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
...

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:

Rear center seating position
The head restraint is not intended to be used at the lowest position. Before sitting on the seat, raise the head restraint to an appropriate position depending on your sitting height. ...

Rear Wiper Blade Replacement
The rear wiper blade and wiper arm have a cover for protection. The cover must be removed before the wiper blade can be replaced. To remove the cover: 1. Slide a plastic tool under the cover and ...

Construction type
Applicable construction of this tire. For example, “TUBELESS STEEL BELTED RADIAL” ...