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I just noticed significant cracking in my rear panoramic glass while washing my car this morning, so it occurred some time in the last few weeks. I’ve got the squiggly crack towards the rear of the pane that goes all the way across but then the crack continues towards the front, as well. I can’t tell if there’s any impact- I don’t see any, but it’s hard to tell. I’m in Southern California and I park outside, so the car is in direct sunlight every day. I scheduled an appointment for service for later this week for an hvac issue as well as the rear seatbelt recall, so I’ll have them look at this and will report back.
 
I just noticed significant cracking in my rear panoramic glass while washing my car this morning, so it occurred some time in the last few weeks. I’ve got the squiggly crack towards the rear of the pane that goes all the way across but then the crack continues towards the front, as well. I can’t tell if there’s any impact- I don’t see any, but it’s hard to tell. I’m in Southern California and I park outside, so the car is in direct sunlight every day. I scheduled an appointment for service for later this week for an hvac issue as well as the rear seatbelt recall, so I’ll have them look at this and will report back.
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That is not good - hopefully it is something they will cover under warranty - have read some people have had experiences where it usually is not covered - like say there do not appear to be any signs of impact. Possibly is heat related and with the heat expansion/pressure which in turn causes it to crack.
 
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Volvo needs to stop scapegoating the owners and take responsibility for this problem. The photos prove that these cracks are the result of some sort of defect -- materials, workmanship or design. Reading these accounts of Volvo's unsatisfactory customer service is very disturbing and makes me think I should cancel my C40 order and stick with BMW, even if it means delaying my EV purchase. I will continue to follow this thread closely while waiting for my C40 to be shipped so please continue to update us on how the company is resolving each of these situations. Thank you.
 
Same thing happened to our XC90 (rear glass crack) and I ended up DIYing the replacement. The writeup is posted here: Rear sunroof glass cracked. Possible DIY replacement?. The XC40 will almost certainly be a little different, but the XC90 front glass was very simple to replace so it may be worth a look if anyone wants to avoid an insurance claim or large labor expense.
 
Well…. Count me in as part of the cracked sunroof crowd. No sign of impact.
Has anyone had any luck with the dealer replacing the glass under warranty?
If anyone has any documentation that might be able to help me out when I visit the dealership please feel free to email me at mberher@dwc.org

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I have the exact same issue and just called the dealership - they said they had someone else in having it repaired today and they think a seagull must have dropped a shell on it to cause the crack! Unbelievable!!! This is clearly a defect in the material and Volvo should cover it under warranty. Next step to call Volvo directly.
 
I recognize it is essentially anecdotal information, but when we scheduled repair of our moonroof with the dealer, they remarked that they had done 20 or so of the same repairs recently. They then went on to regail us with their knowledge of how trucks can throw up rocks in such a manner as to break roof glass.

At some point the numbers might add up to something significant enough for Volvo to act or maybe I am being overly optimisitic.
 
I’ve just returned from my Volvo dealership in Watford (UK) after informing them of my cracked panoramic roof (fine crack from side to side - front panel) 2021 T5 model.
4 technicians and the manger (who ran a ballpoint pen along the crack) diagnosed a stone impact which chipped the ‘flat’ glass which lead to the hairline crack the complete width of the car roof. How a stone could chip a flat roof without me noticing or hearing it is beyond me.
The dealership stated that if they accepted the fault and Volvo subsequently rejected their diagnosis, then the dealership would have to pay for the repair - so they always look really hard to find a fault. Reading the XC40 posts and repeated issues of cracks for so many new cars, how is Volvo ignoring this.
Forcing dealerships to find spurious faults of impact and stone chips has spoilt my Volvo ownership experience - it’s ludicrous!!
So now I have been told if I want to take it further, I have to call Volvo directly as the dealership refused to accept the issue.
Wake up Volvo, the problem won’t suddenly disappear and why should owners have to suffer such issues with brand new cars. A known fault should be dealt with, not thrown back at the paying customer.
Their tag line - Premium, Progressive and award winning???
 
Welp.... this thread interests me as the heat here has been unbearable and it's worrisome. Yesterday at the peak of the heat at a Traffic light, the temperature was reading as high as 120 degrees. At work, it's parked outside with NO coverage whatsoever, so i'm concerned if it's temperature related.

Also, if the "reason" is due to some "pseudo impact" or "stones".....then I'd like to see the % comparison of SAME reported incidents/conclusion by OTHER CARS before I accept an out-of-pocket responsibility with my insurance. To debate the "stone" reason is as good as saying "....btw these "stones" are JUST targeting Volvos across the World...."

If it's pressure related, then I'd better crack the windows open when I'm parked outside at work during such high temperatures, assuming the internal cabin is functioning like a pressure cooker.

HHmmm......
 
We’ve just discovered the same problem in a UK-supplied 2020 model vehicle… Exactly the same circumstances - no known impact, no clear impact damage, crazy/wavy cracks all across the front segment…

Car is going in for inspection in two weeks time - I dare say we’ll get the same “it’s an impact” story….
 
For those of you with this issue, in the US: perhaps it would be worth a shot to report this to the NHTSA?


They say that it needs to be a safety related issue and I believe this could easily be one due to possible glass shattering over vehicle passengers.

Maybe this will get Volvo to finally act on this!

I'm lucky enough to not have this problem yet, but after reading this thread I don't have my hopes up.
 
Has anyone had this problem?
The glass in the panoramic sunroof has a crack across the corner maybe 15 cms long. The car is less than a year old
There is no sign of impact on either side of the glass
Local dealer spoke to Volvo initially who said it will have been caused by an impact. My dealer said they cannot see any evidence of impact and have sent in a report. I am waiting to hear back!!
Well friends, add my 2021 xc40 P8 Recharge to the list. Vehicle is garaged with 5k miles (no impact) and the front panel has 2 huge cracks. Will take to the dealer in CA and report back!
 
Has anyone had this problem?
The glass in the panoramic sunroof has a crack across the corner maybe 15 cms long. The car is less than a year old
There is no sign of impact on either side of the glass
Local dealer spoke to Volvo initially who said it will have been caused by an impact. My dealer said they cannot see any evidence of impact and have sent in a report. I am waiting to hear back!!
Hi yes, had the same problem - Volvo inspection today says crack caused by stone chip! No sign of impact - just severe fracturing around the frame. Taking this to Volvo Exec Office
 
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