GMC Terrain: Initial Drive Information / Passenger Sensing System

Head Restraint Adjustment and Seat Belts

Head Restraint Adjustment Do not drive until the head restraints for all occupants are installed and adjusted properly. To achieve a comfortable seating position, change the seatback recline angle as little as necessary while keeping the seat and the head restraint height in the proper position...

Mirror Adjustment

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Other information:

GMC Terrain 2018-2025 Owners Manual: 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 second..

GMC Terrain 2018-2025 Owners Manual: Starting the Engine

Shift the vehicle into P (Park) or N (Neutral). To restart the engine when the vehicle is already moving, use N (Neutral) only. Caution Do not try to shift to P (Park) if the vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when the vehicle is stopped. Caution If you add electrical parts or accessories, you could change the way the engine operates. A..