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 worst 2021 Buick Envision problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Fuel system7
- Electrical5
- Transmission5
- Engine2
- Tires2
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Fuel system7
- Electrical5
- Transmission5
- Engine2
- Tires2
- Acceleration1
- Airbags1
- Body1
- Brakes1
- Driver assistance1
- Lights1
- Suspension1
- Visibility1
Recalls 2
Exterior lighting: lighting control module: software
- What is wrong
- General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
- Risk
- DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.
- Remedy
- The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1‑888‑988‑7267, Chevrolet customer service at 1‑800‑222‑1020, or Cadillac customer service at 1‑800‑458‑8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V‑827.
Recall number 22V903000 · Recall details
Air bags: SRS malfunction warning lamp/light
- What is wrong
- General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.
- Risk
- The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.
- Remedy
- The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1‑800‑521‑7300, Cadillac customer service at 1‑800‑458‑8006, Chevrolet customer service at 1‑800‑222‑1020, or GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N212338110.
Recall number 21V421000 · Recall details
Technical service bulletins for the 2021 Buick Envision 699
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Special Coverage
- This service bulletin provides information about GM Accessories
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- Unknown or other
- Unknown or other
- PI to help diagnose A/C concern
- Unknown or other
- Pi created to provide GM dealers with information on gathering information for projection issue
- This PI communicates information on a SPS programming issue causing Serial Data Authentication...
- Unknown or other
2021 Buick Envision crash test ratings
Government 5-star crash tests. Higher is safer. Each row is a body style and drivetrain that was tested.
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| Buick Envision SUV AWD | 5 | 5 | 5 | 4 |
| Buick Envision SUV FWD | 5 | 5 | 5 | 4 |
2021 Buick Envision fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | FWD | 24 | 31 | 26 |
| 2.0L 4‑cyl | AWD | 22 | 29 | 25 |
What 2021 Buick Envision owners say
Most recent owner complaints, unedited.
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.
Compare the 2021 Buick Envision
Other model years
Questions about the 2021 Buick Envision
Is the 2021 Buick Envision reliable?
Owners have filed 23 complaints about the 2021 Buick Envision, close to a typical Envision model year.
What is the 2021 Buick Envision year score?
The 2021 Buick Envision scores 75 out of 100 (average). The score compares it with the other model years of the Buick Envision: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2021 Buick Envision?
Fuel and propulsion system, with 7 complaints. Next is electrical (5).
How many recalls does the 2021 Buick Envision have?
2 recalls, covering exterior lighting and air bags.
Is the 2021 Buick Envision safe in a crash?
In government crash tests the 2021 Buick Envision scored 5 out of 5 stars overall, depending on body style and drivetrain (2 versions tested).
What gas mileage does the 2021 Buick Envision get?
Official estimates for the 2021 Buick Envision range from 25 to 26 mpg combined. The most efficient version (2.0L 4-cyl, FWD) gets 24 city and 31 highway.
VIN decoder
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