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.
See also:
Positive Retention Floor Mat
WARNING: Always use
floor mats that are designed
to fit the foot well of your vehicle.
Only use floor mats that leave the
pedal area unobstructed. Only use
floor mats that are firmly secured
to retention posts so that they
cannot slip out ...
Maintenance schedule
The scheduled maintenance items required
to be serviced at regular intervals
are shown in the “Warranty and Maintenance
Booklet”.
For details of your maintenance schedule,
read the separate “Warranty and Maintenance
Booklet”. ...

Automatic Transmission