OnStar Services

See also:

StabiliTrak® System
The StabiliTrak system assists with directional control of the vehicle in difficult driving conditions. The system is on when the vehicle is started. - To turn off both Traction Control and Sta ...

Parade Dimming
This feature does not let the instrument panel display screens dim during daylight hours while the ignition is in the ACC/ACCESSORY or ON/RUN position and the parking lamps or headlamps are ...

Manual Operation of Power Liftgate
To change the liftgate to manual operation, press OFF on the liftgate switch. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. To ope ...