GMC Terrain: Onstar.com - Services for People with Disabilities - OnStar Additional Information - OnStar - GMC Terrain Owner's ManualGMC Terrain: Onstar.com

The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service. Get subscription plan pricing and sign up for OnStar Vehicle Diagnostics. Click on the “My Account” tab on the home page.

    TTY Users
    OnStar has the ability to communicate to the deaf, hard&-ofhearing, or speech&-impaired customers while in the vehicle. The available dealer&-installed TTY system can provide in-vehicl ...

    OnStar Personal Identification Number (PIN)
    A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. T ...

    See also:

    Electronic Speed Control — If Equipped
    When engaged, the Electronic Speed Control takes over accelerator operations at speeds greater than 25 mph (40 km/h). The Electronic Speed Control buttons are located on the right side of the s ...

    Gauges
    Speedometer The speedometer indicates the forward speed of the vehicle. Tachometer The tachometer indicates the approximate number of engine revolutions per minute (rpm). Use the tachometer to sel ...

    Hdc operation
    With HDC engaged, standard descent speed will not exceed 20km/h (12.4mph). While the green warning lamp is continuously illuminated, HDC target speed can be modified using the cruise control steer ...