Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
The Body Control Module (BCM) monitors the signal circuit from the Curb View Enable switch. The Curb View Enable switch is an integrated part of the S26 Hazard Warning Switch. When the Curb View Enable switch is pressed once, the BCM sends a request to the Radio via serial data to display the surround vision application.