Air suspension

WARNING Ensure that the vehicle is clear of people and obstacles before lowering the suspension. The difference between Off-road height and Access height is 4.1 in. (105 mm). The air suspen ...

Extended off-road height

If grounded in severe off-road conditions, the system may automatically enter Extended mode. The off-road height indicator flashes and a message will be displayed in the message center. In extende ...

See also:

Power Seat Adjustment
WARNING You can lose control of the vehicle if you try to adjust a driver seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you ...

Seat belt pre-tensioners
The seat belt pre-tensioners activate in conjunction with the Supplementary Restraint System (SRS) to provide additional protection in the event of a severe frontal impact. They automatically redu ...

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 veh ...