Instrument Cluster

The instrument cluster is centered above the steering column in the instrument panel. The instrument cluster is removable from the rear of the panel (toward the steering wheel). The cluster contains instruments that provide the driver with information on vehicle performance.

The instrument cluster includes the following components:
- A speedometer (with integral odometer and trip odometer)
- A tachometer (optional)
- A boost gauge (Pontiac with U2F)
- A fuel gauge
- A volt gauge (Pontiac without U2F and Buick with UB3)
- A coolant temperature gauge
- An array of indicator lamps

The vehicle speed reading on the speedometer is shown in both English (mph) and metric (km/h). The coolant temperature gauge omits any numerical readout markings and only contains a range of hash marks between C and H. The instrument cluster also contains numerous indicator lamps.

The instrument cluster assembly contains the cluster lens, and the speedometer/tachometer gauge module. The electric power is directed to each gauge through flexible printed circuits to each gauge module. The instrument cluster is serviceable as both a unit and as individual components (each gauge module may be removed from the cluster). The individual gauge modules are not to be disassembled. When an instrument cluster is replaced, the law requires either the odometer reading of the replacement unit be set to register the original mileage or that a label be installed on the driver's door frame to show the previous odometer reading and the date of replacement. Since the mileage can NOT be set on the odometer in this vehicle, an odometer label must be used.