2021 Buick Envision

got a check engine light on, took to dealer was a code 1098, the part is on back order told that it would not be available until middle of may, this happened to me at the end of march, now am learning that GM issued a recall on that part for their diesel Duramax engine, I think it is a GM wide problem.

The contact owns a 2021 Buick Envision. The contact stated that while his wife was driving at an undisclosed speed on the freeway, the vehicle unintendedly accelerated around a corner, with the floor mat stuck under the pedal. The driver depressed the brake pedal for an extended time, but the vehicle continued accelerating. The driver pressed the park button, which slowed the vehicle, and the driver was able to pull over safely. There were no warning lights illuminated. The vehicle was taken to the local dealer, and the owner was informed about a possible recall. The dealer determined the failure was due to a stuck floor mat and sudden unintended acceleration. The front and rear brakes were replaced along with the floor mat. The floor mat was PN: 84734211. The manufacturer was not contacted. The failure mileage was approximately 37,000. The VIN was not available.

When I start at a low speed it's like it does not know which gear to go in. You push on the gas and it does not move much and then launches forward. It has done this since I purchased it in April 2025 used.When in auto stop and the engine starts up with my foot still on the brake, sometimes it will lurch and buck. Buick dealer did do a transmission fluid flush and it still does the same thing daily.

11/25/25 DRIVING AT A SLOW SPEED, THE TRANSMISION WAS IN DRIVE. THE TRANSMISSION SLIPPED OUT OF DRIVE INTO NEUTRAL. THE CAR STOP. I PUT THE CAR IN DRIVE AND CONTINUED TO THE FINAL DESTINATION. 3 DAYS LATER IT HAPPENED AGAIN. TRANSMITION WENT FROM DRIVE TO 1 ST GEAR. I STOPPED THE CAR. I PUT THE CAR IN DRIVE. i CONTINUED TO FINAL DESTINATION. I FEEL VERY LUCKY THIS ALL HAPPENED WHEN THE CAR WAS GOING 5-10 MPH.

Fuel pump and fuel control module failed. Car will not stay running. Currently at GM dealership. Confirmed and repair cost about $500. No warning lights.

The contact owns a 2021 Buick Envision. The contact stated that while driving at various speeds, the Lane Change Alert with Side Blind Zone Alert malfunctioned. The contact stated that while driving at an undisclosed speed, the side-view mirror illuminated erroneously while driving near a guard rail. Additionally, the contact stated that the side-view mirror had failed to illuminate while there was a vehicle in the blind spot. The vehicle was taken to the dealer several times, but the cause of the failure could not be determined. The contact stated that while the vehicle was parked in the garage, the contact inspected underneath the vehicle and noticed that the bracket in the rear passenger's side bumper fascia had detached and was hanging by the wires. The vehicle was taken to the dealer, where the bracket detachment was related to the failure. The dealer determined that the entire rear bumper fascia, the mounting brackets, and the clips needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure and informed the contact that the dealer needed to contact the manufacturer for assistance. The dealer contacted the manufacturer and was informed that 10 percent of the repair cost would be covered. The failure mileage was approximately 53,000.

The contact owns a 2021 Buick Envision. The contact stated that when the vehicle was started, the air bag warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 80,000.

This has happened about 4-5 times now, car has approximately 17.5k miles. While accelerating attempting to reach speed limit, transmission has slipped out of gear and power to wheels is not happening. Have learned to switch into neutral and then drive and transmission will reorient and grab the appropriate gear and reengage the power to the wheels. This occurrence does not throw off any codes so it appears random. Took it to the dealer and they said it would be two weeks before their transmission guy could take a look at it and try to recreate. Since it is not throwing codes, elected to continue driving since it usually occurs in the 25 - 35 mph range.

The contact owns a 2021 Buick Envision. The contact stated that while stopped in traffic on the highway, while accelerating, the transmission started slipping and the vehicle jerked abnormally before starting to drive normally. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was informed that additional diagnostic testing was needed to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 34,950.

When driving 2021 Buick Envision, the windshield and side windows do not defrost with HVAC set to defrost mode. Service Climate system is displayed on dash. Vehicle was inspected by dealer finding replacement of HVAC case half housing required on 1/22/24 ( a year ago). GM (OEM) has been in contact but has failed to provide a solution after 1 year of trying to obtain a part from their system. This condition results in immediate fogging condition of all windows without warning presenting a visibility safety hazard for the driver and surrounding vehicles. Sorry GM, but a rag to wipe the window is not a good solution. It has been a year with no urgency from GM to remedy the issue. This is deemed a critical function for safety and GM does not take it seriously.

I think it may be either fuel propulsion system or it maybe something electrical. I don’t really know. It is available for inspection at this time as it has been at the car dealer repair shop for about a month. My safety is put at risk because about seven or eight out of 10 times that I attempt to start the vehicle, it will turn over by pushing the button, but will not start. I work until past dark many nights and my vehicle not starting is a big safety issue. The dealer said they reproduced it, but they have not been able to reproduce it again. Again, when I have it, it happens more than half the time. The dealer tells me they are communicating with the Buick engineers as the computer does not show any issues. They have so far not being able to determine the problem. there were no warning lamps or anything like that. It started happening occasionally when it was under warranty, I took it in twice to the dealer repair shop and they both said they could not reproduce the issue at that time. This is the third time I have brought it in and it is just past the end of my warranty.

Electircal System, Interior Lighting: Purchased car used 11/05/24. Interior rear lights come on while driving, once started they will not automatically turn off, and remain on when the vehicle is turned off. This incident is the same as NHTSA ID Number: 11607181, dated: 08/03/24.

Vehicle engine died in the middle of the road. Would turn over but not start. Seemed like fuel system stopped working

The contact owns a 2021 Buick Envision. The contact stated that while operating the vehicle, the contact heard a popping sound coming from the front end of the vehicle, and the vehicle became difficult to steer. The vehicle was taken to the local dealer who determined that the front driver’s and passenger’s side ball joints, and control arms were faulty and needed to be replaced. The vehicle was repaired but the failure reoccurred, and the control arms were replaced a second time. Also, while driving the odor of fuel was present inside the cabin of the vehicle and the vehicle hesitated and jerked while depressing the accelerator pedal. The vehicle was taken to the local dealer who diagnosed that the fuel injector and fuel sensor were faulty. The fuel injector and fuel sensor were replaced but the failure persisted. The cause of the failure was not yet determined. The manufacturer was not contacted. The failure mileage was approximately 24,000.

Interior light keep coming on while driving when I turn it off it comes back on

Not safety, but GM recalled 2021Trailblazers to replace Evap Purge Pumps on vehicles showing check engine light resulting in bad purge pump diagnosis. Why only Trailblazers? I recently had to replace one on my 2021Envision at 37,588 miles after my check engine light came on. Fortunately I bought the extended insurance when I purchased my new vehicle and only paid the $100 deductible. Otherwise it would have cost me $404. If they knew of problems for that year, why not send out letters to other owners of GM vehicles? Thank you. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

When I push on the accelerator the car hesitates and then surges forward. I took the vehicle to the dealership where they recreated the problem however it was not throwing any codes. After examination they determined that the problem was turbo lag. I was advised to continue driving the car as usual until it throws a code or turbo fails. I believe that the vehicle randomly hesitating could leave you stranded in an intersection with oncoming traffic, and when if surges puts you at risk for a rear end collision. When I asked the service rep what will happen if the turbo fails, she said pull over and call on-star. I'll be traveling through the mountains for the holidays, it worries me that if the turbo fails I could be stuck on the side of the road in winter weather.

245/45 R 20 all four tires are pitting and delaminating and the rubber is falling off. These are Continental pro contact 99 h. Mold number s-908480 and mold number s-50879. With a DOT number of 1lf0fbbxy 4820.

Car shut off in middle of the highway. Couldn’t get it to start. Fortunately there was light traffic. Couldn’t get the car in neutral to push on side of road. Had it towed to a shop and it was a faulty fuel pump module. Manufacturer won’t honor warranty.

My vehicle's motor stopped without any warning in the middle lane of a busy freeway. I put the emergency flashers on but when I tried to restart the motor it overrode the flashers, causing a semi truck to just miss hitting me. The transmission went into Park mode and since this car is electronic shifting it would not let me put it in to neutral when the motor is not running . People stopped to help me push the car off the road but we could not get it into neutral. Very DANGEROUS situation to be stuck in a center lane on a busy freeway. ODOT and state police that stopped to help me said that they have never seen anything like this. Towed the car to a Buick-GNC dealer where they have had it for over 2 weeks now. They say that the fuel pump control module failed and they are on back order. My car has 11,200 miles on it.