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SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................441
▫ Maintenance Plan ...................... .443
▫ Heavy Duty Use Of The Vehicle ............444
ENGINE COMPARTMENT .................445
▫ 3.6L Engine ......................... .445
▫ 5.7L Engine ......................... .446
▫ 3.0L Diesel Engine ..................... .447
▫ Checking Oil Level — Gasoline Engine .......448
▫ Adding Washer Fluid ...................448
▫ Maintenance-Free Battery .................448
DEALER SERVICE ...................... .449
▫ Engine Oil .......................... .450
▫ Engine Oil Filter ...................... .452
▫ Engine Air Cleaner Filter .................452 ▫
Air Conditioner Maintenance ..............454
▫ Accessory Drive Belt Inspection ............458
▫ Body Lubrication ..................... .459
▫ Windshield Wiper Blades .................460
▫ Exhaust System ....................... .465
▫ Cooling System ....................... .467
▫ Brake System ........................ .471
▫ Automatic Transmission ..................472
▫ Front/Rear Axle Fluid ...................474
▫ Transfer Case ........................ .475
RAISING THE VEHICLE ..................475
TIRES ............................... .475
▫ T
ire Safety Information ..................475
▫ Tires — General Information ..............483
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▫Tire Types ........................... .489
▫ Spare Tires — If Equipped ................490
▫ Wheel And Wheel Trim Care ..............492
▫ Tire Chains (Traction Devices) .............494
▫ Tire Rotation Recommendations ............495
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES ..........496
▫ Treadwear ........................... .496
▫ Traction Grades ....................... .496
▫ Temperature Grades .....................496
STORING THE VEHICLE ..................497
BODYWORK .......................... .498
▫ Protection From Atmospheric Agents ........498
▫ Body And Underbody Maintenance ..........498
▫ Preserving The Bodywork .................499
INTERIORS ........................... .500
▫ Seats And Fabric Parts ...................500
▫ Plastic And Coated Parts ..................501
▫ Leather Parts ......................... .501
▫ Glass Surfaces ........................ .502
440 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.
NOTE:Under no circumstances should oil change inter-
vals 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. Once A Month Or Before A Long Trip:
•
Check engine oil level.
• Check windshield washer fluid level.
• Check the tire inflation pressures and look for unusual
wear or damage.
• Check the fluid levels of the coolant reservoir, brake
master cylinder and fill as needed.
• Check function of all interior and exterior lights
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SERVICING AND MAINTENANCE 441
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Required Maintenance
Refer to the Maintenance Schedules 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 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.
442 SERVICING AND MAINTENANCE
Page 445 of 633
Maintenance Plan
Mileage or time passed (whichevercomes 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
Additional Inspections
Inspect the CV joints. XX X X X
Inspect front suspension, tie rod ends,
and replace if necessary. XXX X X X X
Inspect the front and rear axle fluid, change
if using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.XXX X X X X
Inspect the brake linings, parking brake
function. XXX X X X X
Inspect transfer case fluid. XX X X
Additional Maintenance
Replace engine air filter. XX X X X
Replace the air conditioning filter. X X X XX XX
Replace spark plugs.** X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first.XX
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SERVICING AND MAINTENANCE 443
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Mileage or time passed (whichevercomes 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 transfer case fluid. X
Inspect and replace PCV valve if neces-
sary. 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
have any doubt about your ability to perform a service
job, take your vehicle to a competent mechanic.
• 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.
Heavy Duty Use Of The Vehicle
Change Engine Oil at 4,000 miles (6,500 km) 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.
444 SERVICING AND MAINTENANCE
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ENGINE COMPARTMENT
3.6L Engine
1 — Remote Jump Start Positive Terminal6 — Air Cleaner Filter
2 — Power Distribution Center (Fuses) 7 — Washer Fluid Reservoir
3 — Engine Oil Dipstick 8 — Engine Oil Filter Access
4 — Engine Oil Fill 9 — Engine Coolant Reservoir
5 — Brake Fluid Reservoir 10 — Remote Jump Start Negative Terminal
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SERVICING AND MAINTENANCE 445
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5.7L Engine
1 — Remote Jump Start Positive Terminal6 — Air Cleaner Filter
2 — Power Distribution Center (Fuses) 7 — Washer Fluid Reservoir
3 — Engine Oil Dipstick 8 — Coolant Pressure Cap (Radiator)
4 — Engine Oil Fill 9 — Engine Coolant Reservoir
5 — Brake Fluid Reservoir 10 — Remote Jump Start Negative Terminal
446 SERVICING AND MAINTENANCE