StabiliTrak® System
The vehicle has a traction control system that limits wheel spin, and the StabiliTrak system that assists with directional control of the vehicle in difficult driving conditions. Both systems turn on automatically every time the vehicle is started.
• To turn off traction control, press and release 
located on the instrument panel, and the appropriate DIC message displays. See Ride Control System Messages on page 5‑42.
• Press and release again to turn on the traction control system. The StabiliTrak system remains on.
For more information, see StabiliTrak® System on page 9‑30.
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 changed,
...
Three-Way Calling
Three-way calling must be supported on the cell phone and enabled by the wireless
service carrier.
1. While on a call, press .
2. Say “Three&-way call.”
3. Use the dial or call command to ...
Park Brake and P (Park) Mechanism Check
WARNING
When you are doing this check, the vehicle could begin to move. You or others
could be injured and property could be damaged. Make sure there is room in front
of the vehicle in case it be ...