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?
Recommended services
Get a Quote

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Small transponder stuck under navigation panel

Hello there, this is a rather rare issue. If the navigation unit has closed on the transponder then it is likely that the navigation unit was shut off for safety reasons when it jammed. The navigation unit assembly may require...

Q: Car overheated while idling. What is wrong

There are a few faults that will cause your 2013 Hyundai Elantra to overheat when idling. The most common would be the electric fans not functioning. When air is flowing over the radiator the car works fine, but when the...

Q: Sunroof won't close

I would recommend having your sunroof inspected by a certified mechanic. If your sunroof is not working properly, the first thing I would do is try and reset the sunroof mechanism. This can be done by either unplugging the motor,...

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.