GMC Terrain: Keys, Doors, and Windows / Roof

Sun Visors

Pull the sun visor down to block glare. Detach the sun visor from the center mount to pivot to the side window and, if equipped, extend along the rod...

Sunroof

Sunroof Switch Sunshade Switch If equipped, the sunroof only operates when the ignition is on or in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active...

Other information:

GMC Terrain 2018-2026 Owners Manual: Lumbar Adjustment and Reclining Seatbacks

Lumbar Adjustment If equipped, press and hold the front or rear of the control to increase or decrease lumbar support. Reclining Seatbacks Warning Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the seat belts cannot do their job...

GMC Terrain 2018-2026 Owners Manual: Cooling System

1.5L Gas Engine Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap 1.6L Diesel Engine Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap 2.0L Gas Engine Engine Cooling Fans (Out of View) Engine Coolant Surge Tank and Pressure Cap Warning An underhood electric fan can start up even when the engine is not running and can ..