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:

    Leaving Your Vehicle With theEngine Running
    CAUTION: It can be dangerous to leave your vehicle with the engine running. Your vehicle could move suddenly if the shift lever is not fully in PARK (P) with the parking brake firmly set. And, ...

    Traction Control System (TCS)/StabiliTrak® Light
    The Traction Control System (TCS)/StabiliTrak light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by the dealer. If the system is workin ...

    Dome Lamp Override
    The dome override button is located below the exterior lamps knob. To turn the dome lamps off, press the button. The dome lamps will remain off when a door is open. This will override the ill ...