2016 Buick Cascada Engine problems

The contact owns a 2016 Buick Cascada. The contact stated that while driving at various speeds, the vehicle shuddered with an abnormal whistling sound coming from the vehicle. The vehicle was taken to a local independent mechanic, where it was diagnosed and determined that the PCV valve needed to be replaced. Two local dealers were contacted; however, the contact was informed that an unknown Buick Special warranty coverage had expired. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 38,000.

After owning for a year, it started idling very rough. Took it to a shop and there was a GM Service Bulletin issued on these cars N192291620 that expired on 6/2026. They would not reimburse me as it expired and car was repaired by a third party. We had only put 500 miles on it since purchasing. It was the Valve Cover Gasket. As we are on a fixed income with a car under 50k miles, this was a big hit for us.

The contact owns a 2016 Buick Cascada. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal squealing sound. The vehicle was subsequently taken to the dealer, where it was diagnosed with a PCV valve failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 19,000.

See attached document for complaint.

Tl* the contact owns a 2016 buick cascada. While driving various speeds, the vehicle suddenly decelerated and/or shut completely off. The vehicle was returned to ed morris auto blvd (10133 us hwy 19, port richie, fl) on fifteen separate occasions for the same failure. During the service visits, the battery and turbo charger were replaced, but the failures continued. The manufacturer was notified of the failures. The failure mileage was 5,000. The vin was invalid.

Tl* 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....