2021 Buick Enclave: Problems & Reliability
BEST2021 Buick Enclave: BEST — 26 owner complaints (0.61 per 1,000 sold), 0.6× the Enclave median year; top issue: service brakes (7 complaints).
CarWhere's verdict score for the 2021 is 0.52, where 1.00 is a typical Enclave year once complaints are weighted for severity and spread over time on the road; 0.75 or lower rates best. 50% of its complaints are severe — a crash, fire, injury or a safety-critical system.
Sources: NHTSA owner complaints (ODI), recall campaigns and manufacturer service bulletins, published U.S. sales, CarWhere verified buyer prices · Model years 2015–2026 compared · Updated 2026-11-07 · By CarWhere Research · Methodology
26
NHTSA complaints
0.61
Complaints per 1,000 sold
653
Service bulletins
2
Recall campaigns
Most-reported 2021 Buick Enclave problems
Service brakes leads a spread-out record, named in 27% of complaints.
| Component | Complaints | Share of 2021 complaints |
|---|---|---|
| Service brakes | 7 | 27% |
| Electrical system | 6 | 23% |
| Unknown or other | 4 | 15% |
| Seat belts | 3 | 12% |
| Structure | 3 | 12% |
A complaint can name more than one component, so shares can add up to more than 100%.
2021 Buick Enclave recalls
2 recall campaigns on federal record for the 2021, reported between Jun 24, 2021 and Mar 31, 2022.
2021 Buick Enclave service bulletins
The manufacturer has filed 653 technical service bulletins with NHTSA for the 2021 — close to the 703 of the median Enclave year from 2015 to 2026. Coded bulletins most often cover electrical system (151), engine & cooling (94), powertrain / transmission (75). Bulletins are repair instructions for dealer technicians, not recalls.
The 2021 vs. the year before and after
From the 2020 to the 2021, owner complaints fell by more than half (61 → 26) — an improvement. The 2022 that followed fell 46% (26 → 14), so the 2022 has the lighter record so far.
| Model year | Verdict | Complaints | Bulletins | Recalls | Avg. buyer-paid |
|---|---|---|---|---|---|
| 2020 Enclave | CAUTION | 61 | 752 | 6 | — |
| 2021 (this page) | BEST | 26 | 653 | 2 | — |
| 2022 Enclave | TOO FEW REPORTS | 14 | 618 | 1 | — |
Prices are averages of CarWhere verified buyer transactions (shown when 3+ deals exist for the year). Full year-by-year table: Buick Enclave years to avoid.
What to check on a used 2021 Buick Enclave
Service brakes (7 complaints on the 2021): check pedal feel, pulling and grinding, look at rotor and pad wear, and ask when the brake fluid was last changed.
Electrical system (6 complaints on the 2021): test every light, window, lock, the infotainment screen and the charging system, and have the car scanned for stored fault codes.
Seat belts (3 complaints on the 2021): pull each belt fully, make sure it retracts and latches, and check the belt warning light.
Structure (3 complaints on the 2021): look under the car for rust or damage around the subframe and rockers, open every door and the liftgate, and check panel gaps for signs of repair.
Powertrain / transmission (2 complaints on the 2021): test-drive from cold through every gear and feel for slipping, harsh or delayed shifts and shudder; ask whether the transmission fluid has been serviced.
Recalls: confirm all 2 campaigns above were completed on this VIN.
Nearby Enclave years with a better rating: 2023.
Know what to pay for the right 2021 Buick Enclave — then negotiate it
Years-to-avoid tells you which year. Search live listings to see the target price and what verified buyers actually paid for it.
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FAQ
Is the 2021 Buick Enclave reliable?
2021 Buick Enclave: BEST — 26 owner complaints (0.61 per 1,000 sold), 0.6× the Enclave median year; top issue: service brakes (7 complaints). CarWhere's verdict score for the 2021 is 0.52, where 1.00 is a typical Enclave year once complaints are weighted for severity and spread over time on the road; 0.75 or lower rates best.
What are the most common 2021 Buick Enclave problems?
By NHTSA owner complaints, the most-reported areas on the 2021 Buick Enclave are service brakes (7, 27%), electrical system (6, 23%), unknown or other (4, 15%). The manufacturer has 653 service bulletins on file for this model year.
How many recalls does the 2021 Buick Enclave have?
2 recall campaigns on federal record for the 2021 Buick Enclave, most recently 22V210000 (Mar 31, 2022, air bags); 21V472000 (Jun 24, 2021, air bags). Recall completion is VIN-specific, so check the exact car.
How do I check a specific 2021 Buick Enclave before buying?
Decode the VIN free at carwhere.com/tools/vin-decoder to confirm the build, then run the $9.99 CarWhere Full VIN Report for the exact VIN — recall, complaint, and service-bulletin record for this model year, the original window sticker where the manufacturer publishes one, and a market price check from verified buyers. One-time purchase, no subscription.
Sources & method
Complaint, recall and service-bulletin counts for the 2021 Buick Enclave come from NHTSA's Office of Defects Investigation; the per-1,000 rate divides complaints by published U.S. 2021 calendar-year sales; the verdict is CarWhere’s severity-weighted, time-on-road-adjusted score compared with the model’s own median year. Complaints are owner allegations, not verified defects. Full methodology.