GMC Terrain: Keys and Locks / Delayed Locking
This feature delays the actual locking of the doors until five seconds after all doors are closed.
Delayed locking can only be turned on when the Open Door Anti-Lockout feature has been turned off.
When 
is pressed on the power
door lock switch with the door open,
a chime will sound three times
indicating that delayed locking is
active.
The doors will then lock automatically five seconds after all doors are closed. If a door is reopened before five seconds have elapsed, the five-second timer will reset once all the doors are closed again.
Press 
on the door lock switch
again, or press 
on the RKE
transmitter, to override this feature
and lock the doors immediately.
Delayed locking can be programmed. See Vehicle Personalization.
Automatic Door Locks
The doors will lock automatically
when all doors are closed, the
ignition is on, and the vehicle is
shifted out of P (Park).
If a vehicle door is unlocked and
then opened and closed, the doors
will lock either when your foot is
removed from the brake or the
vehicle speed becomes faster than
13 km/h (8 mph)...
Other information:
GMC Terrain 2018-2025 Owners Manual: Rear Compartment Fuse Block
The rear compartment fuse block is behind a trim panel on the side of the rear compartment. Remove the trim plate to access the fuse block. The vehicle may not be equipped with all of the fuses and relays shown. Fuses Usage F1 Exhaust fuel heater F2 Liftgate F3 Trailer au..
GMC Terrain 2018-2025 Owners Manual: Courtesy Lamps and Dome Lamps
Courtesy Lamps The courtesy lamps come on when any door is opened and the OFF indicator light is turned off. See Dome Lamps. Dome Lamps The dome lamp controls are in the overhead console. To operate, press the following buttons: OFF : Press to turn off the dome lamps when a door is open. An indicator light on the button will turn on when the dome lamp override is activated. Press O..
