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:

    Entering the Personalization Menus
    1. Press CONFIG to access the Configuration Settings menu. 2. Turn the TUNE/MENU knob to highlight Vehicle Settings. Press the CONFIG button until Vehicle is highlighted on vehicles with a navigati ...

    CHANGE ENGINE OIL SOON
    This message displays when the engine oil needs to be changed. When you change the engine oil, be sure to reset the Oil Life System. See Engine Oil Life System and Driver Information Center (D ...

    Engine Identification
    The eighth character in the VIN is the engine code. This code identifies the vehicle’s engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Speci ...