GMC Terrain: Head Restraints
Front Seats
The vehicle's front seats have head restraints in the outboard seating positions.
WARNING
With head restraints that are not installed and adjusted properly, there is a greater chance that occupants will suffer a neck/ spinal injury in a crash. Do not drive until the head restraints for all occupants are installed and adjusted properly.

Adjust the head restraint so that the top of the restraint is at the same height as the top of the occupant's head. This position reduces the chance of a neck injury in a crash.

The height of the head restraint can be adjusted. Pull the head restraint up to raise it. Try to move the head restraint to make sure that it is locked in place.
To lower the head restraint, press the button, located on the top of the seatback, and push the head restraint down. Try to move the head restraint after the button is released to make sure that it is locked in place.
The front seat outboard head restraints are not designed to be removed.
Rear Seats
The vehicle's rear seat has head restraints in the outboard seating positions that cannot be adjusted. Rear outboard head restraints are not designed to be removed.
See also:
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.
...
Storage spaces
CAUTION:
● Never leave lighters, canned carbonated beverage, and spectacles in the cabin
when parking the vehicle in hot sunshine. The cabin will become extremely hot, so
lighters and other flammable items may catch fire and unopened drin ...

Roof