More than 30 owners of the 2010 Ford F-150 model have complained to the National Highway Traffic Safety Administration (NHTSA) that an alleged glitch in their rear defrosters has caused their back lites to shatter or spiderweb in cracks.
“The contact owns a 2010 Ford F-150. The contact stated that the passenger and driver’s side windows suddenly shattered. The vehicle was taken to the dealer where the failure could not be diagnosed. The vehicle was repaired. The manufacturer was notified of the failure,” an owner reported to NHSTA on June 16, 2014.
Another owner reported on May 5, 2014, “Turned defrost on rear power slider window and heard a loud explosion like a gunshot and the rear window on the passenger side shattered. There are small pieces of glass in the bed of the truck and on the backseat. Temperatures were in the mild 30s’ at the time. This was a problem with the defrost causing the glass to shatter. Ford will not cover repairs or replacement of the glass. Mileage was less than 30,000. Truck is also covered under extended maintenance plan, but Ford will not cover it there either.”
In another reported instance, the owner says “I turned on the rear window defrost and a few minutes later the right-rear window (of the three-piece power sliding rear window) exploded.”
“The driver’s side pane of three-paned rear window spider web cracked throughout the entire thing from the rear defrost overheating. While taping the window up, I could feel the tiny shard of glass falling off and sometimes cutting me,” another owner reported to NHTSA.
Several of the owners involved in these alleged incidents reported the situations to dealers and Ford; however, they claim Ford would not cover the repairs.
“We use tempered glass in our windows, which meets all NHTSA safety requirements and is designed to reduce the risk of injury from glass by breaking into small pieces. There are many reasons that could cause glass to break,” says Kelli Felker, Ford’s safety communications manager.
NHTSA does not have an open investigation of this reported issue; however, there are two service bulletins issued on the 2010 Ford F-150 model that could be related.
In Service Bulletin No. TSB-13-5-15, the automaker reports, “On some vehicles, the rear sliding glass center panel has a water leakage at the side panel. (Model 2010-2013 F-150).”
In Service Bulletin No. ASI-32259, Ford reports, “A power sliding rear window, on some vehicles, may experience a possible inoperative rear-window defrost. (Models 2010-2013 F-150.)