Buick Enclave shudder problems

Filed Oct 21, 2026 · Electrical, Fuel system · OH

The transmission hesitates and momentarily loses propulsion when accelerating out a low speed right hand turn, creating a risk of a rear - end collision. It also shudders at low speeds when accelerating up hill, or when passing vehicles on the highway. After the transmission has reached operating temperature and has been driven for a while, it starts to shift harsh and erratically in the lower gears, at lower speeds. There is a service bulletin out for this issue on my vehicle and the first step of the bulletin was performed and has failed. It has been in the shop several times for this intermittent and ongoing issue. The service bulletin # is: 23-NA-072. I have repair invoices for each time it was in the shop. It is currently back in the shop and has been for almost 2 weeks. The problem was reproduced the first time at the time of the initial start of repairs, but they haven't duplicated it since. There has never been any warning lights, messages or codes that have appeared in my vehicle when this issue arises. The issue first appeared within 4 days of me purchasing it in July of this year, 2026 and was communicated promptly.

Filed Oct 18, 2026 · Driver assistance, Fuel system · MD

I am the original owner of this Buick Enclave Avenir. I have had two near accident occurences when the car started foring the breaks while I was accellarating on the highway and was not behind another vehicle. The car behind me nearly rerended me. On 10/17/26, my purge valve was replaced for the third time, making this the fourth purge valve the car has had. After getting gas, the car will not start, which is an indicator the part has gone bad and needs to be replaced. In June of 2025 I took my car to Anderson Buick over concerns while accellerating. They confirmed my transmission needed to be replaced. Our family shop suggested waiting until the end of summer since I wouldnt be driving daily and the replacement would cost nearly 10k. It could only be ordered through GM, making the part substantially higher in cost. When summer break ended and I needed to use my car daily we could not take the car to the dealer or our family shop because the part was no longer available. We could not get a clear time frame of when the part would be in stock, if at all. We had the transmission rebuilt with 166k miles. Nearly 4 months later the trasmission started to shudder again. We took it back to the same shop for repairs becuase it was under warranty. Nearly four months later, the issue began again. The shop said there is nothing I can do to stop it from happening, that the part is deffective and GM knows. I have opened a claim with GM and expect nothing will happen, but it is apparent that the transmission issues are rampant with this vehicle, as evidenced by the complaints here and the droves of complaints on reddit forums.

Filed Oct 11, 2026 · Electrical, Transmission · KY

alternator failed approximately 2½ years earlier, and the alternator and battery were replaced. another alternator and battery installed the following year. * A pulley bolt broke while I was driving and was replaced. * I subsequently had problems with the serpentine belt squealing and producing a burning-rubber smell, and the belt was replaced. (Or so I thought.) The burning didnt go away, neither did the belt squealing. After the belt installation, the battery light came on. correcting the belt restored charging to approximately 13.9 volts. Despite that, an intermittent squeak or squeal when taking off continued. Next, A static-like sound from the radio with the Dashboard lights becoming extremely bright. And car stopping in the middle of the road. A really horrible burning-rubber smell. I turned the car off and then tried to start it again, and the symptoms then returning to normal. But the battery was running very low voltage. 11-12v. Everything went back to normal the next day. No check engine light had come on. A check-engine light and intermittent codes did appeare and disappear every so often. codes P0113, P00F4, P2229, and P0430 , and an EVAP-line issue at another time. All would cut back off. Then came the final issue. The transmission “banging into gear” or making a hard thunk when engaging.Also transmission-fluid leakage and occasional shuddering. The check-engine light was off during these later symptoms. Through my research, all of these issues were related to a particular transmission issue through the electrical system. The faulty electrical has caused many issues leading to this transmission issue. That have put me and my children in dangerous situations in the middle of the road multiple times.

Filed Aug 9, 2026 · Transmission · SC

The problematic 9 speed transmission failed at 72,000 miles on [XXX]. GM required a flush due to the significant shudder problems in the transmissions. This was performed on this vehicle at 32,000 miles. GM knows the is issues. The car brought to Gerald Jones GM in Graniteville, SC and GM/Buick customer service was contacted 5/22/26 and after. The transmission failed when traveling on busy highway in Aiken, SC on [XXX]. The money spent for these cars with failed transmission design/construction and the safety risk to all traffic must be addressed by the federal safety agency. GM customer is horrific in there determination to cover up this colossal issue and safety risk. No one holds them accountable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 4, 2026 · Transmission · 80,000 miles · FL

The contact owns a 2019 Buick Enclave. The contact stated that while driving at 30 to 40 MPH, the vehicle was shuddering. The vehicle was hard to shift. The TPMS was illuminated. The contact indicated the failure was related to the federal safety agency Campaign Number: 20V668000 (Power Train). The local dealer was contacted, who informed about the diagnostic fees. The contact called another local dealer, Starling Buick GMC Stuart Parts, and Starling Buick GMC Stuart Service, at 2445 SE Federal Hwy, Stuart, FL 34994, but the vehicle was not diagnosed or repaired. The vehicle was taken to a transmission center, which confirmed the failure was due to the torque converter. The manufacturer was contacted, who confirmed there was no recall or warranty coverage. The failure mileage was approximately 80,000.

Filed Mar 2, 2026 · Transmission · MI

My wife's 2025 Buick Enclave with less than 10,000 miles (around 9,800) stranded us on the highway. Transmission was shuddering and felt like we were hitting rumble straps on acceleration. Then, we couldn't go over 18 mph, then it just stopped. Couldn't even pull off to the side of the road because the electronics wouldn't let the vehicle go into neutral to allow us to push it onto the shoulder. Eventually we got it off the Interstate to a residential area. When tow truck arrived, they couldn't get it into neutral and had to drag it onto the wrecker with generous amounts of WD-40. That can't be good for the vehicle. The vehicle is at Randy Wise Buick in Fenton, Michigan. We were lucky not to have been hit on the Interstate. Biggest worry is not the transmission problem but that we couldn't even push it off the roadway.

Filed Oct 28, 2025 · Fuel system, Transmission · WA

The vehicle began shuddering and losing power during normal driving. The issue occurs at various speeds, especially between 35–60 mph, and feels as though the car is slipping or will stall. A certified service center diagnosed a failing torque converter, which is part of the transmission/power train. The repair estimate was several thousand dollars. This failure poses a safety risk because the vehicle can suddenly lose acceleration or struggle to move in traffic. The service center confirmed the defect but stated there is no recall or assistance from Buick or GM. I have contacted Buick Customer Care and GM Executive offices with no response. The vehicle remains unsafe to drive.

Filed Aug 2, 2024 · Engine, Transmission · VA

Check engine light illuminated due to transmission clutch not being adequate in manufacturing. Transmission causes motor to shudder due to clutches slipping. Whether in automatic or manual, when accelerating in low RPM, the entire car begins to shudder instead of downshifting. Transmission has been replaced twice, with no corrections. Happens every time the car is driven.

Filed Aug 16, 2023 · Transmission · OH · crash

GM has known about the issues with their transmission in the 2014 -2017 Buick Enclave models. They were found under the federal safety agency Technical Service Bulletin: 18-NA-358 dated October 2020. I have reported this problem to GM, with the information that they requested. The issue here is that the manufacturer currently has a class-action lawsuit filed against it and will have another if they refuse to acknowledge the failures of their transmission in this vehicle. The following expert from the TSB states the following: Some customers may comment that the vehicle may have a severe launch shudder in 1st gear from a stop, or while driving along when in 4th gear, or during the 2-3 upshift or 3-2 downshift. Some customers may also comment on one or more of the following conditions: • Flare • Slide/bump • Slip • Harshshift The problem here is that with the advanced knowledge they had, they knowingly and willingly refused to issue a recall on these vehicles, which has severe outcomes for owners. My wife, who was driving the Enclave was nearly rear-ended at highway speeds when the vehicles behind her were in proximity to her slowed vehicle. The vehicle began to shudder and again when she began driving when the traffic moved. The transmission slips from gears and I verified this myself taking a test drive if the vehicle. This could have led to serious injury or death to my wife! GM refuses to provide any relief from this issue, nor do they wish to accept any amount of responsibility. My question is this, how can GM a take any part in a recall of a major safety component as the airbag system of a vehicle, regardless of mileage, yet they are not held to account for one of the largest components of a vehicle to get out of a hazardous situation when stopped or accelerating? I am asking the federal safety agency to find GM sat fault for producing inferior transmissions in the 2014-2017 Buick Enclave and provided deeply discounted pricing or free remediation as a recall for these vehicles.

Filed May 3, 2023 · Transmission · NJ

When driving the vehicle and going from 2rd to 3rd gear (approximately 20-30mph and 2000 rpm) the vehicle will shudder and shake. The problem is consistent. When driving the vehicle, the shakiness of the vehicle slows down acceleration and causes the car to swerve a little. No warning lights come on when this happens. The car has been checked by my mechanic who I have been using for over 30 years.