Im having an issue with my SVTs sunroof. The sunroof is supposed to move two ways, up/vent and slide back/open. When i press the back/open button nothing happens, if i press up it goes up and works fine but then i cant get it to go back down because the back button doesnt work. I have to press the up button a bunch of times real fast and it goes down but not to its auto start stop position, i have to guestimate where the stop positon is so that it will seal properly. If i continue to hold the up button it will go past the start stop position and go up back to its vent position and stop again. Has anyone seen this problem before or know or have any ideas on how to fix this problem?