I was driving home on the highway. I had the rear defrost running as it was cold overnight and the windows had frosted over. As I was driving, I heard a loud pop and saw that the rear passenger side window had been shattered in a spider web pattern. I got home and was finally able to inspect the windshield. I observed the "spider web" effect starting in the lower left hand corner of the glass. There was a fluid seeping out from the bottom of the glass at the point of origin. The glass also has a discoloration as if it had been heated. I was able to search online and find numerous other people with the same problem. I also found several accounts where the pop had caused a fire and melted portions of the window and its framing.

- St. Charles, MO, USA

Last week I started my morning commute @ 5am. 5 minutes after departure - I heard the equivalent of a 22 caliber gun being fired in the cab of my 2010 Ford F150 platinum. Alarmed by the sound I swerved into the adjacent lane, thankfully there were not many other drivers on the road. I exited the vehicle and began a visual inspection, immediately, I saw my passenger rear window shattered and smoldering in the lower left corner. After a closer look, this appeared to be where the defrosting mechanism was located in the glass. There was a metal substance being leaked in between the cab and the bed of the truck. I hope this was not lead or Mercury, in my curiosity I touched and then thought about the old thermometers in grade school.

- Allen Park, MI, USA

The contact owns a 2010 Ford F-150. The contact stated that the rear window defroster was engaged when the contact heard a loud, abnormal noise. She then noticed that the rear window was fractured. The vehicle was not taken to the dealer for inspection or repair. The manufacturer was not contacted. The failure and the current mileage was 18,000.

- Gainsville , VA, USA