Safety Locks
The vehicle has rear door security locks to prevent passengers from opening the rear doors from the inside.

Open the rear doors to access the security locks on the inside edge of each door.
To set the locks, insert a key into the slot and turn it to the horizontal position. The door can only be opened from the outside with the door unlocked. To return the door to normal operation, turn the slot to the vertical position.
See also:
Hill Start Assist (HSA)
This vehicle has a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward ...
Vehicle Overview
GMC's Terrain is the twin to the Chevrolet Equinox. The five-seat crossover
comes in front- or all-wheel drive with a four-cylinder or V-6 engine.
Competitors include the Ford Escape, Toyota RAV4 ...
Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑18. ...





