See also:

Filling the Tank
If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. WARNING Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you ...

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, ...

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 ...