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?

- Blaine, MN, USA

My convertible top is not lining up with the windows. When it rain water on the floor. U don-??t see where it-??s coming from. I just see large amount of water

- Capitol Heights, MD, USA

My back window glass on convertible too is coming unsealed from the convertible top, if I pay to replace the top this has been reported 6 times already, and will happen again. Pointless to pay $3,000 dollars to have my top replaced. The glass is going to end up coming completely unsealed and fly off and hit someone-??s car and cause an accident. My car has low milage and is financed under a reputable Buick dealership. This needs to be recalled immediately! The pictures I submitted are from a week ago, and the glass is now even more separated from the fabric.

- Panama City, FL, USA

The back window is coming away from the fabric top. Had been getting worse for months. I have complained to GM. I was told to take my car to dealership I did that months ago, when I still had warranty. Nothing was done. I have taken it again to dealership because the window is coming out more. I now have to get it fixed and I have to pay a portion of the cost of a new top, since the window cannot be put back properly. I am mad that the dealership would not help when it first started and that mow. I have to pay some now that I am out of warranty.

- Winston Salem, NC, USA

The rear glass window is lifting on the bottom left corner. My husband just noticed it one day. A service bulletin was released by GM in November, 2019 regarding this issue. My insurance won't cover it as it was not caused by an outside force. Safety hazard: If I drive with my windows open and top up, I'm afraid the pressure will cause the window to detach, which would injure any vehicle behind me. This should be a GM recall. The glass can not be replaced without replacing the entire soft top.

- Raynham, MA, USA

The contact owns a 2016 Buick Cascada. While driving approximately 1 mph, the vehicle drove over a curb. When the vehicle was taken to axelrod GMC Buick (parma, oh, 216-661-5060) for an oil change, the technician diagnosed that there was a crack in the frame. The manufacturer was made aware of the failure and sent an investigator to assess the damage. The investigator was unable to determine the cause of the failure. The contact was offered a rental vehicle while the dealer kept the vehicle for investigation. When the contact retrieved the vehicle, she noticed that all parts of the vehicle, including the steering wheel and seats, vibrated. The dealer was unable to explain the cause of the failures and did not test drive the vehicle. The manufacturer was made aware of the failures and stated that the vehicle was performing as expected. The failure recurred and was not repaired. The failure mileage was approximately 6,000.

- Burbank, OH, USA