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:

Selecting tire chains
Use the correct tire chain size when mounting the snow chains. Chain size is regulated for each tire size. Side chain 1. 0.12 in. (3 mm) in diameter 2. 0.39 in. (10 mm) in width 3, 1.18 in. (30 ...

Replacement sensor
Should the sensor require replacing, it should be carried out by a Dealer/Authorised Repairer. A replacement sensor must be fitted to a running wheel in order to be recognised by the system. The v ...

Door locks
Manual Door Locks Use the manual door lock plunger to lock the doors from inside the vehicle. If the plunger is down when the door is closed, the door will lock. Make sure the keys are not insi ...