See also:

StabiliTrak® System
The vehicle has a vehicle stability enhancement system called StabiliTrak. It is an advanced computer controlled system that assists with directional control of the vehicle in difficult driving co ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...

Making a Call
To make a call: 1. Press 5 once or twice (depending on the radio). 2. Enter the phone number. 3. Select Call to start dialing the number. ...