Circuit/System Description
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure applies to serial data gauges located in the instrument panel cluster (IPC) which includes the speedometer, tachometer, engine coolant temperature gauge, volt gauge and engine oil pressure gauge if equipped.