OnStar

See also:

Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Replace the tire if: The indicators at three or mo ...

Lateral Acceleration (CTS-V Only)
Lateral Acceleration measures the force of a turn or corner. For example, when turning right, it forces to the left. This gauge displays the “g” force from 0.0 g to 2.0 g. ...

Anti-theft Alarm System
This vehicle may have an anti-theft alarm system. The security light, located in the instrument panel cluster, comes on when the system is arming. ...