See also:

Compass
The vehicle may have a compass display in the Driver Information Center (DIC). See Compass for more information. ...

Anti-theft Alarm System
This vehicle has an anti-theft alarm system. ...

Accessories and Modifications
When you add non-GM accessories to your vehicle they can affect your vehicle’s performance and safety, including such things as, airbags, braking, stability, ride and handling, emissions systems, ...