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 2018-2026 Owners Manual: Heated Rear Seats
Warning If temperature change or pain to the skin cannot be felt, the seat heater may cause burns. See the Warning under Heated and Ventilated Front Seats. If equipped, the rear heated seat buttons are on the rear of the center console. Press to heat the left or right outboard seat cushion and seatback...
GMC Terrain 2018-2026 Owners Manual: Wiper Blade Replacement
Windshield wiper blades should be replaced periodically. See Maintenance Schedule. Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts. Caution Allowing the wiper arm to touch the windshield when no wiper blade is installed could damage the windshield...
