See also:

Power Lumbar
On vehicles equipped with either a two-way or four-way lumbar, the control is located on the outboard side of the seats. For a detailed operation description see Power Lumbar . ...

Tire Pressure Light
For vehicles with a tire pressure monitoring system, this light comes on briefly when the engine is started. It provides information about tire pressures and the Tire Pressure Monitoring Syste ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...