Toyota Prius Trouble Codes, Symptoms & Recalls
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Common check engine codes on the Toyota Prius
- P0420 — Catalyst System Efficiency Below Threshold (Bank 1)
- P0300 — Random/Multiple Cylinder Misfire Detected
- P0171 — System Too Lean (Bank 1)
- P0442 — Evaporative Emission System Small Leak Detected
- P0455 — Evaporative Emission System Large Leak Detected
- P0128 — Coolant Temperature Below Thermostat Regulating Temperature
- P0401 — EGR Insufficient Flow Detected
- P0440 — Evaporative Emission Control System Malfunction
- P0301 — Cylinder 1 Misfire Detected
- P0174 — System Too Lean (Bank 2)
Common Toyota Prius symptoms
- Toyota Prius car shaking when braking
- Toyota Prius brakes squealing when stopping
- Toyota Prius check engine light on
- Toyota Prius car won't start
- Toyota Prius car overheating
- Toyota Prius car loses power when accelerating
- Toyota Prius car running or idling rough
- Toyota Prius white smoke from exhaust
- Toyota Prius blue smoke from exhaust
- Toyota Prius battery light on while driving
- Toyota Prius car pulls to one side
- Toyota Prius car ac not blowing cold
Maintenance & recalls
Toyota Prius maintenance resources · Toyota Prius NHTSA recalls & complaints