See also:

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has ch ...

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

Brake Assist (Except CTS-V)
This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydrauli ...