See also:

Shoulder Belt Height Adjuster (Sedan and Wagon)
The vehicle has a shoulder belt height adjuster for the driver and right front passenger seating positions. Adjust the guide so the shoulder portion of the belt is on the shoulder and not f ...

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 v ...

Manual Operation
(Fan Control): Press these buttons on the rear seat audio control panel to increase or decrease the airflow. Pressing the fan up button when the system is off will turn the system on. The air del ...