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:
Digital clock*
Automatic mode and manual mode is available for digital clock adjustment:
Select the automatic mode or the manual mode by performing the following operations:
1. Press the PWR switch (A) to turn ON the audio system. 2. Enter the function setup ...
4-wheel drive operation
Your vehicle has been designed primarily for use on pavement. But its unique
4-wheel drive system allows you to occasionally travel on unpaved roads, to campgrounds,
picnic sites, and similar locations. Not only does this ensure better handling o ...

Automatic Transmission