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:

    Lumbar Adjustment
    If available, hold the control on the outboard side of the seat forward or rearward to increase or decrease the lumbar support on the driver or front passenger seat. A. Side Bolster Adjus ...

    Dolly Towing (Rear Wheels Off the Ground)
    Use the following procedure to dinghy tow a two-wheel-drive vehicle from the rear: 1. Attach the dolly to the tow vehicle following the dolly manufacturer's instructions. 2. Drive the rear w ...

    Airbag Readiness Light
    This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), passenger sensing system, the pretensioners, the airbag modules, the wiring ...