See also:

Passenger Sensing System
Your vehicle has a passenger sensing system for the right front passenger’s position. A passenger airbag status indicator in the rearview mirror will be visible when you turn your ignition key to ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside rearview mirror with OnStar® and/or a compass display. Automatic dimming reduces the glare from the headlamps of the vehicle behind you. The dim ...