See also:

Lumbar Adjustment
Power Lumbar If available, press and hold the front or rear of the control to increase or decrease lumbar support. Release the control when the seatback reaches the desired level of lumbar su ...

TTY Users
OnStar has the ability to communicate to the deaf, hard–of–hearing, or speech–impaired customers while in the vehicle. The available dealer–installed TTY system can provide in-vehicle acces ...

Before Driving
The RSE is designed for rear seat passengers only. The driver cannot safely view the video screen while driving and should not try to do so. In severe or extreme weather conditions, the RSE system ...