Lexus RX Trouble Codes, Symptoms & Recalls
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Common check engine codes on the Lexus RX
- 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 Lexus RX symptoms
- Lexus RX car shaking when braking
- Lexus RX brakes squealing when stopping
- Lexus RX check engine light on
- Lexus RX car won't start
- Lexus RX car overheating
- Lexus RX car loses power when accelerating
- Lexus RX car running or idling rough
- Lexus RX white smoke from exhaust
- Lexus RX blue smoke from exhaust
- Lexus RX battery light on while driving
- Lexus RX car pulls to one side
- Lexus RX car ac not blowing cold
Maintenance & recalls
Lexus RX maintenance resources · Lexus RX NHTSA recalls & complaints