OnStar Services

See also:

Flash-to-Pass
Use your high-beam headlamps to signal to a driver in front that you want to pass. It works even if the headlamps are in the automatic position. To use it, pull the turn signal lever toward you, th ...

Compass Messages
CAL This message is displayed when the compass needs to be calibrated. See Compass. Three dashes will be displayed if the compass needs service. See your dealer for service. ...

Rear Vision Camera (RVC)
The rear vision camera displays a view of the area behind the vehicle on either the navigation screen or the inside rearview mirror when the vehicle is shifted into R (Reverse). Once shifted ...