Rear Vision Camera System Operation

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Ignition voltage and ground are supplied to the Rearview Camera. When the transmission is placed into R, a signal is sent to the K74 Human Machine Interface Control Module indicating that camera operation is requested. The Rearview Camera sends video image to the K74 Human Machine Interface Control Module through a video signal + and a video signal - circuit. The K74 Human Machine Interface Control Module then sends the video signal via digital LVDS circuits (USB cable) to the P17 Info Display Module to be displayed.

The following conditions may cause a degraded rear vision camera image:

Ice, snow, or mud has built up on the rear vision camera
Dark conditions
Extreme light conditions, such as glare from the sun or the headlights of another vehicle
Damage to the rear of the vehicle
Extreme high temperatures or extreme temperature changes

If a malfunction is detected in the system, Service Rear Vision Camera may be displayed on the Info Display Module as an indicator to the customer that a problem exists that requires service.