See also:

Traction Control System (TCS)/StabiliTrak® Light
The Traction Control System (TCS)/ StabiliTrak Light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by the dealer. If the system is working n ...

Flash-to-Pass
To flash the high beams, pull the turn signal/lane change lever all the way toward you. Then release it. ...

Using Voice Commands During a Planned Route
Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?”. 2. Sa ...