See also:

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. ...

Rear Window Wiper/Washer
The rear wiper control is located on the turn and lane-change lever. To turn the rear wiper on, slide the lever to a wiper position. (Off): Turns the wiper off. (Rear Wiper Delay): Turns on the ...

Security Light
The security light should come on briefly as the engine is started. If the system is working normally, the indicator light turns off. If it does not come on, have the vehicle serviced by y ...