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:
Child restraint
When transporting children in your vehicle, some type of child restraint system
should always be used according to the size of the child. This is required by law
in most countries. The regulations concerning driving with children in the front
s ...
Rear differential gear oil
There is no rear differential gear oil level
gauge. To check the rear differential gear
oil level, consult your SUBARU dealer for
inspection. ...

Automatic Transmission