Page 320 of 370

If an examination of your engine compartment shows
no evidence of radiator or hose leaks, the vehicle may
be safely driven. The vapor will soon dissipate.
•Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and in
the coolant expansion bottle. If engine coolant (anti-
freeze) needs to be added, the contents of the coolant
expansion bottle must also be protected against freez-
ing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure
tested for leaks.
• Maintain engine coolant (antifreeze) concentration at
a minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion
protection of your engine which contains aluminum
components.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may result in unsatisfactory engine coolant (anti-
freeze) performance, poor gas mileage, and increased
emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in abnor-
mally high brake temperatures, excessive lining
wear, and possible brake damage. Riding the
brakes may also reduce braking capacity in an
emergency.
Brake Master Cylinder
The fluid level in the master cylinder should be checked
when performing under hood services, or immediately
if the “Brake Warning Light” is on.
318 MAINTAINING YOUR VEHICLE
Page 346 of 370

MAINTENANCE SCHEDULE
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 in the instrument
cluster. This means that service is required for your
vehicle. Operating conditions such as frequent short-
trips, trailer tow and extremely hot or cold ambient
temperatures 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 (805 km).
Your authorized dealer will reset the oil change indica-
tor 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 “Instru-
ment Cluster Display” in “Understanding Your Instru-
ment Panel” for further information.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.
Severe Duty All Models
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.
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 un-
usual wear or damage.
• Check the fluid levels of the coolant reservoir, and
brake master cylinder reservoir, and fill as needed.
• Check function of all interior and exterior lights.
344 MAINTENANCE SCHEDULES
Page 358 of 370

Adding Engine Coolant (Antifreeze)...........315
Adding Fuel ............................269
Adding Washer Fluid .....................312
Additives, Fuel ..........................268
Air Bag Air Bag Operation ......................39
Driver Knee Air Bag .....................40
Enhanced Accident Response ..............294
Event Data Recorder (EDR) ...............295
If A Deployment Occurs ..................45
Knee Impact Bolsters ....................40
Maintaining Your Air Bag System ...........48
Redundant Air Bag Warning Light ...........37
Side Air Bags ..........................40
Air Bag Light ........................68, 140
Air Bag Maintenance ......................48
Air Cleaner, Engine (Engine Air Cleaner Filter) . . .304
Air Conditioner Maintenance ................306
Air Conditioning Filter .................205, 306
Air Conditioning, Operating Tips .............205
Air Conditioning Refrigerant ................306
Air Conditioning System ................204, 306
Air Pressure, Tires ........................250
Alarm (Security Alarm) .....................14
Alarm System (Security Alarm) ...............14Alterations/Modifications, Vehicle
..............7
Antifreeze (Engine Coolant) ..............315, 339
Capacities .......................... .339
Disposal ............................ .317
Anti-Lock Brake System (ABS) ...............232
Appearance Care ........................321
Arming System (Security Alarm) ..............14
Audio Systems (Radio) ....................192
Automatic Dimming Mirror ..................74
Automatic Temperature Control (ATC) .........204
Automatic Transmission ..........220, 221, 320, 321
Adding Fluid ..................... .320, 321
Autostick ............................226
Fluid And Filter Changes .................321
Fluid Change ........................ .321
Fluid Level
Check ..................... .320
Fluid Type .......................... .342
Gear Ranges ..........................222
Special Additives ..................... .320
Autostick ............................. .226
Auto Up Power Windows ...................23
Battery ............................... .305
Jump Starting ........................ .286
Belts, Seat ..............................67
356 INDEX