Buick Cascada Visibility problems by year

I am reporting the malfunction and separation of the rear window from the cover. This is a safety issue as there is the potential for it to come off while driving and possibly causing an accident. It started small, but has grown to almost 12 inches. I have not yet found anyone who has the capacity (or desire) to fix this. And those that actually want to take on such a project are charging over 5,000! Please help!

The rear window of this car has separated and when I contacted the manufacturer they indicated a service bulletin was issued but they are not liable for the repair. The window has become more and more separated and I'm using glue to hold it on but it's becoming undrivable due to the risk of it separating while on the road. While this has not yet caused an accident, I believe this is one waiting to happen as many other owners of this vehicle are reporting the same issue. If this would fully separate while on a highway the consequences could be dangerous. This is a chronic manufacturing defect. Buick has indicated the repair would cost between $3,000 and $5,000, which is not possible.

The contact owns a 2016 Buick Cascada. The contact stated that when his wife entered the vehicle, the rear passenger's side window automatically rolled down when the vehicle was started. The contact was unable to confirm if any warning lights were illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 16V844000 (Visibility). The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 80,000.

The rear window on the Cascada is known to separate from the convertible top material, likely due to an insufficient amount of primer used during the assembly process, which creates stress points allowing the material to separate from the glass. Once this bond has started to fail, it is eventually going to lead to the glass completely falling off the car. It is likely that the glass separating could render the rear defrost inoperable, too, decreasing visibility. NHTSA bulletin 17-NA-216 describes this problem; why was no recall ever issued?

17-NA-216 was originally issued in in 2017 updated in 2019 to include 2018 model. Back windshield detaches from canvas/folding top. Was concerned primarily about safety of my child who drives car that windshield would completely fly off when driving. I replaced the folding top cover per bulletin. GM refused to reimburse stating not recalled since not safety issue. I disagree. Damage it could cause if flys off while driving could cause an accident for driver or other cars on the road who are hit with window or avoid being hit.

Convertible Top Back glass Separation from Top Cover Material. The back glass window separated from the canvas roof, it started in the bottom corner of the glass window.

Rear windshield is delaminating from the frame on the convertible top.

The contact owns a 2016 Buick Cascada. The contact stated that the rear windshield glass had begun to separate from the convertible top headliner. The contact attempted to repair the failure by using epoxy glue, but the failure returned over time. The contact took the vehicle to a dealer where she was provided a quote to replace the top. Upon investigation, the contact discovered a service bulletin Manufacturer Communication Number: 17NA216 which she linked to the failure. The manufacturer was notified of the failure but provided no assistance. The vehicle was not repaired. The failure mileage was approximately 80,000.

The contact owns a 2016 Buick Cascada. The contact stated that the rear windshield separated from the convertible top making it difficult to secure the top of the vehicle. The contact took the vehicle to the dealer who stated that the window and top of the vehicle needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure. The contact was informed that the Vin was not under recall. The approximate failure mileage was 18,000.