GM Service Manual Online
For 1990-2009 cars only

Cigar Lighter

The cigar lighter is located in the front portion of the floor console. To use the lighter, push it in completely. When the lighter is hot, it will release itself from contact with the heating element. The lighter and the heating element can be damaged if the lighter is not allowed to release itself fully from the heating element.

Ashtray

The ashtray is located below the audio system. To access the ashtray, pull it out from the center console. The ashtray lamp will go ON when the parking lamps or the headlamps are turned ON.

Instrument Panel Vents

The center and the side vents in the instrument panel can be adjusted up and down and from side to side. The side vents can also be aimed toward the side windows in order to defog them.

Glove Box

The glove box can be opened by pulling up on the latch handle. The glove box must be removed in order to gain access to the passenger's side air bag module.

Digital Clock

The digital clock is located in the instrument panel, above the audio system. The clock is capable of a 12-hour or a 24-hour display.

Instrument Cluster

The instrument cluster is located above the steering column and in the instrument cluster trim panel. The instrument cluster contains the instruments that provide the driver with vehicle performance information. The instrument cluster contains a speedometer, an odometer, a trip odometer, a temperature gage, a fuel gage, and several indicator lamps. For replacement of the indicator lamp bulbs contained in the instrument cluster, refer to Instrument Cluster Bulb Replacement.

Speedometer/Odometer/Trip Odometer

The speedometer measures the speed of the vehicle in km/h (mph). It consists of an instrument cluster gage connected to the vehicle speed sensor (VSS) on the transaxle output shaft.

The odometer measures in kilometers (miles) the total distance the vehicle has traveled since it was manufactured. It consists of an instrument cluster gage connected to the VSS on the transaxle output shaft.

The trip odometer measures the distance the vehicle has traveled since the odometer was last reset. It consists of an instrument cluster gage connected to the VSS on the transaxle output shaft. The trip odometer can be reset to zero at any time so that the driver can record the distance traveled from any starting point.

Fuel Gage

The fuel gage consists of an instrument cluster gage connected to a sending unit in the fuel tank.

The fuel gage indicates the quantity of fuel in the tank only when the ignition switch is turned to ON or ACC. When the ignition is turned to LOCK or START, the pointer may come to rest at any position.

Temperature Gage

The temperature gage consists of an instrument cluster gage connected to a temperature sensor that is in contact with the circulating engine coolant.

The temperature gage indicates the temperature of the coolant. Prolonged driving or idling in very hot weather may cause the pointer to move beyond the center of the gage. The engine is overheating if the pointer moves into the red zone at the upper limit of the gage.

Low Oil Pressure Indicator

The engine oil pressure switch is a normally closed switch that opens with the proper oil pressure. With the ignition switch turned ON and the engine not running, ignition voltage is supplied to the oil pressure indicator, the oil pressure switch will be closed and the indicator will be grounded. With the engine running, the pressure switch opens and the indicator will turn off.

Instrument Cluster Indicator Lamps

The instrument cluster contains indicator lamps that indicate the function of certain systems or the existence of potential problems with the operation of the vehicle. The indicator lamps are replaceable. For replacement of the indicator lamps contained in the instrument cluster, refer to Instrument Cluster Bulb Replacement.

Smart Junction Box

Because the conventional electric systems, in which simple timers, relays and individual control units are used, have separate circuits for each system, they require a lot of components as well as complex wiring. The Smart Junction Box (SJB) integrates all these type of complex units.

Item

Function

Chime Bell

    • SEAT BELT WARNING
        The seat belt is unbuckled when the ignition switch is ON.
    • KEY REMINDER WARNING
        The driver door is OPEN when the key is in the ignition switch.
    • LAMP WARNING
        The light switch is ON when the key is in the ignition switch or ignition OFF and door OPEN.
    • OVER SPEED WARNING
        When exceeding the vehicle speed.
    • AIR BAG WARNING
        When receiving the air bag signal.

BATTERY SAVER

    • When the ignition key is removed, door open, tail switch on, the tail lamp will turn OFF (Battery Saver ON).
    • When the tail switch is turned ON, or the ignition key is turned ON in Battery Saver mode, the tail lamp auto control ON (Battery Saver OFF).

CENTRAL DOOR LOCK

    • RKE DOOR LOCK/UNLOCK
    • DOOR SWITCH LOCK/UNLOCK

REAR FOG RELAY CONTROL

    • When the headlamp or front fog lamp is ON.
    • When the rear fog lamp switch is ON or OFF.

KEY ILLUMINATION

    • ON when the driver door is OPEN and the ignition is OFF.
    • OFF when the driver door is CLOSED and the ignition is OFF.

INT WIPER

    • Wiper LOW control when intermittent switch is ON and the ignition is ON.
    • Washer with wiper control.

BTSI and KEY INTER LOCK

The BTSI and key interlock solenoid control according to the brake application and if the transmission is in the P (park) position.

DAYTIME RUNNING LIGHT

    • The headlamps ON LOW and tail lamps ON when you start the engine.
    • When the tail lamps are ON the DRL is OFF.

POWER WINDOW CONTROL

The power window relay time control when the ignition ACC mode is OFF.

REAR DEFOG CONTROL

The rear defog relay utilizes time control when the ignition is ON.

Sleep Mode

Change the vehicle smart junction box to low-electricity mode.