Page 355 of 560

CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (H), pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
MANUAL PARK RELEASE — 8-SPEED TRANSMISSION
WARNING!
Always secure your vehicle by fully applying the park-
ing brake before activating the Manual Park Release. In
addition, you should be seated in the driver’s seat with
your foot firmly on the brake pedal when activating the
Manual Park Release. Activating the Manual Park Re-
lease will allow your vehicle to roll away if it is not
secured by the parking brake, or by proper connection to
a tow vehicle. Activating the Manual Park Release on an
unsecured vehicle could lead to serious injury or death
for those in or around the vehicle.
In order to move the vehicle in cases where the transmis-
sion will not shift out of PARK (such as a dead battery), a
Manual Park Release is available.
Follow these steps to use the Manual Park Release:
1. Firmly apply the parking brake.
2. Remove the console storage bin.
3. Remove the plastic cover under the bin by using the slot provided to access the Manual Park Release lever.
4. Using a small screwdriver or similar tool, fish the tether strap up through the opening in the console base.
Console Storage Bin
7
IN CASE OF EMERGENCY 353
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CAUTION!(Continued)
•When “rocking” a stuck vehicle by shifting between
DRIVE and REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
(Continued)
CAUTION! (Continued)
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service.
Towing
Condition Wheels OFF
The Ground RWD MODELS
AWD MODELS
Flat Tow NONEIf transmission is operable:
• Transmission in NEUTRAL
• 30 mph (48 km/h) maxspeed
• 30 miles (48 km) maxdistance NOT ALLOWED
Wheel Lift Or Dolly Tow Front
NOT RECOMMENDED (but, if
used, same limitations as above) NOT ALLOWED
Rear NOT RECOMMENDED NOT RECOMMENDED, but, if used:
•Ignition in ON/RUN mode
• Transmission in NEUTRAL
(NOT in PARK)
Flatbed ALL BEST METHOD BEST METHOD
356 IN CASE OF EMERGENCY
Page 361 of 560

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................361
▫ 3.6L And 5.7L Engines ...................361
▫ 6.4L Engine ......................... .365
ENGINE COMPARTMENT .................370
▫ 3.6L Engine ......................... .370
▫ 5.7L Engine ......................... .371
▫ 6.4L Engine ......................... .372
▫ Checking Oil Level — 3.6L And 5.7L Engine . . .373
▫ Checking Oil Level — 6.4L Engine ...........373
▫ Adding Washer Fluid ...................374
▫ Maintenance-Free Battery .................374
DEALER SERVICE ...................... .376
▫ Engine Oil .......................... .376▫
Engine Oil Filter ...................... .379
▫ Engine Air Cleaner Filter .................379
▫ Air Conditioner Maintenance ..............380
▫ Accessory Drive Belt Inspection ............383
▫ Body Lubrication ..................... .384
▫ Windshield Wiper Blades .................384
▫ Exhaust System ....................... .387
▫ Cooling System ....................... .389
▫ Brake System ........................ .393
▫ Automatic Transmission ..................395
▫ All Wheel Drive (AWD) — If Equipped .......396
▫ Rear Axle ........................... .396
RAISING THE VEHICLE ..................397
8
Page 363 of 560

SCHEDULED SERVICING
3.6L And 5.7L Engines
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 “Change Oil” or “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 (800 km).
The “Oil Change Required” message will be displayed in
the instrument cluster and a single chime will sound,
indicating that an oil change is necessary.
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 “Instrument Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), 12 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.
Severe Duty All Models
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 predominantly at idle
or only very low engine RPM’s. This type of vehicle use is
considered Severe Duty.
8
SERVICING AND MAINTENANCE 361
Page 364 of 560

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 your next scheduled service.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering (if equipped) and
fill as needed.
• Check function of all interior and exterior lights.
Maintenance Plan — 3.6L And 5.7L
Required Maintenance Intervals:
Refer to the maintenance schedules on the following page
for the required maintenance intervals.
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 your next scheduled service
• Inspect battery and clean and tighten terminals as
required
• 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
362 SERVICING AND MAINTENANCE
Page 366 of 560

Mileage or time passed (whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Change the transfer case fluid; if using your vehicle
for any of the following: police, taxi, fleet, off-road, or
frequent trailer towing. (All Wheel Drive Only). XX
Change the rear axle fluid and on models equipped
with All Wheel Drive (AWD) change the front axle
fluid if using your vehicle for any of the following:
police, taxi, fleet, off-road, or frequent trailer towing. XX X
Inspect and replace PCV valve if necessary. X
** The spark plug change interval is mileage based only,
yearly intervals do not apply.
WARNING!
• You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
(Continued)
WARNING! (Continued)
have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your vehicle
could result in a component malfunction and effect
vehicle handling and performance. This could cause
an accident.
364 SERVICING AND MAINTENANCE
Page 367 of 560

Heavy Duty Use Of The Vehicle
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 predominately at idle or
only very low engine RPM’s. This type of vehicle use is
considered Severe Duty.
6.4L Engine
The scheduled maintenance services listed in this manual
must be done at the times or mileages specified to protect
your vehicle warranty and ensure the best vehicle perfor-
mance and reliability. More frequent maintenance may be
needed for vehicles in severe operating conditions, such as
dusty areas and very short trip driving. Inspection and
service should also be done anytime a malfunction is
suspected.
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
A “Oil Change Required” message will be displayed in the
instrument cluster and a single chime will sound, indicat-
ing that an oil change is necessary.Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Have your vehicle serviced as
soon as possible, within the next 500 miles (800 km).
NOTE:
•
The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s oil
if it has been six months since your last oil change, even
if the oil change indicator message is NOT illuminated.
• Change your engine oil more often if you drive your
vehicle off-road/track usage for an extended period of
time.
• Under no circumstances should oil change intervals
exceed 6,000 miles (10,000 km) or six months, whichever
comes first.
An 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
an authorized dealer, the message can be reset by referring
to the steps described under “Instrument Cluster Display”
in “Getting To Know Your Instrument Panel” for further
information.
8
SERVICING AND MAINTENANCE 365
Page 371 of 560
WARNING!
•You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your vehicle
could result in a component malfunction and effect
vehicle handling and performance. This could cause
an accident.
8
SERVICING AND MAINTENANCE 369