GMC Terrain: Doors / Manual Liftgate
To unlock the liftgate, press 
on
the power door lock switch or press
on the Remote Keyless Entry (RKE)
transmitter twice within
five seconds. See Remote Keyless
Entry (RKE) System Operation.
To open the liftgate, press the touch pad on the bottom of the liftgate and lift up.
Use the pull cup to lower and close the liftgate. Do not press the touch pad while closing the liftgate. This may cause the liftgate to be unlatched.
If equipped with Keyless Access, the liftgate can be opened when locked if the RKE transmitter is within 1 m (3 ft) of the touch pad. See Remote Keyless Entry (RKE) System Operation.
The liftgate has an electric latch. If the battery is disconnected or has low voltage, the liftgate will not open. The liftgate will resume operation when the battery is reconnected and charged.
Always close the liftgate before driving.
Liftgate
Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate...
Power Liftgate Operation
Warning
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing...
Other information:
GMC Terrain 2018-2021 Owners Manual: Setting Cruise Control
If is on when not in use, –SET or +RES could get bumped and go into cruise when not desired. Keep off when cruise is not being used. To set a speed: Press to turn the cruise system on. Get up to the desired speed. Press and release –SET...
GMC Terrain 2018-2021 Owners Manual: Engine Oil Life System
When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably...
