GMC Terrain: Vehicle Security - Keys, Doors, and Windows - GMC Terrain Owner's ManualGMC Terrain: Vehicle Security

Manual Operation of Power Liftgate
To change the liftgate to manual operation, turn the mode switch to the OFF position. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. ...

Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it impossible to steal. ...

See also:

Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer. Never leave the keys insid ...

Modifications
If you are considering modifying your vehicle in any way to accommodate a disability, for example by altering or adapting the driver's or front passenger's seat(s) and/or airbag systems, pleas ...

Service The Parksense Rear Park Assist System
When the ParkSense Rear Park Assist System is malfunctioning, the instrument cluster will actuate a single chime, once per ignition cycle, and it will display the “SERVICE PARK ASSIST SYSTEM†...