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