NHTSA Complaint #11510234 — 2016 BUICK ENVISION

My car was parked in the driveway, and it was locked. The keys were in a bowl next to the door. During the night the sunroof opened with no contact from anyone and it rained that night and flooded the inside of the car. We did research on the issue and this has happened to many Buick owners. I put the car under shelter and got out as much water as I could. The sunroof would not operate to close it. First thing Monday morning I was at the dealers. The dealer stated that had never seen that problem. I gave them some of the information I found on the internet. They could not get the sunroof to close. They ordered the parts and kept the car to continue drying it out. Once the parts arrived and were installed they got the sunroof to close but then it opened about half way. They are talking to Buick engineers. Luckily this happened while my car was parked. However, had I been driving and rain started poring into the car it could easily cause an accident. It would be a serious distraction to the driver in addition to the steering wheel becoming slick with water and hard to handle. Also it could cause other electrical components to fail due water in their system and cause an accident. I believe this is an electrical manufacturing defect and needs to be addressed. Currently my car is still at the dealer.