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 access to all of the OnStar services, except Virtual Advisor and OnStar Turn–by–Turn Navigation.

    See also:

    Power Seat Adjustment
    To adjust a power seat, if equipped: - Move the seat forward or rearward by sliding the horizontal control forward or rearward. - Raise or lower the front or rear part of the seat cushion ...

    If Steam Is Coming from the Engine Compartment
    WARNING Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Turn it off and get everyone aw ...

    Remote Keyless Entry (RKE) System
    On some models, the RKE transmitter is used to lock and unlock the doors from up to 20m (65 ft) away from the vehicle. On other models, it can be used up to 60m (195 ft) away. Key Access ...