GMC Terrain: Keys, Doors, and Windows / Exterior Mirrors

Immobilizer Operation

This vehicle has a passive theft-deterrent system. The system does not have to be manually armed or disarmed. The vehicle is automatically immobilized when the transmitter leaves the vehicle...

Convex Mirrors

Warning A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right...

Other information:

GMC Terrain 2018-2025 Owners Manual: Raising the Seatback

Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked. Warning A seat belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash...

GMC Terrain 2018-2025 Owners Manual: Towing Equipment

Hitches Always use the correct hitch equipment for your vehicle. Crosswinds, large trucks going by, and rough roads can affect the trailer and the hitch. Proper hitch equipment for your vehicle helps maintain control of the vehicle-trailer combination...