Pontiac Bonneville: which model years draw the most owner complaints?
537 complaints filed with NHTSA about the Pontiac Bonneville, model years 2000 to 2005. No model year stands out for the engine or transmission against the others. Quietest mature years by complaint count: 2005, 2004. 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 Bonneville | 212 | — | 2 | |
| 2001 BonnevilleFEW REPORTS | 129 | — | 0 | |
| 2002 BonnevilleFEW REPORTS | 89 | — | 2 | |
| 2003 BonnevilleFEW REPORTS | 54 | — | 2 | |
| 2004 BonnevilleFEW REPORTS | 28 | quiet: 2 of 6 | 0 | |
| 2005 BonnevilleFEW REPORTS | 25 | quiet: 1 of 6 | 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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Other Pontiac models
Pontiac Aztek · Pontiac G5 · Pontiac G6 · Pontiac G8 · Pontiac GTO · Pontiac Grand Am · Pontiac Grand Prix · Pontiac Montana · Pontiac Solstice · Pontiac Sunfire · Pontiac Torrent · Pontiac Vibe. All makes and models.
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: 2000