Chevrolet Blazer: which model years draw the most owner complaints?
2,078 complaints filed with NHTSA about the Chevrolet Blazer, model years 2000 to 2026. 4 model years stand out for the engine or transmission: 2000 (transmission 7×); 2020 (engine 5.2×, transmission 6.3×); 2019 (transmission 5.3×); 2021 (engine 3.3×). Quietest mature years by complaint count: 2004, 2003. Counts of unverified owner reports, compared only with other years of the same model; not failure rates.
Complaints by model year
| MODEL YEAR | COMPLAINTS | VS OTHER YEARS | STANDS OUT | RECALLS |
|---|---|---|---|---|
| 2000 Blazer | 588 | transmission 7× | 4 | |
| 2001 Blazer | 325 | — | 3 | |
| 2002 Blazer | 246 | — | 2 | |
| 2003 BlazerFEW REPORTS | 77 | quiet: 2 of 6 | 1 | |
| 2004 BlazerFEW REPORTS | 50 | quiet: 1 of 6 | 1 | |
| 2005 BlazerFEW REPORTS | 15 | — | 0 | |
| 2006 BlazerFEW REPORTS | 19 | — | 0 | |
| 2007 BlazerFEW REPORTS | 9 | — | 0 | |
| 2008 BlazerFEW REPORTS | 5 | — | 0 | |
| 2019 Blazer | 190 | transmission 5.3× | 2 | |
| 2020 Blazer | 222 | engine 5.2×, transmission 6.3× | 3 | |
| 2021 BlazerFEW REPORTS | 142 | engine 3.3× | 1 | |
| 2022 BlazerFEW REPORTS | 55 | — | 1 | |
| 2023 BlazerFEW REPORTS | 44 | — | 2 | |
| 2024 BlazerFEW REPORTS | 55 | — | 1 | |
| 2025 BlazerFEW REPORTS | 35 | — | 1 | |
| 2026 BlazerFEW REPORTS | 1 | — | 0 |
"Stands out" = 40 or more complaints naming that system and at least twice the model's quiet (lower-quartile) year, or twice the share seen across every vehicle of that model year. Newer years have had less time on the road. "Quiet" ranks only years with 7+ years on the road and 20+ complaints. NHTSA data through November 2026.
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Source: NHTSA public complaints, recalls, service bulletin and investigation databases, data received through November 2026. Complaints are unverified reports from owners, not failure rates: sales volumes are unknown, so a model year is only compared with other years of the same model. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Year pages: 20002001200220192020