The contact owns a 2010 Ford F-150. While driving 30 mph, the contact activated the rear defroster and the rear window fractured without warning. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 33,000.

- Ohmaha, OK, USA

The contact owns a 2010 Ford F-150. While driving approximately 20 mph, the contact heard a loud noise when the rear window defogger was activated. The rear window exploded. The dealer stated that the failure was a known issue. The manufacturer was not made aware of the failure. The failure mileage was 44,000.

- Glen Burnie, MD, USA

The contact owns a 2010 Ford F-150. While driving 65 mph, the rear window defroster was activated and the rear passenger windshield fractured without warning. The dealer diagnosed that the rear defroster overheated and caused the rear window to fracture. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was not available.

- Larimore, ND, USA

The contact owns a 2010 Ford F-150. While driving approximately 60 mph, the rear passenger side window shattered without warning when the defroster was activated. The vehicle was not diagnosed or repaired. The approximate failure mileage was 100,000. The VIN was unavailable.

- Frost Proof, FL, USA

The contact owns a 2010 Ford F-150. The contact stated that the rear defrost system was defective. The rear defrost system overheated, causing the rear windshield to fracture. The vehicle was previously taken to the dealer for the failure; however, the dealer replaced the rear windshield and did not provide a diagnostic to locate the cause of the defrost system overheating. The windshield was not replaced. The manufacturer was not notified. The approximate failure mileage was 12,000....updated 04/12/16

- Huntington Station, NY, USA

The contact owns a 2010 Ford F-150. While activating the window defroster while driving, the rear window shattered. The failure recurred twice. The vehicle was taken to a dealer where it was diagnosed that the window needed to be replaced. The vehicle was repaired, but the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 19,000.

- Bath, PA, USA

The contact owns a 2010 Ford F-150. While driving approximately 30 mph, the contact heard an abnormal noise. The contact pulled into a parking space and the rear window was shattered and burn marks were at the center glass. The rear defroster had been activated for approximately twenty minutes. The vehicle was not diagnosed or repaired. The manufacturer was notified. The approximate failure mileage was 49,000.

- Rockford, IL, USA

The contact owns a 2010 Ford F-150. When the contact started the vehicle and activated the rear defogger, the rear window exploded. The vehicle was taken to the dealer, but was not repaired. The manufacturer was notified of the failure. The failure mileage was 33,000.

- Stanfordville, NY, USA

The contact owns a 2010 Ford F-150. While the vehicle was parked, the rear window defroster was activated and the rear window shattered. The vehicle was taken to the dealer. The technician diagnosed that the defrost connector plug needed replacement. The vehicle was repaired. The manufacturer was notified of the failure. The failure recurred one other time. The approximate failure mileage was 18,681.

- Pennsville, NJ, USA

The contact owns a 2010 Ford F-150. The contact stated that while attempting to start the vehicle, the rear defroster was activated and the rear window shattered. The vehicle was taken to a dealer. The technician diagnosed that the rear window needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 45,200. Updated 4/15/15

- Ottunwa, IA, USA

Turned rear window defroster on, 5 minutes later heard a loud pop looked in rear view mirror and the passenger side rear window was shattered. When I first turned the defroster on I noticed that it didn't appear to be working. No visible lines across the center window. I turned it off and back on and it appeared to be working as I could see faint lines across the glass where the condensation was disappearing.

- Mt Pleasant, SC, USA

Turned the rear defroster on this morning and heard a loud bang. Looking back I realized that back window had spider cracks all over. I did research today and realized that this is a re-occurring problem. This is going to cost $800 on Thursday morning to have the entire window replaced.

- Forest Hill, MD, USA

The rear defrost has been working intermittently for the last couple of weeks. Last week I was driving home and heard a loud explosion which sounded like a gun shot. I was so startled that I swerved into another lane (luckily there was no oncoming traffic). I pulled over and noticed the passenger side of the 3 panel rear window was spidered. We have a 2010 FX4 supercrew.

- Honeoye Falls, NY, USA

The contact owns a 2010 Ford F-150. Upon starting the vehicle, the contact activated the rear window defroster and the rear passenger window shattered. The outside temperature was 31 degrees Fahrenheit and there was ice on the window. Approximately five minutes later, the contact heard a loud abnormal pop sound near the vehicle. The contact discovered the shattered window along with a substance that melted from the explosion. The vehicle was not diagnosed or repaired. The approximate failure mileage was 37,000.

- Princess Anne, MD, USA

Contacted Ford first about rh rear defroster not working. Luckily only had the burnt smell and not the explosion of glass. Being this is the highest number of complaints on this site Ford should really consider looking into this before possibly a child in a car seat gets a face full of glass. As usuall from Ford I received the usual form letter back about not being under any recalls. Vehicle only has 32,400 miles on it. Would like to know the actual manufacture Ford buys these from. Even offered if they were to send me a rear unit I would replace it myself as being a auto tech all my life and send the old unit back for verification.

- Owensboro, KY, USA

I allowed my car to warm up. It was approximately 28 degrees outside. I began to drive my car. I engaged the rear defroster. Within 60 seconds I heard a loud bang, similar to a gun shot. Along with a smell of smoke. Then glass went flying towards the front of vehicle. After looking around I noticed the rear window was shattered. The rear window consists of three pieces of glass. Only the passenger (far right side) was shattered. Luckily, there was no people sitting in the back seat at the time. Took it to the Ford dealership, they said the Ford company has not addressed the issue. I was told numerous F150's have had similar problems. Ford refuses to cover repairs.

- Lake Zurich, IL, USA

Cpsc: I1310446A. 2010 Ford F150. Consumer stated his rear window exploded after turning on the rear defrost....updated 03/20/13

- Carmel, IN, USA

Rear window defroster/window assembly connection defective, shorts out causing fire and glass breakage. I dropped off my daughter at preschool and five minutes later I noticed smoke coming out of the passenger side rear defroster window behind her car seat. I pulled over to find this becoming a fire. It began as smoke, then spark, and then flame. Fortunately, I had a bottle of water in my truck, which I began to pour on it to stop. It got worse with the sparks, but eventually went out. While trying to distinguish the fire, the "explosion" occurred shattering the rear window. I took this to my local Ford dealer and began to research issue. I quickly found several Ford forums where other people experienced the exact same issue on 2010 F150 Ford trucks. Here's a link to one that helps explain the issue clearly. I posted my experience in post 38...www.F150forum.com/F38/rear-window-defroster-exploding-rear-window-129167/.. I see there have been no reports to you regarding this issue previously. Obviously a defective defroster/window unit causing a vehicle to catch fire is a dangerous issue. But there was no need to push issue further due to their Ford dealer understanding the issue and covering the repair under warranty. I have Ford's premiumcare extended warranty which should cover this but my dealer is seeing only as glass breakage and refusing to cover it under warranty. There would be no glass breakage if the defective assembly didn't cause a fire, and if I didn't have something to put out the fire there would have been far more damage..with cold weather coming, and more recent incidents posted, there will be more instances of this in the near future on 2010 Ford F150 trucks. With the redesign of replacement part Ford is aware that the original design is flawed. Updated 11/05/12 updated 11/07/2012

- Phillipsburg, NJ, USA