NHTSA Complaint #11527142 — 2015 FORD F-150

Shortly after turning on the rear window defroster the vehicle interior began to fill with a strong electrical burning odor and then within about 30 seconds the back glass shattered with a loud pop that was very startling and distracting. I took photos but plan to have the window replaced as soon as possible since I need it to get to work. This happened while driving at a slow speed but if it had happened at high speed then it could have caused me to swerve and lead to an accident. I called the Ford dealer and they were not aware of this being a problem. However, the retail glass repair shop said that they frequently see this issue with F-150s. The vehicle has not been inspected by manufacturer, police, insurance representatives or others. Aside from the electrical burning smell there were no indications the impending glass shattering. I did some internet searching and found that many ofther F150 owners have had the exact same issue and all report that it occurred when the rear window defroster was activated.