Inside Rearview Mirror with Automatic Day-Night and OnStar® Switch Operation

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The inside rearview mirror with automatic day-night and OnStar® features has 4 switches that perform the following functions:

The ON/OFF switch is used to enable/disable the automatic day-night feature of the inside rearview mirror. To enable the automatic day-night feature, turn the ignition ON and depress the ON/OFF switch. A green indicator will illuminate on the inside rearview mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature depress the ON/OFF switch.
The 3 switches on the right side of the mirror are for OnStar® operation. For more detailed information, refer to the vehicles owners manual.