km) maxdistance
(8–speed transmission) See instructions in “Recreational Tow-
ing” under “Starting and Operating”
•
Automatic Transmission in PARK
• Manual Transmission in gear
(NOT NEUTRAL)
• Transfer Case in NEUTRAL (N)
• To w i n forward direction
Wheel Lift Or Dolly To w Front
NOT ALLOWED
Rear OK NOT ALLOWED
Flatbed ALL BEST METHOD BEST METHOD
Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use only tow bars and other
equipment designed for this purpose, following equipment
manufacturer ’s instructions. Use of safety chains is man-
datory. Attach a tow bar or other towing device to main
structural members of the vehicle, not to bumpers or
associated brackets. State and local laws regarding vehicles
under tow must be observed. If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
mode, not the ACC mode.
If the key fob is unavailable or the vehicle’s battery is
discharged, refer to ”Manual Park Release” or “Gear
Selector Override” in this section for instructions on shift-
ing the automatic transmission out of PARK for towing.
7
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CAUTION!
•Do not use sling type equipment when towing.
Vehicle damage may occur.
• When securing the vehicle to a flat bed truck, do not
attach to front or rear suspension components. Dam-
age to your vehicle may result from improper towing.
Two-Wheel Drive Models
The manufacturer recommends towing your vehicle with
all four wheels OFFthe ground using a flatbed.
If flatbed equipment is not available, and the transmission
is operable, the vehicle may be towed (with rear wheels on
the ground) under the following conditions:
• The transmission must be in NEUTRAL. Refer to
Manual Park Release in this section for instructions on
shifting the 8–speed transmission to NEUTRAL when
the engine is OFF.
• The towing speed must not exceed 30 mph (48 km/h).
• The towing distance must not exceed 15 miles (24 km)
for 6–speed transmission, or 30 miles (48 km) for
8–speed transmission. If the transmission is not operable, or the vehicle must be
towed faster than 30 mph (48 km/h) or farther than
15 miles (24 km) for 6–speed transmission, or 30 miles
(48 km) for 8–speed transmission, tow with the rear wheels
OFF
the ground. Acceptable methods are to tow the vehicle
on a flatbed, or with the front wheels raised and the rear
wheels on a towing dolly, or (when using a suitable
steering wheel stabilizer to hold the front wheels in the
straight position) with the rear wheels raised and the front
wheels on the ground.
CAUTION!
Towing this vehicle in violation of the above require-
ments can cause severe engine and/or transmission
damage. Damage from improper towing is not covered
under the New Vehicle Limited Warranty.
Four-Wheel Drive Models
The manufacturer recommends towing with all wheels
OFF the ground. Acceptable methods are to tow the vehicle
on a flatbed or with one end of vehicle raised and the
opposite end on a towing dolly.
512 IN CASE OF EMERGENCY
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If flatbed equipment is not available, and the transfer case
is operable, the vehicle may be towed (in the forward
direction, withALLwheels on the ground), IFthe transfer
case is in NEUTRAL and the transmission is in PARK (for
automatic transmissions) or in gear (NOT in NEUTRAL,
for manual transmissions). Refer to “Recreational Towing”
in “Starting And Operating” for further information and
detailed instructions.
CAUTION!
• Front or rear wheel lifts must not be used (if the
remaining wheels are on the ground). Internal dam-
age to the transmission or transfer case will occur if
a front or rear wheel lift is used when towing.
• Towing this vehicle in violation of the above require-
ments can cause severe transmission and/or transfer
case damage. Damage from improper towing is not
covered under the New Vehicle Limited Warranty.
Emergency Tow Hooks — If Equipped
Your vehicle may be equipped with emergency tow hooks.
NOTE: For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of damage
to the vehicle.
WARNING!
• Do not use a chain for freeing a stuck vehicle. Chains
may break, causing serious injury or death.
• Stand clear of vehicles when pulling with tow hooks.
Tow straps may become disengaged, causing serious
injury.
CAUTION!
Tow hooks are for emergency use only, to rescue a
vehicle stranded off road. Do not use tow hooks for
tow truck hookup or highway towing. You could
damage your vehicle.
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ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS)
This vehicle is equipped with an Enhanced Accident
Response System.
Please refer to “Occupant Restraint Systems” in “Safety”
for further information on the Enhanced Accident Re-
sponse System (EARS) function.
EVENT DATA RECORDER (EDR)
This vehicle is equipped with an Event Data Recorder
(EDR). The main purpose of an EDR is to record data that
will assist in understanding how a vehicle’s systems per-
formed under certain crash or near crash-like situations,
such as an air bag deployment or hitting a road obstacle.
Please refer to “Occupant Restraint Systems” in “Safety”
for further information on the Event Data Recorder (EDR).
514 IN CASE OF EMERGENCY
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SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................517
▫ Maintenance Plan ..................... .518
▫ Heavy Duty Use Of The Vehicle ............522
ENGINE COMPARTMENT .................523
▫ 3.6L Engine ..........................523
▫ 5.7L Engine ..........................524
▫ 6.4L Engine ..........................525
▫ Checking Oil Level — Gas Engine ...........526
▫ Adding Washer Fluid ...................526
▫ Maintenance-Free Battery .................526
DEALER SERVICE .......................527
▫ Engine Oil — Gas Engine .................528
▫ Engine Oil Filter .......................530
▫ Engine Air Cleaner Filter .................531 ▫
Air Conditioner Maintenance ..............533
▫ Front Driveshaft Lubrication — 2500/3500
(Four-Wheel Drive Models Only) ............539
▫ Accessory Drive Belt Inspection ............540
▫ Body Lubrication ..................... .541
▫ Windshield Wiper Blades .................542
▫ Exhaust System ........................545
▫ Cooling System ........................546
▫ Brake System ........................ .552
▫ Automatic Transmission ..................553
▫ Rear Axle And 4x4 Front Driving Axle Fluid
Level ...............................556
▫ Transfer Case ........................ .557
HOISTING ............................558
TIRES ............................... .558
8
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▫Tire Safety Information ..................558
▫ Tires — General Information ..............568
▫ Tire Types ............................574
▫ Spare Tires — If Equipped ................575
▫ Wheel And Wheel Trim Care ..............578
▫ Tire Chains (Traction Devices) .............579
▫ Tire Rotation Recommendations ............580
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ..................583
▫ Treadwear ............................583
▫ Traction Grades ........................583
▫ Temperature Grades .....................583
STORING THE VEHICLE ..................584
BODYWORK .......................... .584
▫ Protection From Atmospheric Agents ........584
▫ Body And Underbody Maintenance ..........585
▫ Preserving The Bodywork .................585
INTERIORS ............................587
▫ Seats And Fabric Parts ...................587
▫ Plastic And Coated Parts ..................588
▫ Leather Parts ..........................589
▫ Glass Surfaces ........................ .590
516 SERVICING AND MAINTENANCE
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SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Oil Change Required” message is displayed.
Severe Operating Conditions can cause the change oil
message to illuminate as early as 3,500 miles (5,600 km)
since last reset. Have your vehicle serviced as soon as
possible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other than
your authorized dealer, the message can be reset by
referring to the steps described under “Instrument Cluster
Display” in “Getting To Know Your Instrument Panel”.1500 Models Only
NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km), twelve months
or 350 hours of engine run time, whichever comes first. The
350 hours of engine run or idle time is generally only a
concern for fleet customers.
2500 – 3500 Models Only
NOTE: Under no circumstances should oil change
intervals exceed 8,000 miles (13,000 km), twelve months or
350 hours of engine run time, whichever comes first. The
350 hours of engine run or idle time is generally only a
concern for fleet customers.
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SERVICING AND MAINTENANCE 517
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Severe Duty All Models
NOTE:Change Engine Oil at 4,000 miles (6,500 km) or 350
hours of engine run time if the vehicle is operated in a
dusty and off road environment or is operated predomi-
nantly at idle, or only very low engine RPM’s. This type of
vehicle use is considered Severe Duty.
Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check tire pressure and look for unusual wear or
damage. Rotate tires at the first sign of irregular wear,
even if it occurs before the oil indicator system turns on.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering (2500/3500 Models
Only) and automatic transmission (six-speed only) and
fill as needed
• Check function of all interior and exterior lightsMaintenance Plan
Required Maintenance
Refer to the Maintenance Plan on the following pages for
required maintenance.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular
wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and
park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
• Lube the front drive shaft fitting (2500/3500 (4x4)
models only).
518 SERVICING AND MAINTENANCE