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:
Battery replacement
Be careful not to allow children to
swallow the battery and removed parts. ...
Wiper and washer switch
Windscreen wipers
The windscreen wipers can be operated with the ignition switch in the “ON” or
“ACC” position. If the blades are frozen to the windscreen or rear window, do not
operate the wipers until the ice has melted and the blades ...

Automatic Transmission