See also:

Testing the Alarm
To test the alarm: 1. From inside the vehicle, lower the driver window and open the driver door. 2. Activate the system by locking the doors with the power door lock switch while the door is open, ...

Hitch Cover (without Dual Exhaust)
The vehicle may have a hitch cover. To remove the hitch cover: 1. Turn the fasteners on the lower tabs 90 degrees counterclockwise. 2. Lift the lower edge of the cover about 45 degrees. 3. Pull t ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system ...