Page 411 of 504

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
•Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is loose, improperly
installed, or damaged. A loose fuel filler cap message will
be displayed in the instrument cluster. Tighten the gas
MAINTAINING YOUR VEHICLE 411
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Page 416 of 504

Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
•Day or night temperatures are below 32°F (0°C).
•Stop and Go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, Police or delivery service (commercial service).
•Off-Road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
IfANYof these apply to you, then change your engine oil
every 3,000 miles (4 800 km) or 3 months, whichever
comes first.
If none of these apply to you, then change your engine oil
every 6,000 miles (10 000 km) or 6 months whichever
comes first and follow schedule “B” of theMaintenance
Schedulessection of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on scheduleAof theMainte-
nance Schedulessection of this manual.
NOTE:Under no circumstances should oil change in-
tervals exceed 6,000 miles (10 000 km) or 6 months
whichever comes first.
416 MAINTAINING YOUR VEHICLE
Page 421 of 504
vehicle allowed to cool. Thereafter, service, including a
tune-up to manufacturer’s specifications, should be ob-
tained immediately.
To minimize the possibility of catalyst damage:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idling or malfunctioning operating conditions.
Maintenance-Free Battery
The top of the MAINTENANCE-FREE battery is perma-
nently sealed. You will never have to add water, nor is
periodic maintenance required.
MAINTAINING YOUR VEHICLE 421
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Page 441 of 504

•Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is driven regularly for
more than 45 minutes of continuous operation.
NOTE:Refer to Section 8 of this manual for Mainte-
nance Schedules.
If the transmission is disassembled for any reason, the
fluid and filter should be changed.
Special Additives
Do not add any fluid additives to the transmission. The
only exception to this policy is the use of special dyes to
aid in detecting fluid leaks. The use of transmission
sealers should be avoided as they may adversely affect
seals.
Front And Rear Wheel Bearings
Front and rear wheel bearings are permanently sealed.
No regular maintenance is required for these compo-
nents.
Appearance Care and Protection from Corrosion
Protection of Body and Paint from Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
trees and road surfaces during other seasons, are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
hot or cold weather and other extreme conditions will
have an adverse effect on paint, metal trim, and under-
body protection.
MAINTAINING YOUR VEHICLE 441
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Page 460 of 504

EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
typemust be done at the times or mileages specified to
assure the continued proper functioning of the emission
control system. These, and all other maintenance services
included in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE:Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part, which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is Schedule“B”. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Day or night temperatures are below 0° C (32° F).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 16 km (10 miles).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 32° C (90° F).
•Trailer towing.
460 MAINTENANCE SCHEDULES
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SCHEDULE “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions. Change
the automatic transmission fluid and filter every 96 000
km (60,000 miles) if the vehicle is usually operated under
one or more of the conditions marked with an.
•Day or night temperatures are below 0° C (32° F).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 16 km (10 miles).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 32° C (90° F).
•Trailer towing.
•Taxi, police, or delivery service (commercial ser-
vice).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
SCHEDULE “B” 463
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Page 471 of 504
‡ This maintenance is not required if previously replaced.
This maintenance is required only for police, taxi,
limousine type operation, or trailer towing.Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
SCHEDULE “B” 471
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Page 489 of 504

Compass Variance....................... 168
Computer, Trip/Travel.................... 170
Console, Overhead....................... 166
Console, Removable...................191,193
Contract, Service........................ 480
Coolant Pressure Cap (Radiator Cap).......... 432
Cooling System......................... 429
Adding Coolant (Antifreeze).............. 431
Coolant Capacity...................... 457
Coolant Level......................430,433
Disposal of Used Coolant................ 432
Drain, Flush, and Refill.................. 430
Inspection........................... 433
Points to Remember.................... 433
Pressure Cap......................... 432
Radiator Cap......................... 432
Selection of Coolant (Antifreeze)......430,457,458
Cruise Control (Speed Control).............. 163
CruiseLight ........................... 218CupHolder .........................185,446
Customer Assistance..................... 478
Data Recorder, Event...................... 71
Daytime Running Lights................... 153
Dealer Service.......................... 414
Defroster, Rear Window................... 301
Defroster, Windshield................ 88,281,292
Diagnostic System, Onboard................ 411
Digital Video Disc (DVD) Player............. 257
Dimmer Control........................ 151
Dipsticks
Automatic Transmission................. 439
Oil (Engine).......................... 414
Disabled Vehicle Towing................... 404
Disposal
Antifreeze (Engine Coolant)............... 432
Engine Oil........................... 418
Domelight............................. 151
INDEX 489
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