Circuit/System Description
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. 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.