Last updated: 2026-07-25
Most Reliable Buick Models — Ranked in 2026
We ranked every Buick model and year in our database by reliability score. The average Buick scores 77/100 across all models and years. The 2025 Buick Envision is the most reliable Buick with a score of 82/100.
Buick Reliability Rankings
| # | Vehicle | Best Year | Score | Rating | Recalls | Complaints / 10k | Maint. Rating | Est. Repair Cost |
|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Buick Envision | 2025 | 82/100 | Excellent | 0 | — | 3.5 | $573/yr |
| 2 | 2026 Buick Envista | 2026 | 82/100 | Excellent | 0 | — | 3.5 | |
| 3 | 2026 Buick Encore GX | 2026 | 82/100 | Excellent | 0 | — | 3.5 | |
| 4 | 2026 Buick Enclave | 2026 | 81/100 | Excellent | 0 | 0.0 | 3.5 | |
| 5 | 2018 Buick Encore | 2018 | 80/100 | Excellent | 0 | 7.7 | 4 | $466/yr |
| 6 | 2021 Buick Encore | 2021 | 80/100 | Excellent | 0 | 4.5 | 4 | $466/yr |
| 7 | 2022 Buick Encore | 2022 | 80/100 | Excellent | 0 | 5.7 | 4 | $466/yr |
| 8 | 2025 Buick Envista | 2025 | 80/100 | Excellent | 0 | 4.6 | 3.5 | |
| 9 | 2025 Buick Encore GX | 2025 | 79/100 | Good | 0 | 2.4 | 3.5 | |
| 10 | 2023 Buick Encore GX | 2023 | 79/100 | Good | 0 | 3.6 | 3.5 | |
| 11 | 2023 Buick Enclave | 2023 | 79/100 | Good | 0 | 4.3 | 3.5 | |
| 12 | 2020 Buick Envision | 2020 | 78/100 | Good | 0 | 2.9 | 3.5 | $573/yr |
| 13 | 2018 Buick Envision | 2018 | 78/100 | Good | 0 | 4.3 | 3.5 | $573/yr |
| 14 | 2019 Buick Envision | 2019 | 78/100 | Good | 0 | 6.9 | 3.5 | $573/yr |
| 15 | 2026 Buick Envision | 2026 | 77/100 | Good | 1 | — | 3.5 | $573/yr |
| 16 | 2024 Buick Encore GX | 2024 | 77/100 | Good | 1 | 4.6 | 3.5 | |
| 17 | 2024 Buick Enclave | 2024 | 77/100 | Good | 0 | 2.7 | 3.5 | |
| 18 | 2025 Buick Enclave | 2025 | 77/100 | Good | 0 | 10.4 | 3.5 | |
| 19 | 2020 Buick Encore | 2020 | 77/100 | Good | 2 | 4.3 | 4 | $466/yr |
| 20 | 2019 Buick Lacrosse | 2019 | 76/100 | Good | 2 | 8.3 | 4 | $569/yr |
| 21 | 2024 Buick Envision | 2024 | 76/100 | Good | 1 | 2.1 | 3.5 | $573/yr |
| 22 | 2019 Buick Encore | 2019 | 76/100 | Good | 2 | 8.0 | 4 | $466/yr |
| 23 | 2023 Buick Envision | 2023 | 76/100 | Good | 1 | 5.9 | 3.5 | $573/yr |
| 24 | 2022 Buick Enclave | 2022 | 76/100 | Good | 1 | 3.9 | 3.5 | |
| 25 | 2018 Buick Enclave | 2018 | 75/100 | Good | 0 | 12.1 | 3.5 | |
| 26 | 2019 Buick Enclave | 2019 | 75/100 | Good | 1 | 7.4 | 3.5 | |
| 27 | 2021 Buick Enclave | 2021 | 75/100 | Good | 2 | 5.0 | 3.5 | |
| 28 | 2022 Buick Envision | 2022 | 75/100 | Good | 1 | 6.4 | 3.5 | $573/yr |
| 29 | 2020 Buick Regal | 2020 | 75/100 | Good | 2 | 8.1 | 4 | $563/yr |
| 30 | 2018 Buick Lacrosse | 2018 | 75/100 | Good | 3 | 7.7 | 4 | $569/yr |
| 31 | 2024 Buick Envista | 2024 | 75/100 | Good | 1 | 9.4 | 3.5 | |
| 32 | 2018 Buick Regal | 2018 | 74/100 | Good | 3 | 13.5 | 4 | $563/yr |
| 33 | 2021 Buick Encore GX | 2021 | 74/100 | Good | 2 | 6.9 | 3.5 | |
| 34 | 2022 Buick Encore GX | 2022 | 74/100 | Good | 1 | 8.7 | 3.5 | |
| 35 | 2021 Buick Envision | 2021 | 74/100 | Good | 2 | 5.0 | 3.5 | $573/yr |
| 36 | 2019 Buick Regal | 2019 | 73/100 | Good | 3 | 17.4 | 4 | $563/yr |
| 37 | 2020 Buick Encore GX | 2020 | 70/100 | Good | 2 | 15.6 | 3.5 | |
| 38 | 2020 Buick Enclave | 2020 | 68/100 | Good | 6 | 12.5 | 3.5 |
Model Summaries
Buick Enclave
Data indicates that the Buick Enclave, with an average reliability score of 76/100 over the years 2018 to 2026, falls into the "Good" category on the Auto Reliability Index. Common issues reported by owners include problems with the power train, electrical systems, and service brakes, particularly in earlier model years. The 2026 model shows a marked improvement with a score of 81/100 and no reported complaints, suggesting enhanced reliability in the latest generation.
Average score: 76/100. Best year: 2026 (81/100). 9 years tracked.
Buick Encore
The Buick Encore, covering model years 2018 to 2022, holds an average reliability score of 79 out of 100, indicating a good reliability reputation. Common issues reported by owners include problems with the engine and power train, particularly turbocharger failures, with an estimated annual repair cost aligning with the subcompact SUV average at $466. This vehicle is suited for those who prioritize a balance of cost and reliability, though potential buyers should note recurring concerns such as engine and power train issues across multiple years.
Average score: 79/100. Best year: 2018 (80/100). 5 years tracked.
Buick Encore GX
The Buick Encore GX, covering model years 2020 to 2026, shows an average reliability score of 76 out of 100, indicating a generally good reliability reputation. Common issues reported by owners include power train and electrical system problems, particularly in earlier models, with the "Shift to Park" error being a notable concern. Repair costs are rated at 3.5 out of 5, and while complaint rates have decreased over the years, potential buyers should consider these factors when evaluating the vehicle's suitability for their needs.
Average score: 76/100. Best year: 2026 (82/100). 7 years tracked.
Buick Envision
The Buick Envision, covering model years 2018 to 2026, maintains an average reliability score of 77/100, categorized as "Good" on the Auto Reliability Index. Owners frequently report issues with the electrical system, power train, and service brakes, with complaint rates peaking at 6.9 per 10,000 vehicles sold in 2019. With an estimated annual repair cost of $573, the Envision is best suited for those who prioritize a balance between reliability and maintenance expenses, while being mindful of the common problem areas highlighted in owner reports.
Average score: 77/100. Best year: 2025 (82/100). 9 years tracked.
Buick Envista
The Buick Envista, spanning model years 2024 to 2026, scores an average reliability rating of 79/100, indicating a generally good performance with notable improvements over time. Common issues reported by owners include electrical system malfunctions, with earlier models experiencing more frequent complaints, and a decline in issues by 2026. Repair costs are rated at 3.5/5, suggesting moderate expenses for maintenance, making it suitable for buyers seeking a balance between reliability and cost.
Average score: 79/100. Best year: 2026 (82/100). 3 years tracked.
Buick Lacrosse
The Buick LaCrosse, covering model years 2018 and 2019, holds an average reliability score of 76/100, categorized as good, with annual repair costs averaging $569, slightly above the midsize car segment's $526. Data indicates common issues in the 2018 model with the engine, electrical system, and power train, while the 2019 model frequently sees problems related to the e-shift mechanism and engine. With a reliability rating of 4/5 and a complaint rate of 7.7 to 8.3 per 10,000 sold, the LaCrosse is best suited for buyers aware of these specific concerns and looking for a midsize vehicle with a history of moderate reliability.
Average score: 76/100. Best year: 2019 (76/100). 2 years tracked.
Buick Regal
For the model years 2018 to 2020, the Buick Regal has an average reliability score of 74 out of 100, indicating a generally good performance with some noted issues. Common problems reported by owners include service brakes and electrical system concerns, particularly in the 2018 and 2019 models, with varying severity. With an estimated annual repair cost of $563, slightly above the midsize car average, the Regal may be best suited for those who prioritize style and comfort but are prepared for occasional maintenance needs.
Average score: 74/100. Best year: 2020 (75/100). 3 years tracked.
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Frequently Asked Questions
- What is the most reliable Buick?
- Based on our data, the 2025 Buick Envision is the most reliable Buick with a score of 82/100 ("Excellent"). It has 0 recalls and 7 owner complaints.
- Are Buick vehicles reliable?
- Buick vehicles have an average reliability score of 77/100 across all models and years in our database. Individual models vary, so checking the specific model year you're considering is important.
- Which Buick models should I avoid?
- Based on our data, these Buick model-years are statistical outliers within their lines: 2020 Encore GX (70/100), 2020 Enclave (68/100). These have higher recall counts and complaint volumes relative to their siblings.
- How do Buick repair costs compare?
- Repair costs vary by model. Check the detailed rankings table above for estimated annual repair costs for each Buick model year.
How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent— Top-tier reliability, minimal issues
- 60–79: Good— Reliable with some minor concerns
- 40–59: Mixed— Notable issues, research before buying
- 0–39: Risky— Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases via vehicles.dev. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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