Too bad that GMC did not include a Garage door opener in the Terrain even at an added cost. I found a very small garage door opener remote that would open my garage door and the motorized gate to our subdivision. I mounted the unit just below the handle to the storage unit between the front seats. The electronic opener is approximately 3" by 1 1/2" by 5/8" and is mounted with velro.
The unit is " CLICKER MODEL KLIK1U " and is sold at the Home Depot. It is manufacturered by the Chamberlain Co. Cost approximately $35.
The unit is " CLICKER MODEL KLIK1U " and is sold at the Home Depot. It is manufacturered by the Chamberlain Co. Cost approximately $35.