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:
Maintenance precautions
When performing any inspection or maintenance
work on your vehicle, always take care
to prevent serious accidental injury to yourself or
damage to the vehicle. The following are general
precautions which should be closely observed.
- Par ...
Keyless operation system*
The keyless operation system allows you to lock and unlock the doors and tailgate
and start the engine simply by carrying the keyless operation key with you. The
keyless operation key can also be used as the keyless entry system remote control
...

Automatic Transmission