Just traded in my 2008 Mercedes SLK and there is a button in the overhead above the windshield you push to open and close the garage door. Brought home my new EX Niro and can't find any way it opens the garage door. Fortunately, I have a keypad beside the garage door outside and a button in the stairwell going down to the garage but can it be that my car can't be taught to open the door for me with a push of a button? Is it time to buy a new garage door opener? Didn't find any instructions in any of the owners manuals that came with the car. What is going on here?