GMC Terrain: Keys, Doors, and Windows / Vehicle Security

Hands-Free Operation

The liftgate may be operated with a kicking motion under the rear bumper between the left exhaust pipe and the license plate. The RKE transmitter must be within 1 m (3 ft) of the rear bumper to operate the power liftgate hands-free...

Vehicle Alarm System

This vehicle has an anti-theft alarm system. The indicator light, on the instrument panel near the windshield, indicates the status of the system: Off : Alarm system is disarmed...

Other information:

GMC Terrain 2018-2025 Owners Manual: Door Locks

Warning Unlocked doors can be dangerous. Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The doors can be unlocked and opened while the vehicle is moving. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked...

GMC Terrain 2018-2025 Owners Manual: Engine Exhaust

Engine Exhaust Warning Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: The vehicle idles in areas with poor ventilation (parking garages, tunnels, deep snow that may block underbody airflow or tail pipes)...