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:

    Removal and Installation of the Sealant Canister
    To remove the sealant canister: 1. Unlock the air only hose (F) from the tire sealant canister (B) by pulling up on the lever. 2. Pull the air only hose (F) from the tire sealant canister (B). ...

    High Intensity Discharge (HID) Lighting
    WARNING The low beam high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your d ...

    Checking Engine Oil
    It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. S ...