Chevrolet Impala: which model years draw the most owner complaints?
10,251 complaints filed with NHTSA about the Chevrolet Impala, model years 2000 to 2020. 10 model years stand out for the engine or transmission: 2009 (engine 9.5×); 2000 (engine 9.7×); 2008 (engine 7.4×, transmission 5.7×); 2002 (engine 7.4×). Quietest mature years by complaint count: 2019, 2018, 2016. 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 Impala | 817 | engine 9.7× | 10 | |
| 2001 Impala | 740 | engine 7.6× | 10 | |
| 2002 Impala | 792 | engine 7.4× | 7 | |
| 2003 Impala | 692 | engine 7.5× | 8 | |
| 2004 Impala | 1,074 | — | 7 | |
| 2005 Impala | 609 | — | 4 | |
| 2006 Impala | 524 | engine 4.1×, transmission 6.8× | 2 | |
| 2007 Impala | 626 | engine 4.8×, transmission 5× | 3 | |
| 2008 Impala | 809 | engine 7.4×, transmission 5.7× | 2 | |
| 2009 Impala | 824 | engine 9.5× | 5 | |
| 2010 Impala | 442 | engine 4.4×, transmission 4.2× | 4 | |
| 2011 Impala | 504 | engine 6.3×, transmission 4× | 2 | |
| 2012 Impala | 257 | quiet: 5 of 20 | 3 | |
| 2013 Impala | 272 | quiet: 6 of 20 | 1 | |
| 2014 Impala | 638 | — | 12 | |
| 2015 Impala | 301 | quiet: 7 of 20 | 3 | |
| 2016 ImpalaFEW REPORTS | 111 | quiet: 3 of 20 | 0 | |
| 2017 ImpalaFEW REPORTS | 117 | quiet: 4 of 20 | 0 | |
| 2018 ImpalaFEW REPORTS | 59 | quiet: 2 of 20 | 1 | |
| 2019 ImpalaFEW REPORTS | 28 | quiet: 1 of 20 | 1 | |
| 2020 ImpalaFEW REPORTS | 15 | — | 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: 2000200120022003200420052006200720082009201020112012201320142015