Page 416 of 520

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” (MIL). 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 authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions tests
can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
”gASCAP” message will display in the odometer or a
“Check Gascap” message will display in the Electronic
Vehicle Information Center (EVIC) (if equipped). If this
occurs, tighten the fuel filler cap properly and press the
414 MAINTAINING YOUR VEHICLE
Page 417 of 520

Trip Odometer button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the MIL.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing. Normally, the OBD II system will be ready. The OBD II
system may
notbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.
2. If you crank or start the engine, you will have to start this test over.
3. As soon as you cycle the ignition switch to the ON position, you will see the MIL symbol come on as part
of a normal bulb check.
7
MAINTAINING YOUR VEHICLE 415
Page 472 of 520

6,000 Miles (10,000 km) or
6 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
12,000 Miles (20,000 km) or 12 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If you are using your vehicle in dusty or off-road conditions, inspect the engine air
cleaner filter, and replace if necessary.
❏ Inspect the brake linings, and replace if necessary.
❏ Inspect the CV joints. Perform the first inspection at 12,000 miles (20 000 km) or 12
months.
❏ Inspect the exhaust system. Perform the first inspection at 12,000 miles (20 000 km)
or 12 months.
❏ Inspect the manual transmission fluid (if equipped), add as necessary.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all
parts for damage, wear, improper looseness or end play; replace if necessary.
❏ Replace the air conditioning filter.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
470 MAINTENANCE SCHEDULES
Page 473 of 520

18,000 Miles (30,000 km) or
18 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the rear axle fluid.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
24,000 Miles (40,000 km) or 24 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If you are using your vehicle in dusty or off-road conditions, inspect the engine air
cleaner filter, and replace if necessary.
❏ Inspect the brake linings, and replace if necessary.
❏ Inspect the CV joints.
❏ Inspect the exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all
parts for damage, wear, improper looseness or end play; replace if necessary.
❏ Change the manual transmission fluid (if equipped) if using your vehicle for any of
the following: Most of your driving is at sustained high speeds during hot weather,
above 90°F (32°C), driving in dusty conditions, or stop and go driving.
❏ Replace the air conditioning filter.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
8
MAINTENANCE SCHEDULES 471
Page 474 of 520

30,000 Miles (50,000 km) or
30 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Adjust parking brake on vehicles
equipped with four-wheel disc
brakes.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
36,000 Miles (60,000 km) or 36 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If you are using your vehicle in dusty or off-road conditions, inspect the engine air
cleaner filter, and replace if necessary.
❏ Replace the air conditioning filter.
❏ Inspect the brake linings, and replace if necessary.
❏ Inspect the CV joints.
❏ Inspect the exhaust system.
❏ Inspect the rear axle fluid.
❏ Inspect the manual transmission fluid (if equipped), add as necessary.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all
parts for damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
472 MAINTENANCE SCHEDULES
Page 475 of 520
42,000 Miles (70,000 km) or
42 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
8
MAINTENANCE SCHEDULES 473
Page 476 of 520

48,000 Miles (80,000 km) or 48 Months Maintenance Service Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If you are using your vehicle in dusty or off-road conditions, inspect the engine air cleaner filter, and replace if necessary.
❏ Inspect the brake linings, and replace if necessary.
❏ Inspect the CV joints.
❏ Inspect the exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for damage, wear, improper looseness
or end play; replace if necessary.
❏ Change the rear axle fluid if using your vehicle for any of the following: police, taxi, fleet, or frequent trailer towing.
❏ Change the manual transmission fluid (if equipped) if using your vehicle for any of the following: Most of your driving is at
sustained high speeds during hot weather, above 90°F (32°C), driving in dusty conditions, or stop and go driving.
❏ Replace the air conditioning filter.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
474 MAINTENANCE SCHEDULES
Page 477 of 520

54,000 Miles (90,000 km) or
54 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the rear axle fluid.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
60,000 Miles (100,000 km) or 60 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Replace the air conditioning filter.
❏ Inspect the brake linings, and replace if necessary.
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the manual transmission fluid (if equipped), add as necessary.
❏ Inspect the CV joints.
❏ Inspect the exhaust system.
❏ Change the automatic transmission fluid and filter if using your vehicle for any of
the following: police, taxi, fleet, or frequent trailer towing.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all
parts for damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
8
MAINTENANCE SCHEDULES 475