GMC Terrain: Sunroof - Roof - Keys, Doors, and Windows - GMC Terrain Owner's ManualGMC Terrain: Sunroof

On vehicles with a sunroof, the switches used to operate it are on the headliner above the rearview mirror. The ignition must be in ON/ RUN or ACC/ACCESSORY, or in Retained Accessory Power (RAP) to operate the sunroof. See Ignition Positions on page 9‑21 and Retained Accessory Power (RAP) on page 9‑25.

○ Press and hold the front or rear of the driver side switch to open or close

○ Press and hold the front or rear of the driver side switch to open or close the sunroof. The sunshade automatically opens with the sunroof, but must be closed manually.

○ Press and hold the rear of the passenger side switch to vent the sunroof. Press and hold the front of the switch to close.

Roof
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Express-open/Express-close
Press and release the front or rear of the driver side switch to express-open or express-close the sunroof. ...

See also:

How to use brightness control and display ON/OFF button
To change the display brightness, push the button. Pushing the button again will change the display to the day or the night display. If no operation is performed within 5 seconds, the display ...

Stop/Tail/Turn Signal/ Sidemarker Lamp
To replace one of these lamps: 1. Open the liftgate. See Liftgate on page 2‑9. 2. Remove the two screw covers from the taillamp assembly. 3. Remove the two screws securing the taillamp asse ...

Seats
Seats - Do not ride in a moving vehicle when the seatback is reclined. This can be dangerous. The shoulder belt will not be against your body. In an accident, you could be thrown into it ...