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:

    Lockout Protection
    This feature stops the power door locks from locking when the key is in the ignition and a door is open to protect you from locking your key in the vehicle. If the power lock switch is pressed w ...

    Recording from MP3/WMA Discs or USB Storage Devices
    USB Host Support The USB connector uses the USB standards, 1.1 and 2.0. USB Supported Devices • USB Flash Drives • Portable USB Hard Drives Recording to MEM Press REC , then select Record ...

    Automatic EPB Release
    The EPB will automatically release if the vehicle is running, placed into gear, and an attempt is made to drive away. Avoid rapid acceleration when the EPB is applied, to preserve parking br ...