Page 393 of 572

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................393
▫ Maintenance Plan ..................... .395
ENGINE COMPARTMENT .................398
▫ 6.4L Engine ......................... .398
▫ Checking Oil Level .....................399
▫ Adding Washer Fluid ...................399
▫ Maintenance-Free Battery .................399
DEALER SERVICE ...................... .400
▫ Engine Oil .......................... .401
▫ Engine Oil Filter ...................... .403
▫ Engine Air Cleaner Filter .................403
▫ Air Conditioner Maintenance ..............403
▫ Accessory Drive Belt Inspection ............407
▫ Body Lubrication ..................... .408▫
Windshield Wiper Blades .................409
▫ Exhaust System ....................... .413
▫ Cooling System ....................... .415
▫ Brake System ........................ .420
▫ Automatic Transmission ..................421
▫ Front/Rear Axle Fluid ...................422
▫ Transfer Case ........................ .423
RAISING THE VEHICLE ..................423
TIRES ............................... .424
▫ Tire Safety Information ..................424
▫ Tires — General Information ..............433
▫ Tire Types ........................... .439
▫ Spar
e Tires — If Equipped ................440
▫ Wheel And Wheel Trim Care ..............443
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▫Tire Chains (Traction Devices) .............444
▫ Tire Rotation Recommendations ............444
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES ..........445
▫ Treadwear ........................... .445
▫ Traction Grades ....................... .445
▫ Temperature Grades .....................446
STORING THE VEHICLE ..................446
▫ Battery Storage Mode ....................447
BODYWORK .......................... .448
▫ Protection From Atmospheric Agents ........448
▫ Body And Underbody Maintenance ..........448
▫ Preserving The Bodywork .................448
INTERIORS ........................... .450
▫ Seats And Fabric Parts ...................450
▫ Plastic And Coated Parts ..................450
▫ Leather Parts ......................... .451
▫ Glass Surfaces ........................ .451
392 SERVICING AND MAINTENANCE
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SCHEDULED SERVICING
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.
The instrument cluster display will display an “Oil Change
Required” message 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 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.
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” for
further information.
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SERVICING AND MAINTENANCE 393
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At Each Stop For Fuel
•Check the engine oil level. Refer to “Engine Compart-
ment” in this section for further information.
• Check the windshield washer solvent and add if re-
quired.
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, engine oil,
brake master cylinder, 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.
• Rotate the tires. Rotate at the first sign of irregular
wear, even if it occurs before the oil indicator system
turns on.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
394 SERVICING AND MAINTENANCE
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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 en-
gine oil filter. XXXXXXXXXXXXXXXXXXXXXXXXX
Rotate the tires, rotate at the first
sign of irregular wear, even if it
occurs before scheduled mainte-
nance. XXXXXXXXXXXXXXXXXXXXXXXXX
If using your vehicle for any of
the following: dusty or off-road
conditions. Inspect the engine air
cleaner filter; replace if neces-
sary. XXXXXXXXXXXX
Inspect the brake linings; replace
if necessary. XXXXXXXXXXXX
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 ve-
hicles equipped with four wheel
disc brakes. XXXXX
Drain the transfer case and refill. X X X X X
Inspect the accessory drive belts
replace if necessary. XX
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SERVICING AND MAINTENANCE 395
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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 front and rear axle
fluid. Change if using your ve-
hicle for any of the following: po-
lice, taxi, fleet, sustained high
speed driving, off-road or fre-
quent trailer towing. XXXXXX
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; replace if necessary. XXXXXXXXXXXX
Replace the engine air cleaner
filter. XXXXX
Replace the air conditioning filter. XXX XX X
Inspect and replace the PCV
Valve if necessary X
Replace the spark plugs. ** X
Flush and replace the engine
coolant at 120 months if not
done at 150,000 miles
(240,000 km). XX
** The spark plug change interval is mileage based only,
monthly intervals do not apply.
396 SERVICING AND MAINTENANCE
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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.
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SERVICING AND MAINTENANCE 397
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ENGINE COMPARTMENT
6.4L Engine
1 — Remote Jump Start Positive Terminal6 — Washer Fluid Reservoir
2 — Power Distribution Center (Fuses) 7 — Engine Oil Dipstick
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Air Cleaner Filter 10 — Remote Jump Start Negative Terminal
398 SERVICING AND MAINTENANCE