Sunroof failure or glass breakage on the 2015 Buick Regal
Only 3 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When sunroof failure or glass breakage gets reported
There are 3 reports of sunroof failure or glass breakage on the 2015 Buick Regal, 3 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 78,000 miles. It is the 5th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 25,000 miles | — | — |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $700–$4,500 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure, every year of the Buick Regal
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Sunroof exploded I was driving down the road I heard a very large pop I looked under the cover of the sunroof and there was a large hole right in the middle. Glass fell through when I opened up the cover. Nothing hit it there were no cracks in it exploded for no reason.
While I was driving all the dashboard lights want out completely, the car didn't stop running. I got home and tried to get into the car two hours later and the doors would not open with the remote,so I use the key to enter the car, close the door and the alarm want off and the doors locked, I pressed down on the break and push in on the start button, the panel lite up said that the remote dose not match the car, I tried several ways to open the car it didn't do anything I was locked in the car for 30 minutes, the sunroof window was open a little it was 88 degrees outside I had to kick the the sunroof window out to get out of the car. The car is now at ferguson brick in tulsa as of right now the car started, they haven't found anything wrong I believed there is something wrong if they drive the car and the lights don't black out or it start when they have they are going to send that car back home in the same condition, this is a very serous issue I could have dead in that car with no air.
While I was driving all the dashboard lights want out completely, the car didn't stop running. I got home and tried to get into the car two hours later and the doors would not open with the remote,so I use the key to enter the car, close the door and the alarm want off and the doors locked, I pressed down on the break and push in on the start button, the panel lite up said that the remote dose not match the car, I tried several ways to open the car it didn't do anything I was locked in the car for 30 minutes, the sunroof window was open a little it was 88 degrees outside I had to kick the the sunroof window out to get out of the car. The car is now at ferguson brick in tulsa as of right now the car started, they haven't found anything wrong I believed there is something wrong if they drive the car and the lights don't black out or it start when they have they are going to send that car back home in the same condition, this is a very serous issue I could have dead in that car with no air.
Also reported on the 2015 Buick Regal
Headlight failure or clouding
Other engine problem
Excessive oil consumption
Misfire or rough idle
Other body or interior problem
Other electrical problem
How far this goes
This page is kept out of search results because 3 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 3 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does sunroof failure or glass breakage happen on the 2015 Buick Regal?
Across 3 owner reports that included an odometer reading, half were filed by 25,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is sunroof failure or glass breakage on the 2015 Buick Regal?
3 reports have been filed with NHTSA, about 0.1 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed