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:

    Vehicle Symbol Chart
    Here are some additional symbols that may be found on the vehicle and what they mean. For more information on the symbol, refer to the Index. : Airbag Readiness Light : Air Conditioning ...

    Replacement Bulbs
    For replacement bulbs not listed here, contact your dealer/retailer. ...

    Exterior Lamps Off Reminder
    A warning chime sounds if the driver door is opened while the ignition is off and the exterior lamps are on. ...