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:

    Back-Up Lamps
    To replace this bulb: 1. Open the liftgate. See Liftgate   for more information. 2. Remove the two screws from the taillamp assembly. 3. Pull the taillamp assembly rearward until the ...

    Transmission
    Driver Shift Control (DSC) Driver Shift Control (DSC) allows you to shift an automatic transmission similar to a manual transmission. To use the DSC feature: 1. Move the shift lever to the left ...

    Turn Signal Lamps
    To replace one of these bulbs: 1. Open the liftgate. See Liftgate . A. Push Pin B. Taillamp Cover 2. Pull on push pin (A) to release the taillamp cover (B). 3. Remove the taillamp cover ...