My front roof vent lid took a hike for the second time since I've owned my TC. It vibrates open while driving in spite of being tightened down and then shakes itself to pieces. This one is most like...
We had the same problem with our pop-ups (Northstar and Outfitter)so we started positioned a pillow under the vent so when the roof was down in travel mode it would prevent the vent from opening by putting pressure on the handle. Did not have a problem after that.