GMC Terrain: Keys and Locks / Lockout Protection
If the ignition is on or in ACC/ ACCESSORY and the power door lock switch is pressed with the driver door open, all the doors will lock and only the driver door will unlock.
If the vehicle is off and locking is requested while a door is open, when all doors are closed the vehicle will check for RKE transmitters inside. If an RKE transmitter is detected and the number of RKE transmitters inside has not reduced, the driver door will unlock and the horn will chirp three times.
Lockout Protection can be manually
overridden by pressing and holding
on the power door lock switch.
Open Door Anti-Lockout
If Open Door Anti-Lockout is turned on and the vehicle is off, the driver door is open, and locking is requested, all the doors will lock and the driver door will remain open. Press the button again to lock the driver door. The Open Door Anti-Lockout feature can be turned on or off. 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)...
Safety Locks
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Manual Safety Locks
If equipped, the safety lock is on the
inside edge of the rear doors...
Other information:
GMC Terrain 2018-2026 Owners Manual: Hill Descent Control (HDC)
HDC can be used when driving downhill. It sets and maintains vehicle speed while descending a very steep incline in a forward or reverse gear. The HDC switch is on the center console. Press to enable or disable HDC. Vehicle speed must be below 50 km/h (31 mph)...
GMC Terrain 2018-2026 Owners Manual: Heated Steering Wheel and Horn
Heated Steering Wheel : If equipped, press to turn it on or off. A light next to the button displays when the feature is turned on. The steering wheel takes about three minutes to start heating. Horn Press on the steering wheel pad to sound the horn...
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Categories
Vehicle Personalization
The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available.
For System, Apps, and Personal features and functions, see “Settings” in the infotainment manual.
To access the vehicle personalization menu:
Touch the Settings icon on the Home Page of the infotainment display. Touch Vehicle to display a list of available options. Touch to select the desired feature setting. Touch
or R to turn a
feature
off or on.
Touch 
to go to the top
level
of the Settings menu.
