GMC Terrain: Initial Drive Information / Liftgate
Manual Liftgate Operation
Unlock the vehicle before opening the liftgate.
To open the liftgate, press the touch pad on the bottom of the liftgate and lift up.
Do not press the touch pad while closing the liftgate. This may cause the liftgate to be unlatched.
Power Liftgate Operation
If equipped with a power liftgate, the switch is usually on the driver door. The switch can also be on the overhead console. The vehicle must be in P (Park).
Choose the power liftgate mode by
turning the dial on the switch to
either the 3/4 or MAX position.
Press 
to open or close the
liftgate.
Hands-Free Liftgate The liftgate will not operate if the RKE transmitter is not within 1 m (3 ft).
To operate, kick your foot straight up in one swift motion under the rear bumper between the left exhaust pipe and the license plate, then pull it back.
Door Locks
To lock or unlock the vehicle from
the outside, press or
on the
Remote Keyless Entry (RKE)
transmitter.
: Press to lock the doors.
: Press to unlock the doors...
Windows
The power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active.
Using the window switch, press to
open or pull to close the window...
Other information:
GMC Terrain 2018-2026 Owners Manual: Weather Conditions Affecting ACC
If the interior temperature is extremely high, the instrument cluster may indicate that ACC is temporarily unavailable. This can be caused by extreme hot weather conditions with direct sunlight on the front camera. ACC will return to normal operation once the cabin temperature is lower...
GMC Terrain 2018-2026 Owners Manual: ACC Automatically Disengages
ACC may automatically disengage and the driver will need to manually apply the brakes to slow the vehicle if: The front camera is blocked or visibility is reduced. The Traction Control System (TCS) or StabiliTrak/ESC system has activated or been disabled...
