PRNDL Display
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.
The IPC displays the selected gear position as determined by the ECM. The IPC receives a serial data message from the ECM indicating the gear position. The PRNDL display blanks if:
- The ECM detects a malfunction in the transmission range switch circuit.
- The IPC detects a loss of serial data communications with the BCM.
- The BCM detects a loss of serial data communications with the ECM.