See also:

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). ...

Front Seats
The vehicle's front seats have adjustable head restraints in the outboard seating positions. WARNING! With head restraints that are not installed and adjusted properly, there is a greater ...

Store a Name Tag for Speed Dialing
1. Push . System responds: “OnStar ready.”. 2. Say “Store.” System responds: “Please say the number you would like to store.”. 3. Say the entire number without pausing. System responds: “Plea ...