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 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.
See also:
Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, OnSta ...
Ignition Positions
The ignition switch has four different positions.
Notice: Using a tool to force the key to turn in the ignition could cause damage
to the switch or break the key. Use the correct key, make sure i ...
Bold styling
GMC Terrain has a balanced, athletic stance and offers a commanding view of
the road. Its design is characterized by bold, muscular fender flares,
representing GMC's aesthetic. Surfacing is angula ...





