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. ...

Parking Brake and Automatic Transmission P (Park) Mechanism Check
WARNING: When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it ...

Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will sound for several seconds to remind you buckle your safety belt. The driver safety belt light will also come on and stay on for several seconds ...