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2021 Buick Enclave

Gas
Standard Sport Utility Vehicle 2WD
2 EPA-rated configurations
Data refreshed 2026-10-26
B
Safety Signal
85 / 100 from the NHTSA recall record
RecallsNHTSA campaigns 2
Complaintsnone reporting a crash, fire or injury 26
Crash ratingNHTSA overall 5★
Fuel economybest combined, EPA 21 mpg
202720262025202420232022202120202019201820172016

The 2021 Buick Enclave is sold in the U.S. as a gas large SUV with 2 EPA-rated configurations. The most efficient version, the Enclave FWD, is EPA-rated at 21 mpg combined. NHTSA lists 2 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 26 complaints, most often about the service brakes. NHTSA crash-tested it at 5 stars overall.

Buick Enclave — photograph via Wikimedia Commons
Buick Enclave · Photo: HJUdall · CC0 · Wikimedia Commons

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
Enclave FWDGasFWD3.6L 6-cyl182621$3,200
Enclave AWDGasAWD3.6L 6-cyl172520$3,350

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 43202, 43205.

Emissions & certification

Source: EPA emission certificates
ConfigurationSmog ratingEmission standardWhere it can be sold newSmartWay
Enclave AWD, Enclave FWD6 / 10California LEV-III ULEV50 / Federal Tier 3 Bin 50All 50 states (federal, all altitudes); California and states following California standards—

Certified for all fifty states, so it can be registered new anywhere in the U.S.

The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.

Specifications filed with NHTSA

Source: NHTSA vPIC

Dimensions Exterior

Body styleSport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV]
Doors4
GVWR classClass 2E: 6,001 - 7,000 lb (2,722 - 3,175 kg)

Engine Basics

Cylinders6
Displacement3.6 L
Engine configurationV-Shaped

Fuel Economy

FuelGasoline

Seating

Seat rows3
Seating capacity7 seats

Transmission

DrivetrainFWD/Front-Wheel Drive
TransmissionAutomatic
Transmission speeds9

Driver assistance

Standard: Anti-lock brakes, Automatic emergency braking, Backup camera, Blind-spot monitoring, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Pedestrian automatic emergency braking, Rear cross-traffic alert

Optional: Adaptive cruise control

Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Avenir, Essence, Premium). Figures for the trim you are looking at may differ.

Dimensions & weight

Source: Transport Canada
Length204.3 in
Width (body, without mirrors)78.7 in
Height70.1 in
Wheelbase120.9 in
Track, front67.3 in
Track, rear66.9 in
Curb weight4,361–4,614 lb
Weight distribution, front/rear58/42

Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 2 configurations: 4-door SUV AWD, 4-door SUV FWD. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.

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Factory warranty running out?

The 2021 Buick Enclave is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.

What to check before you buy →

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

Recalls (2)

Source: NHTSA recall database
▲high

Air Bags

N212352140
89 vehicles 90% reported repaired
Problem General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Traverse and 2021-2022 Buick Enclave vehicles. The harness connector to the left or right side roof rail air bag may have incompatible electrical terminals, which could prevent the air bags from deploying in a crash. Risk Roof rail air bags that do not deploy as intended increase the risk of injury in a crash. Fix Dealers will replace the harness connector to the roof rail air bags, free of charge. Owner notification letters were mailed on April 29, 2022. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212352140.
Filed with NHTSAOwner letter PDF
NHTSA campaign 22V210000 reported Mar 31, 2022 General Motors, LLC the full filing, and every vehicle covered →
▲high

Air Bags

N212340220
6 vehicles 100% reported repaired
Problem General Motors, LLC (GM) is recalling certain 2021 Chevrolet Traverse and Buick Enclave vehicles. During service by dealers, certain vehicles may have received incorrect air bag calibration software that may affect frontal airbag deployment. Risk Air bags that do not deploy as intended can increase the risk of injury. Fix Dealers will update the air bag calibration software, free of charge. Owner notification letters were mailed on July 29, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Buick customer service at 1-800-521-7300. GM's number for this recall is N212340220.
Filed with NHTSAOwner letter PDF
NHTSA campaign 21V472000 reported Jun 24, 2021 General Motors, LLC the full filing, and every vehicle covered →

These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.

Whether any of this applies to one specific Enclave

A campaign covers a build range, not a model year, so two identical-looking cars from 2021 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Buick publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.

Hear about a recall before the letter does

The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2021 Buick Enclave, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.

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Parts & accessories for the 2021 Buick Enclave

Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.

Find parts for this Enclave →

Owner complaints

Source: NHTSA complaint database
26complaints filed

0 involved a crash · 0 a fire · 0 injuries · 0 deaths reported

6.4 per 10,000 built · Buick reported 40,447 Enclave built (its Early Warning production report to NHTSA)

Filed per year: 2021: 9 · 2022: 2 · 2024: 3 · 2025: 5 · 2026: 7

Most-cited components

Service Brakes 7
Electrical System 6
Unspecified 4
Seat Belts 3
Structure 3
Engine 2

In owners' own words

Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.

The contact owns a 2021 Buick Enclave. The contact stated that while driving at an undisclosed speed with the contact and her daughter inside the vehicle, her daughter's seat belt became extremely tight. The seat belt failed to unlatch, forcing the contact to cut the seat belt to remove her daughter from the seat.
Seat Belts at 90,000 miles Jul 28, 2026 NHTSA owner report · ODI 11753269
The muffler and tail pipe has fallen off 6 times and ive had to get repaired. I believe it is due to the bad torque converter that others have complained about and goggle says that is a likely failure on the buick
Power Train Jun 17, 2026 NHTSA owner report · ODI 11744657
The liftgate of my vehicle began opening on it's own at no apparent interval, but now occurs frequently while waiting for a repair part to come in. This has happened while parked - including in public parking lots (where someone malicious could have entered the vehicle and the closed the liftgate after entering the vehicle - I would have…
Structure Jun 15, 2026 NHTSA owner report · ODI 11744102
About six months ago the tailgate foot sensor failed and has not worked. Since then, the tailgate began randomly opening on its own, mostly when the car is parked and shut off, but as of today(4-28-2026) it started occurring while I'm driving.
Electrical System Apr 28, 2026 NHTSA owner report · ODI 11734364
When driving my car down the street today, it abruptly stopped in the middle of the street and and engine locked up. I could not shift gears. I could not put my car in neutral. I was literally stuck in the middle of the street with a vehicle that gave me no warning of malfunctioning.
Engine Feb 28, 2022 NHTSA owner report · ODI 11454577
Brakes started grinding at 1000 miles. I will filed a complaint with the dealership and hope they record it. Now I have approximately 2100 miles on the car and it continues to sound and feel like my brake pad and rotor on the right front are grinding every time I apply the brakes.
Service Brakes Aug 25, 2021 NHTSA owner report · ODI 11430512

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Reported by Buick itself: 12 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 2 killed, 17 injured, as claimed, not verified — about 30 per 100,000 built. Every Enclave model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
SUV AWD★★★★★★★★★☆★★★★★★★★★☆15%
SUV FWD★★★★★★★★★☆★★★★★★★★★☆17%

NHTSA New Car Assessment Program.

Service bulletins & campaigns

Source: NHTSA manufacturer communications
Extended coverage on file 1 filing by the manufacturer with NHTSA naming this model year

The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every GM warranty extension (33) → · Every warranty extension on file, all makes →

Communicationsfiled with NHTSA 658
Most recentmanufacturer date 2026-09-26
Kindsas classified by NHTSA 651 service bulletins, 3 service campaigns, 2 over-the-air updates

Most often about: Equipment, Engine, Electrical System, Unknown Or Other, Power Train.

  • PIT5698F Service bulletin
    2026-09-26 · Unknown Or Other
  • This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
  • PIP4902W Service bulletin
    2026-09-04 · Unknown Or Other
  • This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
  • PIC6551C Service bulletin
    2026-08-20 · Unknown Or Other
  • This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
  • PIT5099J Service bulletin
    2026-07-21 · Unknown Or Other
  • PI to help diagnose A/C concern
  • PIT5966F Service bulletin
    2026-06-23 · Unknown Or Other
  • This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
  • PIC6423A Service bulletin
    2026-05-11 · Unknown Or Other
  • Pi created to provide GM dealers with information on gathering information for projection issue
  • PIC6551B Service bulletin
    2026-05-11 · Unknown Or Other
  • This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
  • PIT3271Q Service bulletin
    2026-04-01 · Unknown Or Other
  • This preliminary information communicates information about how to determine if a wheel and tires size change is available.

A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.

Diagnostic trouble codes on file

Source: NHTSA manufacturer communications and complaints

Codes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.

CodeWhat it meansMost often filed underWhere it appears
P023F
P023F on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Electrical System · Battery →7 bulletins
P0300
P0300 on Buick →
Misfire detected, but not isolated to one cylinder.Engine · Ignition coils →7 bulletins
P129F
P129F on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Electrical System · Battery →7 bulletins
C056D
C056D on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Parking Brake · Parking brake cable →5 bulletins
B3055
B3055 on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Power Train4 bulletins
B3060
B3060 on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Power Train4 bulletins
B3935
B3935 on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Power Train4 bulletins
P0308
P0308 on Buick →
Cylinder 8 is misfiring.Engine · Ignition coils →4 bulletins
P050D
P050D on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Engine4 bulletins
C056E
C056E on Buick →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Parking Brake · Parking brake cable →3 bulletins
P0442
P0442 on Buick →
A small leak in the evaporative emissions system.Electrical System · Gas cap →3 bulletins
P0455
P0455 on Buick →
A large leak in the evaporative emissions system — often a fuel cap left off.Electrical System · Gas cap →3 bulletins

Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

At the New York inspection station

Source: New York State DMV

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Buick Enclave failed the emissions check on 1.3% of first inspections — lower than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.6% (every 2021 vehicle: 1.5%).

New York inspections 1.3%

failed emissions

1,018 initial inspections of 1,005 vehicles.

MeasureThe 2021 EnclaveEvery 2021 vehicleBehind it
Failed the emissions check1.3%1.9%1,015
Failed the safety inspection1.6%1.5%1,018
Air-bag warning lamp stayed lit0.29%0.19%1,018
Miles driven a year11,17510,343odometer at inspection
Average odometer59,23654,681odometer at inspection

New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2021 vehicle” is every 2021 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).

Common questions about the 2021 Enclave

Source: EPA, NHTSA and manufacturer press kits

Does the 2021 Buick Enclave have any recalls?

NHTSA has posted 2 recall campaigns for the 2021 Buick Enclave. The most serious on file is 22V210000, covering Air Bags. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.

How safe is the 2021 Buick Enclave?

NHTSA gave the 2021 Buick Enclave 5 stars overall in its New Car Assessment Program tests — 4-star frontal crash, 5-star side crash, 4-star rollover. WhichTrim also grades it B (85/100) on its recall record, which is a different question from crash protection.

What is the fuel economy of the 2021 Buick Enclave?

Across the 2 EPA-rated configurations of the 2021 Buick Enclave, the best EPA combined figure is 21 mpg. Figures are the EPA's own, per configuration, and every one is listed above.

What are the dimensions of the 2021 Buick Enclave?

Transport Canada measured it at 204.3 in long, 78.7 in wide (body, without mirrors), 70.1 in tall, on a 120.9 in wheelbase. Curb weight: 4,361–4,614 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.

What do owners complain about on the 2021 Buick Enclave?

Owners have filed 26 complaints with NHTSA about the 2021 Buick Enclave, most often about service brakes, electrical system, unspecified. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.

How clean is the 2021 Buick Enclave?

The EPA smog rating for the 2021 Buick Enclave is 6 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III ULEV50, Federal Tier 3 Bin 50 — which the table above lists per configuration.

Are there service bulletins for the 2021 Buick Enclave?

The manufacturer has filed 658 service bulletins and related communications with NHTSA for the 2021 Buick Enclave, most often covering equipment, engine, electrical system. The most recent is dated 2026-09-26. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.

How does the 2021 Buick Enclave do at state inspection?

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 Buick Enclave failed the emissions check on 1.3% of first inspections — lower than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 1.6% (every 2021 vehicle: 1.5%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.

What we hold, and what an empty row means

Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.

DataHeldSourceWhat it covers — or what empty means
Fuel economy & configurations2 configurationsEPA certification recordsEvery configuration the EPA certified for sale, with its own test figures.
Emission certificates2 configurationsEPA emission certificatesSmog rating, standard and the sales area that decides where the car can be sold new.
Recalls2NHTSA recall campaignsA complete federal register: every campaign covering this model year, with severity and advisory flags.
Owner complaints26NHTSA complaint databaseAlso complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold.
Crash ratings2 testedNHTSA NCAPOnly the configurations NHTSA chose to crash-test, which is never all of them.
Service bulletins658NHTSA manufacturer communicationsEverything the manufacturer told its dealers about a defect or malfunction, short of a recall.
InvestigationsnoneNHTSA Office of Defects InvestigationNo defect investigation has been opened.
Driver-assist crash reportsnoneNHTSA Standing General Order 2021-01No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like.
Specifications filed with NHTSA12 fieldsNHTSA vPIC, decoded from VIN patternsWhat the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder.
Measured dimensions7 fieldsTransport Canada, Canadian Vehicle SpecificationsLength, width, height, wheelbase, track and curb weight, measured on the North American versions.
Trims, pricing & equipmentnoneManufacturer press kitWe have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind.

Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.

JSON for this page · API