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:
Automatic transmission
CAUTION:
Damage to the transmission may occur if the following
precautions are not observed:
• Shift into PARK only after the vehicle has come to
a complete stop.
• Shift into or out of REVERSE only after the
vehicle has come to a com ...
LW/MW/FM digital tuning radio with CD changer*
The audio system can only be used when the ignition switch is in the “ON” or
“ACC” position.
NOTE:
● When listening to the audio system with the engine stopped, be sure to turn the
ignition switch to the “ACC” position.
...

Automatic Transmission