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:

    Defensive Driving
    Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear the safety belt. See Safety Belts. - Assume that other road users (pedestrians, bicycl ...

    Extending Engine Run Time
    To extend the engine run time by 10 minutes, repeat Steps 1 and 2 while the engine is still running. The engine run time can only be extended if it is the first remote start since the vehicle ...

    Time Shifting (Radio with CD/DVD and MEM)
    The radio with the MEM time shift feature can rewind 20 minutes of XM content. While listening to the radio, the content from the current channel is always being buffered. Press   to pause t ...