See also:

Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving. Only set it when the vehicle is in P (Park). Press the vehicle information button until PRESS TO CHANGE COMPASS ZONE displays. 2. Fi ...

Lockout Protection
If the key is in the ignition and the power door lock switch is used to lock the doors, all doors will lock and then the driver door will unlock. It is always recommended that the ignition key i ...

OnStar®
For vehicles with an active OnStar subscription, OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling servi ...