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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    Head restraints
    Adjust the head restraint so that the top of the head restraint is above the centre line of the head. An incorrectly adjusted head restraint increases the risk of death or serious injury in the ...

    Windshield wipers and washers
    The windshield wiper/washer control lever is located on the right side of the steering column. The front wipers are operated by rotating a switch, located at the end of the lever. For informatio ...

    Adding Fluid
    Fluid should be added only to fill hole until fluid begins to run out of the hole. ...