OnStar

See also:

Cleaning Exterior Lamps/ Lenses and Emblems
Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean exterior lamps and lenses. Follow instructions under "Washing the Vehicle" later in this section. ...

Extending Engine Run Time
To extend the engine run time by 10 minutes, repeat Steps 1 and 2 while the engine is still running. The engine run time can only be extended if it is the first remote start since the vehicle ...

Anti-theft Alarm System Message
SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart so you may want to take the vehicle to your dealer ...