Page 329 of 496

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................329
▫ 6.2L Supercharged Engine .................329
ENGINE COMPARTMENT .................333
▫ 6.2L Supercharged Engine ................333
▫ Checking Oil Level .....................334
▫ Adding Washer Fluid ...................334
▫ Maintenance-Free Battery .................335
DEALER SERVICE ...................... .336
▫ Engine Oil .......................... .336
▫ Engine Oil Filter ...................... .338
▫ Engine Air Cleaner Filter .................338
▫ Air Conditioner Maintenance ..............339
▫ Accessory Drive Belt Inspection ............342
▫ Body Lubrication ..................... .343▫
Windshield Wiper Blades .................343
▫ Exhaust System ....................... .346
▫ Cooling System ....................... .348
▫ Brake System ........................ .352
▫ Automatic Transmission ..................354
▫ Rear Axle ........................... .355
RAISING THE VEHICLE ..................356
TIRES ............................... .356
▫ Tire Safety Information ..................356
▫ Tires — General Information ..............365
▫ Tire Types ........................... .371
▫ Spare Tires — If Equipped ................372
▫ Wheel
And Wheel Trim Care ..............375
▫ Tire Chains (Traction Devices) .............376
8
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▫Tire Rotation Recommendations .............376
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ..................377
▫ Treadwear ........................... .377
▫ Traction Grades ....................... .377
▫ Temperature Grades .....................378
VEHICLE STORAGE .....................378
▫ Battery Storage Mode ....................379
BODYWORK .......................... .379▫
Protection From Atmospheric Agents ........379
▫ Body And Underbody Maintenance ..........380
▫ Preserving The Bodywork .................380
INTERIORS ........................... .381
▫ Seats And Fabric Parts ...................381
▫ Plastic And Coated Parts ..................382
▫ Leather Parts ......................... .382
▫ Glass Surfaces ........................ .383
328 SERVICING AND MAINTENANCE
Page 331 of 496

SCHEDULED SERVICING
6.2L Supercharged 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
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” for
further information.
At Each Stop For Fuel
• Check the engine oil level. Refer to “Engine Compart-
ment” in this chapter for further information.
• Check the windshield washer solvent and add if re-
quired.
8
SERVICING AND MAINTENANCE 329
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Once A Month
•Check tire pressure and look for unusual wear or
damage.
• Inspect the battery, and clean and tighten the terminals
as required.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering (6.2L only), and add
as needed.
• Check all lights and other electrical items for correct
operation. At Each Oil Change
•
Change the engine oil filter.
• Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Maintenance Plan
Miles:6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000 114,000
120,000
126,000
132,000
138,000
144,000
150,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150
Or Kilometers:
10,000
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
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000
Change the engine oil and engine oil filter. X X XXXXXXXXXXXXXXXXXXXXXXX
Rotate the tires, rotate at the first sign of irregu-
lar wear, even if it occurs before scheduled
maintenance. XXXXXXXXXXXXXXXXXXXXXXXXX
If using your vehicle for any of the following:
dusty or off-road conditions. Inspect the engine
air cleaner filter; replace if necessary. XXXXXXXXXXXX
330 SERVICING AND MAINTENANCE
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Miles:6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000 114,000
120,000
126,000
132,000
138,000
144,000
150,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150
Or Kilometers:
10,000
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
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000
Inspect the brake linings; replace if necessary. X X X X X X X X X X X X
Inspect the CV joints. X X X X X X X X X X X X
Inspect the exhaust system. X X X X X X X X X X X X
Adjust the parking brake on vehicles equipped
with four wheel disc brakes. XXXXX
Change the rear axle fluid if using your vehicle
for any of the following: police, taxi, fleet or fre-
quent trailer towing. XX X
Inspect the rear axle fluid. XXXXXXXX
Inspect front suspension, tie rod ends, and boot
seals, for cracks or leaks and all parts for dam-
age, wear, improper looseness or end play; re-
place if necessary. XXXXXXXXXXXX
Replace the engine air cleaner filter. X X X X X
Replace the air conditioning filter. X X X X X X X X X X X X
Inspect and replace the PCV Valve if necessary X
Replace the spark plugs – 6.2L Supercharged
Engine ** XX
Flush and replace the engine coolant/intercooler
at 120 months if not done at 150,000 miles
(240,000 km). XX
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SERVICING AND MAINTENANCE 331
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** 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 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.
332 SERVICING AND MAINTENANCE
Page 335 of 496
ENGINE COMPARTMENT
6.2L Supercharged Engine
1 — Washer Fluid Reservoir7 — Brake Fluid Reservoir Access Cover
2 — Remote Jump Start (Positive Battery Post) 8 — Engine Coolant Reservoir
3 — Power Distribution Center (Fuses) 9 — Air Cleaner Filter
4 — Intercooler Fluid Reservoir 10 — Power Steering Reservoir
5 — Engine Oil Fill 11 — Engine Oil Dipstick
6 — Engine Coolant Pressure Cap 12 — Remote Jump Start (Negative Battery Post)
8
SERVICING AND MAINTENANCE 333
Page 336 of 496

Checking Oil Level
To assure proper engine lubrication, the engine oil must be
maintained at the correct level. Check the oil level at
regular intervals, such as once a month. The best time to
check the engine oil level is about five minutes after a fully
warmed engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain the
oil level in the “SAFE” range. Adding 1.0 quart (1 liter) of
oil when the reading is at the bottom of the “SAFE” range
will result in an oil level at the top of the “SAFE” range on
these engines.
CAUTION!
Overfilling or underfilling the crankcase will cause
aeration or loss of oil pressure. This could damage your
engine.
Adding Washer Fluid
The windshield washer fluid reservoir is located in the
front of the engine compartment. Be sure to check the fluid
level at regular intervals. Fill the reservoir with windshield
washer solvent (not radiator antifreeze) and operate the
system for a few seconds to flush out the residual water.
When refilling the washer fluid reservoir, apply some
washer fluid to a cloth or towel and wipe the wiper blades
clean. This will help blade performance.
To prevent freeze-up of your windshield washer system in
cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This rating
information can be found on most washer fluid containers.
The fluid reservoir will hold nearly 1 gallon (4 liters) of
washer fluid when the message “Low Washer Fluid”
appears in the instrument cluster.
WARNING!
Commercially available windshield washer solvents
are flammable. They could ignite and burn you. Care
must be exercised when filling or working around the
washer solution.
334 SERVICING AND MAINTENANCE