Safety Complaint-Sudden Panoramic Sunroof Shattering While Driving Vehicle: 2024 Cadillac Xt6 On October 30, 2026, while driving my 2024 Cadillac Xt6 on a highway from Houston toward Austin, Texas, under normal driving conditions, the panoramic sunroof suddenly shattered with a very loud noise. There was no obvious external impact or object striking the sunroof that I could identify at the time of the incident. The glass shattered into a widespread spiderweb pattern. I reviewed my original dashcam footage. The footage shows the glass fragments being blown toward the rear of the vehicle immediately after the sunroof shattered. As the vehicle continued moving, additional loose glass fragments were carried toward the rear by airflow. Fortunately, the broken glass did not fall into the passenger compartment. However, the sudden failure occurred at highway speed and created a potentially serious safety hazard for the driver, occupants, and other vehicles on the road. I called 911 following the incident. A police officer subsequently contacted me to confirm the situation. However, I was not informed whether a formal police report was filed, and I do not have a police report or case number. I contacted a Cadillac dealership for assistance. The dealership informed me that GM had declined warranty coverage. However, the dealership also confirmed that a detailed inspection had not yet been performed. I have retained the original dashcam footage and photographs documenting the incident. I am concerned that this sudden panoramic sunroof failure may indicate a potential safety-related defect involving the glass, its installation, or the sunroof assembly. I am requesting that the federal safety agency document and review this incident to determine whether similar failures may represent a broader vehicle safety issue.
The worst 2024 Cadillac XT6 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Transmission7
- Electrical6
- Driver assistance5
- Brakes3
- Engine1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Transmission7
- Electrical6
- Driver assistance5
- Brakes3
- Engine1
Recalls 2
Electrical system: instrument cluster/panel
- What is wrong
- General Motors, LLC (GM) is recalling certain 2023-2025 Cadillac XT5 and 2024-2025 Cadillac XT6 vehicles. The instrument panel may not illuminate when the hazard warning lights, high beams, or turn signals are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 101, "Controls and Displays" and 108, "Lamps, Reflective Devices, and Assoc. Equipment."
- Risk
- Without the illuminated reminder, the driver could fail to turn off the lights when no longer needed. Hazard warning lights, high beams, or turn signals that remain activated unintentionally can confuse other drivers, increasing the risk of a crash.
- Remedy
- Dealers will update the instrument panel software, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact Cadillac's customer service at 1‑800‑458‑8006. GM's number for this recall is N242447940.
Recall number 24V459000 · Recall details
Visibility: windshield
- What is wrong
- General Motors, LLC (GM) is recalling certain 2023 GMC Acadia and 2024 Cadilac XT5 and XT6 vehicles. The windshield may have been assembled without the proper urethane sealant required to bond the windshield to the vehicle body.
- Risk
- A windshield that is not properly bonded may detach during a crash and increase the risk of injury.
- Remedy
- Dealers will inspect the windshield and apply primer and urethane sealant. If the windshield is damaged, the dealer will replace it. Repairs will be performed free of charge. Owner notification letters were mailed November 14, 2023. Owners may contact Cadillac customer service at 1‑800‑458‑8006 or GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N232419690.
Recall number 23V681000 · Recall details
Technical service bulletins for the 2024 Cadillac XT6 388
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This service bulletin provides information about GM Accessories
- Unknown or other
- Condition in which the thermal break tabs induce stress into the radiator causing a coolant leak
- Unknown or other
- Unknown or other
- Unknown or other
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- Unknown or other
- Unknown or other
- Unknown or other
2024 Cadillac XT6 crash test ratings
Government 5-star crash tests. Higher is safer. Each row is a body style and drivetrain that was tested.
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| Cadillac XT6 SUV AWD | 5 | 5 | 5 | 4 |
| Cadillac XT6 SUV FWD | 5 | 5 | 5 | 4 |
2024 Cadillac XT6 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | FWD | 21 | 27 | 23 |
| 2.0L 4‑cyl | AWD | 21 | 26 | 23 |
| 3.6L 6‑cyl | FWD | 19 | 26 | 21 |
| 3.6L 6‑cyl | AWD | 18 | 25 | 21 |
What 2024 Cadillac XT6 owners say
Most recent owner complaints, unedited.
See attached document for complaint.
The vehicle has had breaking issues since I purchased it in September 23, 2023. On April 26, 2025 the car completely shut down while driving it for no apparent reason. Took it to the certified Cadillac dealer (see picture). Said, it was fixed. May 11, 2026 started doing it again while driving, turning, backing up or at a light. Breaks keep saying need to be serviced too. Had it towed in to Cadillac dealer they can’t get it to repeat problem or get codes to find out problem. I got Cadillac involved to help. Case number 98248412. Had to pick car up today spoke again with service manager at Cadillac dealer. He said, car has major issues and it’s rearing its ugly head (car is defective). He can’t get the codes because whatever is going on with car it’s not talking to the computer. I’ve been on a major highway and the car just shuts down. I’ve asked Cadillac to repurchase the car because I am afraid of being in a major accident and killed because I never know when the car will shut down. Cadillac told, me to keep driving the car until it showed up again and they would not repurchase it. If I get rear ended on a 4 line highway by a semi truck because the car just shut down myself and family could be killed.
After driving for couple of hours Car Jump like a horse while driving and slow moving since purchased.
Transmission slipping and won’t go in reverse
The car stops abruptly in reverse for no apparent reason when backing up
am experiencing multiple issues with my 2024 Cadillac XT6 that affect drivability and potentially safety: 1.Intermittent Transmission Shift Jerk •The vehicle occasionally exhibits a sudden “jerk” or abrupt shift while accelerating, mostly in 2nd–3rd or 3rd–4th gear. •The issue is intermittent and cannot be consistently reproduced during dealer visits. •The dealer has performed two transmission fluid flushes within one month, but the problem continues. •No diagnostic trouble codes are stored, making it difficult for the dealer to duplicate, but the jerks are noticeable and concerning while driving. 2.Startup and Engine/Transmission Noise •Upon starting the vehicle, I hear unusual noises described as [whining •Noise is also sometimes heard during idle or even briefly after the vehicle is turned off. •These noises occur intermittently, sometimes during cold start or light driving, and may indicate an underlying transmission, engine, or accessory issue.
Transmission suddered. Took to the dealer and they said that there are parts in the transmission that need to be replaced. They recommended not driving the vehicle because there could be complete faliure of the transmission causing the car not to move. They said that parts are on backorder and did not give a timeline of when the parts would be available. They said they did not have a vehicle to drive while we wait.
When trying to back in garage, transmission would not go in reverse at all and can only move forward, at times, the navigation display screen will turn off or freeze before operating normally, and the brakes have been squeeking ever since it was driven off the car lot when purchased new; gm says that's normal.
brakes locking up when backing out of parking spot numerus times, took 20 minutes to back out my 10-foot driveway backup camera saw something that wasnt there brakes keep locking up HARD every foot or so seat kept vibrating front camera was very erratic before this warning of thing that were not there Venice cadillac's service dept answer turn this off in options WOW asked for a fix "there are none just turn it off" my question why is my $75,000 car without a very much needed option that also was a selling point no answer just turn it off
Compare the 2024 Cadillac XT6
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Questions about the 2024 Cadillac XT6
Is the 2024 Cadillac XT6 reliable?
Owners have filed 16 complaints about the 2024 Cadillac XT6, fewer than a typical XT6 model year.
What is the most common problem with the 2024 Cadillac XT6?
Transmission and drivetrain, with 7 complaints. Next is electrical (6).
How many recalls does the 2024 Cadillac XT6 have?
2 recalls, covering electrical system and visibility.
Is the 2024 Cadillac XT6 safe in a crash?
In government crash tests the 2024 Cadillac XT6 scored 5 out of 5 stars overall, depending on body style and drivetrain (2 versions tested).
What gas mileage does the 2024 Cadillac XT6 get?
Official estimates for the 2024 Cadillac XT6 range from 21 to 23 mpg combined. The most efficient version (2.0L 4-cyl, FWD) gets 21 city and 27 highway.
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