Buick Cascada Complaints

55 consumer complaints on file.

#11688051September 18, 2025
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER, ENGINE AND ENGINE COOLING
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684855September 3, 2025
ENGINE
Camshaft cover recall on exact model car for different year model, recall doesn’t cover this years model, however, I have the same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679907August 11, 2025
FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675525July 23, 2025
VISIBILITY
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672790July 11, 2025
POWER TRAIN
Chirping sound from under hood took to GM dealer, they changed the belt and transitioned and was still chirping. Now say it is pvc/camshaft cover.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11671081July 3, 2025
STRUCTURE
The contact owns a 2019 Buick Cascada. The contact stated that the convertible top rear glass had significantly detached from the top cover material. The vehicle was taken to the dealer, where it was determined that the entire convertible top needed to be replaced. The vehicle was not repaired. The contact related the failure to TSB Number: 17-NA-216 (Convertible Top Back Glass Separation from Top Cover Material). The manufacturer was notified of the failure. The failure mileage was approximately 50,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661133May 15, 2025
STRUCTURE
The contact owns a 2019 Buick Cascada. The contact stated that the rear windshield was separating from the convertible top plastic frame. The contact stated that the rear glass was pushing upward and out of the frame. The contact had called a dealer and discussed the failure and was advised that the manufacturer had issued Technical Service Bulletin: 17-NA-216 for the separation of the rear glass of the convertible top. The contact was advised by the service department that the repair would not be performed by the dealer. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 53,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637586January 22, 2025
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
The contact owns a 2018 Buick Cascada. The contact stated that while operating the vehicle, there was a whistling sound coming from the engine compartment, with the check engine warning light displayed. The vehicle was taken to the local dealer who diagnosed that the intake manifold was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not contacted. The failure mileage was 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633695January 2, 2025
STRUCTURE
The contact owns a 2019 Buick Cascada. The contact stated while driving at an undisclosed speed during a rainstorm, water started entering the vehicle through the rear windshield. The contact stated that the rear windshield was separating from the seal. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the rear window sealant, allowing the rear window to separate from the top material. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin Number: 17-NA-216. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 38,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630157December 11, 2024
SEAT BELTS
The motor is out of the seat belt presenter on the driver's side. It does not present and makes a horrible sound. This part was ordered in July, 2024. I've contacted the dealer and Buick directly to find out when I can expect the part to be replaced. They've told me that the back is on an extended back order. I asked if the part could be replaced with a used part. They told me that because it's a safety-sensitive part, it has to be replaced with a new part. But this part has been on back order for months with no delivery in sight, and they expect me to drive my car like this with this "safety" issue compromised.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607591August 9, 2024
ENGINE
A squealing sound was coming from the top of my engine and I had low/rough idle and it progressed to a low voltage output and check engine lights. I was able to use GM's Special Coverage Adjustment N232395320 Camshaft Cover (for the 2019 Cascada) and Special Coverage Adjustment N192291620 Camshaft Cover Replacement (for the 2016 Cascada) to CONFIRM that I had a broken/cracked PCV. The PCV vent constantly pulled vacuum (was stuck open to atmosphere) and the sound was only relieved by removing the dip stick. I took my car to the Buick Dealership for an official Diagnostic repair order and to contact GM. The dealership did a poor job of communicating the issue but eventually reported that my PCV was leaking. This is a $1800-$2000 repair(I'm outside my warranty period as I'm at 72K miles) that GM only offered $110 to the dealership as cost assistance. The offer does not cover the $170 diagnostic fee. The PCV in the Casada is integrated into the Camshaft cover and requires that then entire cover be replaced for the repair. There is NO part number difference in the Camshaft cover between model years 2016 thru 2019 Cascadas. I believe that the 2017 should be included in the same Special coverage as the 2016 and 2019 model years. This issue has been noted in several Casada forums and is also the same as NHTSA complaint IDs: 11593462, 11587414, 11574318, 11515179. Note: I would like to attach a video of the testing required to confirm the PCV issue per the Special Coverage Adjustments noted above, but it is not in your supported file submissions formats. Please provide me with an email, drop box, etc location and I will forward it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11593462June 10, 2024
ENGINE AND ENGINE COOLING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11587414May 7, 2024
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
The contact owns a 2017 Buick Cascada. The contact stated that while driving at various speeds, there was an abnormal squealing sound coming from the vehicle. There was no warning light illuminated. The vehicle was taken to an independent mechanic where it was discovered that the diaphragm inside the PCV (Positive Crankcase Ventilation) valve had ruptured. The part was replaced by the mechanic. Upon investigation, the contact discovered that the failure was covered under warranty through the manufacturer. The manufacturer was notified of the failure but denied the request for a reimbursement since the vehicle was not serviced at the dealer. The vehicle was repaired. The failure mileage was 45,928.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11582433April 11, 2024
VISIBILITY/WIPER, STRUCTURE:BODY, VISIBILITY:GLASS, SIDE/REAR
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?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580207March 30, 2024
STRUCTURE:BODY, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11574318February 27, 2024
ENGINE
Took 2017 Buick Cascada in for repair following whistling noise and stalling while idle. This vehicle only has 42K miles. The mechanic was concerned this could/should be a recall issue due to the low mileage on the vehicle. On Google searches, I found similar issues were reported and GM extended the warranty on Buick Cascadas for different years. Both the 2016 and 2019 had a Global Warranty for PCV issues and Camshaft covers. "GLOBAL SAFETY FIELD INVESTIGATIONS [XXX] URGENT - DISTRIBUTE IMMEDIATELY Date: February 16, 2023 Subject: [XXX]- Special Coverage Camshaft Cover The mechanic stated, "the built-in PCV system has failed causing a vacuum issue within the engine and requires the entire camshaft cover to need replacement." The mechanic was unable to do the repair and suggested the vehicle be taken to a GM dealership. It is scheduled for repair at McElveeen Buick in Summerville, SC in the next couple of days. The check engine warning light is on and the vehicle has stalled while idling in traffic. There is a whistling noise resembling a worn belt noise in the right front of the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11517691April 18, 2023
VISIBILITY/WIPER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11515179April 3, 2023
ENGINE
I HAVE NOTICED IN A BUICK THREAD THAT I AM NOT THE ONLY ONE WHO HAD A PCV VALVE GO BAD ON 2017 BUICK CASCADA. THE PROBLEM IS BUICK BUILT THIS VALVE INTO THE VALVE COVER,IT CAN NOT BE REPLACED WITHOUT REPLACING THE WHOLE ALUMINUM COVER. THE COVER WAS A SMALL 900.00$ FEE , PLUS ANOTHER 5-600 FOR MECHANIC. SEEMS TO ME THEY HAVE AN ISSUE WITH THE PCV VALVES, SINCE I AM NOT THE ONLY ONE WITH THIS PROBLEM. PCV VALVE IS AN IMPORTANT PART TO EMISSIONS AND THE CAR.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512132March 16, 2023
STRUCTURE:BODY, VISIBILITY/WIPER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11470213June 21, 2022
VISIBILITY/WIPER
Rear windshield is delaminating from the frame on the convertible top.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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