GM Service Manual Online
For 1990-2009 cars only

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 gauge, a fuel gauge, 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 in some countries). It consists of an instrument cluster gauge connected to the vehicle speed sensor (VSS) on the transaxle output shaft.

The odometer measures in kilometers (miles in some countries) the total distance the vehicle has traveled since it was manufactured. It consists of an instrument cluster gauge 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 gauge 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 Gauge

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

The fuel gauge 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 Gauge

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

The temperature gauge 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 gauge. The engine is overheating if the pointer moves into the red zone at the upper limit of the gauge.

Instrument Cluster Indicator Lamps

The instrument cluster contains indicator lamps that indicate the functioning 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.