Page 272 of 363

6-15 When to Change Engine Oil
(GM Oil Life System
)
Your vehicle has a computer that lets you know when to
change your engine oil. This is based on engine
revolutions, and engine temperature and not on mileage.
10,000 miles (16 000 km) since your last oil and filter
change. Under severe conditions, the system may come
on before 3,000 miles (5 000 km). Never drive your
vehicle more than 10,000 miles (16 000 km) or
12 months (whichever occurs first) without an
oil change.
The system won't detect dust in the oil. So, if you
drive in a dusty area, be sure to change your oil and
filter every 3,000 miles (5 000 km) or sooner.
Remember to reset the CHANGE OIL light whenever
the oil is changed. For the Oil Life System to work
properly, you must reset the system each time the oil
is changed.How to Reset the CHANGE OIL Light
After changing the engine oil, the system must be reset.
To reset the CHANGE OIL light after an oil change do
the following:
1. With the ignition key turned to ON, but the engine
off, fully push and release the accelerator pedal
slowly three times within five seconds.
2. If the CHANGE OIL light flashes, the system
is resetting.
3. Turn the key to OFF after the light has finished
flashing, then start the vehicle.
If the CHANGE OIL light comes back on, the engine oil
life system did not reset. Repeat the procedure.
Page 276 of 363

6-19
Passenger Compartment Air Filter
The passenger compartment air filter is located
underneath the hood just below the windshield wiper
arm on the passenger's side of the vehicle (underneath
the air inlet grille).
The filter traps most of the pollen from air entering the
module. Like your engine's air cleaner/filter, it may
need to be changed periodically. For information on how
often to change the passenger compartment air filter, see
ªMaintenance Scheduleº in the Index.
To change the passenger compartment air filter, use the
following steps:
1. Turn off the ignition when the windshield wipers are
in the up position.
2. Raise the hood.
3. Disconnect the windshield washer pump hose from
the fender rail and air inlet grille.
4. Peel back the hood weatherstrip from the passenger's
side of the vehicle halfway to the center of the
engine compartment.5. Remove the air inlet grille retainers.
6. Remove the air inlet grille.
7. Remove the air deflector grille in the compartment.
8. Remove the old passenger compartment air filter.
9. Then reverse the steps to install the new air filter.
For the type of air filter to use, see ªNormal
Maintenance Replacement Partsº in the Index.
Page 319 of 363

6-62
Fuse Description
IGN 0:
CLUSTER
PCM, & BCMInstrument Panel Cluster,
Powertrain Control Module,
Body Control
NOT USED Not Used
LOW BLOWER HVAC Control Assembly,
Blower Motor
HVAC Air Temperature Valve Motor,
HVAC Control Assembly,
Solenoid Box, Compass Mirror
CRUISE Cruise Control Module
NOT USED Not Used
NOT USED Not Used
NOT USED Not Used
BTSI Automatic Transaxle Shift Lock
Control System
NOT USED Not Used
NOT USED Not Used
NOT USED Not Used
TURN
SIGNALS,
CORN LPSTurn Signals, Cornering LampsFuse Description
AIR BAG Air Bag System
CLUSTER Instrument Panel Cluster
NOT USED Not Used
PCM, BCM,
U/H RELAYPowertrain Control Module, Body
Control Module, Underhood
Ignition/Relay
RADIO, HVAC,
RFA CLUSTER,
DATA LINKRadio, HVAC Control Assembly,
Instrument Panel Cluster, Remote
Keyless Entry Module, Data Link
Connector, Bose Amplifier
BCM Body Control Module
CIGAR LTR,
AUX POWERAuxiliary Power, Cigarette
Lighter, Power Drop
INADV
POWER BUSVanity Mirrors, Instrument Panel
Courtesy Lamps, Instrument
Panel Compartment Lamps,
Trunk Courtesy Lamp, Header
Courtesy and Reading Lamps, I/S
Lighted Rearview Mirror
NOT USED Not Used
HIGH BLOWER High Blower Relay
HAZARD Hazard Switch
Page 323 of 363
6-66
Mini Relays Description
9 Cooling Fans
10 Cooling Fans
11 Crank
12 Cooling Fans
13 Ignition Main
14 Blank
Micro Relays Description
15 Air Conditioning Compressor
16 Horn
17 Fog Lamps
18 Blank
19 Fuel Pump
Mini Fuses Description
20 Blank
21 Generator
22 Powertrain Control Module
23 Air Conditioning Compressor
24 Blank
25 Fuel Injectors, Electronic Ignition
26 Transmission Solenoid
27 HornMini Fuses Description
28 Fuel Injector, Electronic Ignition
29 Oxygen Sensor
30 PCM Devices/Engine
Emissions Sensors
31 Fog Lamps
32 Headlamp (Passenger's Side)
33 Trunk Release
34 Parking Lamp
35 Fuel Pump
36 Headlamp (Driver's Side)
37 ABS
38 Spare
39 Spare
40 Spare
41 Spare
42 Spare
43 Spare
Diodes Description
Air Conditioning
Compressor Diode
44 Fuse Puller
Page 343 of 363

7-18
Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to OFF in each shift lever position.
The key should turn to OFF only when the shift lever
is in PARK (P).
The key should come out only in OFF.
Parking Brake and Automatic Transaxle PARK (P)
Mechanism Check
CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake's holding ability: With
the engine running and transaxle in NEUTRAL (N),
slowly remove foot pressure from the regular brake
pedal. Do this until the vehicle is held by the parking
brake only.
To check the PARK (P) mechanism's holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.