GMC Terrain: All-Wheel Drive - Drive Systems - Driving and Operating - GMC Terrain Owner's ManualGMC Terrain: All-Wheel Drive

Vehicles with this feature always send engine power to all four wheels. It is fully automatic, and adjusts itself as needed for road conditions.

When using a compact spare tire on an AWD vehicle, the system automatically detects the compact spare and disables AWD. To restore AWD operation and prevent excessive wear on the system, replace the compact spare with a full-size tire as soon as possible. See Compact Spare Tire on page 10‑75 for more information.

    Brakes
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    See also:

    Ultrasonic Parking Assist
    For vehicles with the Ultrasonic Rear Parking Assist (URPA) system, it assists the driver with parking and avoiding objects while in R (Reverse). URPA operates at speeds less than 8 km/h (5 mph), ...

    Parking brake
    - Be sure the parking brake is fully released before driving. Failure to do so can cause brake failure and lead to an accident. - Do not release the parking brake from outside the vehicle ...

    Power Door Locks
    A power door lock switch is located on each of the front door trim panels. Use this switch to lock or unlock the doors and liftgate. Power Door Lock Switch Location 1 - Unlock 2 - Lock If y ...