2017 Buick CascadaRecalls, problems, MPG & safety

“My Buick Cascada is a 2017 model and has 78,000 miles on it. There was a high pitched whistle/squeal type noise I was hearing and was told by the Buick dealership that it is an issue with the PCV valve failing. To replace this it will cost over $2,000 because of the design of where the valve is housed it is part of a much larger piece. In reading commentary on line i discovered that this is a known issue with the Cascada models from various years. Other year models have been granted an extended warranty to cover the repair. I feel that if it is an issue with multiple years then multiple years should be covered under the warranty. I was advised not to drive my car very far with the issue it has with the PCV valve and I rely on it to get to work every day which is an hour drive one way. I am now forced to give up my car or get it repaired and pay the ridiculous amount of money they are charging for a part that should be able to be replaced for much less had it not been part of the valve cover. Thank you”

“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 2017 Buick Cascada. The contact stated while driving 35-45 MPH, the vehicle made an abnormal sound. The check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the knock combustion vibration control system had failed. The dealer determined that the valve cover, the PCV valve, the head gasket, and an unknown part needed to be replaced. The dealer informed the contact that the vehicle was not covered under an unknown Warranty Program. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 21,318.”