Potential Issues

Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.

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    Reclining Seatbacks
    Manual Reclining Seatbacks To recline a manual seatback: 1. Lift the lever. 2. Move the seatback to the desired position, and then release the lever to lock the seatback in place. 3. Push and ...

    Bold styling
    GMC Terrain has a balanced, athletic stance and offers a commanding view of the road. Its design is characterized by bold, muscular fender flares, representing GMC's aesthetic. Surfacing is angula ...

    Park Brake and P (Park) Mechanism Check
    WARNING When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begi ...