See also:

Rear Compartment Fuse Block (CTS Coupe and Sedan)
The rear compartment fuse block is located on top of the battery, on the right side of the trunk. The battery access door must be removed to access the fuse block. The vehicle may not be equi ...

How the System Works
When the vehicle is started, both outside mirror displays will briefly come on to indicate that the system is operating. While driving forward, the left or right side mirror SBZA display w ...

Battery Power Protection
This feature helps to prevent battery drain if accessory lamps are left on. If accessory lamps such as the vanity mirror, cargo, reading, console, or glove box are left on, they automaticall ...