2017 Buick Cascada Problems

Pcv failed causing rough idle, etc light and squeezing sound

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.

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.

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.

THE FRONT COLLISION ALERT DOESN'T WORK AT ALL. IT IS SUPPOSED TO LIGHT UP AND MAKE A SOUND TO WARN THAT YOU ARE APPROACHING ANOTHER CAR TO FAST, IT DOESN'T. THE INDICATOR THAT LIGHTS UP GREEN TO SHOW THAT THERE IS A CAR IN FRONT OF YOU SHOULD TURN AMBER IF YOU GET TO CLOSE, IT DOESN'T. THIS IS AN OPTION THAT I BOUGHT AS A SAFETY DEVICE OR SOMETHING TO ASSIST IN MY SAFE DRIVING. I TOOK IT BACK TO THE DEALER AND THE TECH SAID THAT PER THE GM TECHNICAL DOCUMENT THAT IT WORKED AS IT SHOULD, EVEN THOUGH THE SERVICE ADVISOR AND THE TECH AGREED THAT IT DIDN'T WORK AT ALL. I HAVE A COPY OF THE SERVICE MANUAL DOCUMENT, NUMBER 3819903, AND MINE DOESN'T PERFORM AT ALL LIKE THE DOCUMENT SAYS IT SHOULD. I BOUGHT THIS CAR IN PART BECAUSE OF THE SAFETY FEATURE, AS IT STATES ON THE NEW CAR STICKER.

The component is the PCV and manifold. Cracks develop in the PCV pressure regulator and manifold creating a situation where excess air was drawn into the engine intake. This caused the engine to run rough and unpredictable. This is a known defect and the 2016 model with the same engine was recalled. The recall, N192291620 only covered the 2016 however the 2017 has the same engine and experienced the same problem. The car was brought to the dealer and they confirmed the problem. The dealer said the only way to repair was to replace the parts, cost for repair approx $2300.