GMC Terrain: Drive Systems

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.

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Special driving conditions
Hazardous driving conditions When hazardous driving conditions are encountered such as water, snow, ice, mud, sand, or similar hazards, follow these suggestions: • Drive cautiously and allow extra distance for braking. • Avoid sudden movement ...

Head Restraints
Head Restraints Head restraints are designed to help reduce the risk of neck injuries in case of an accident. Adjust the head restraint to the position which places the center of the head restraint closest to the top of your ears. If this is no ...