Skip the auto shop - Our mechanics make house calls

Q: Glass shattered all on its own

asked by on

When I was warming up my 2012 Ford Focus before work the other day, I turned on the defroster and the rear window exploded into a ton of little glass pieces. It made a huge mess and I had to find another way to get to work. I can’t drive in the cold without the window. Shame on Ford for making a defroster that could destroy the window! My car barely has 66,000 miles on it. Is there a way to ensure this won’t happen again??

The rear window with defrost grid on your Ford Focus is made of tempered glass. Tempered glass is designed to break into little pieces when it shatters to help prevent large pieces from possibly hurting someone. The temper process is supposed to allow the glass to handle hot and cold conditions without breaking. If the temper process did not release tension on the glass during this process, the glass may be prone to break when subjected to hot and cold conditions. The replacement glass installed should be okay and not prone to breaking, however there is no guarantee. There are no recalls or investigations with the NHTS however, there have been some complaints submitted. Until a recall is issued, you will have to pay to replace the window if it happens again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Glass shattered all on its own

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2008 Ford Focus, won't go in reverse.

Hi, thanks for writing in. I'd be happy to help. You may have a reverse clutch band is not getting actuated or is slipping. I suggest you have the transmission pressures checked by a transmission mechanic to see if the...

Q: What should I know about the floor mats?

While they might seem pretty insignificant, your floor mats are actually a serious matter. When the right floor mats are installed correctly, you should hardly notice them, but the wrong mats, or even the right mats not installed correctly, can...

Q: How do I clean the windows and wiper blades?

It is normal for the windows to become dirty. Proper cleaning will increase your visibility when the windows become dirty. To clean the windows and wiper blades. Wipe the wiper blades down with rubbing alcohol. Wipe the windows and...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...