Skip the auto shop - Our mechanics make house calls

Q: While highway driving, sunroof exploded outward

asked by on

We had a very frightening experience. I was driving the car on the interstate at a higher speed when the sunroof exploded! The bang was deafening! Before this happened, the sunroof was closed, all windows were closed and the air conditioning was on. There were no cars near us, so no one threw anything; plus we were not on a bridge. When I took it to the Lexus dealership, I was told that there was not a problem and that something had to have hit the sunroof for it to explode. I asked them why was the remaining glass bowed outward. It would have been bowed into the car if something had hit it. They had no response. They also stated that they didn't see any record of this happening to this make/model. While researching, I have found multiple cases like mine, with my make/model. It might be cheap glass and/or a roof-design flaw. Whatever caused it, it is a Very dangerous problem and there might even be cases where accidents happened due to it and afterwards no one knew that is what caused the accident. So you can see why we are scared to drive our car. In your experience have you heard of this before and can you tell me if there is a fix for this so that we can safely drive our car again?

A: Hello there, this is an extremely rare circ...

Hello there, this is an extremely rare circumstance. In my research I have found several claims from various manufactures with spontaneous glass breaking from either the windows or sunroof. This can happen for a variety of reason from cracks to manufacturing flaws. I can't provide an answer as to why this happened any many factors would come into play. In any case the glass should be able to be replaced and last normally. If you'd like a second opinion on this, a qualified Technician, such as one from YourMechanic, will be able to inspect your window and figure out how this happened.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Bluetooth prevents accessing Destination Assist

Hello there, a few different faults can cause the bluetooth system to act up like this. The most common issues include a wiring fault, phone incompatibility, or bluetooth module failure. A qualified technician, such as one from YourMechanic, will be...

Q: 2013 BMW 650i shakes, loses power, warning lights come on

Hey there, thanks for writing in about your 2013 BMW 650i. Solutions have been found to problems similar to yours, but two vehicles with the same symptoms may still require different repairs. Your best bet is to have an experienced...

Q: Yukon Denali Sun Roof Leak Repair

Yes, it is possible to replace just the rubber seal without replacing the entire sunroof. This can be a tricky process to replace. I would suggest having a certified expert, like one from YourMechanic, come to your home to inspect...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...