P0455 — EVAP system leak detected (large leak / loose gas cap).

Code P0455 is a standard OBD-II diagnostic trouble code: EVAP system leak detected (large leak / loose gas cap).

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0455 across 20 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0455 20 patterns

2019 Honda Civic

electrical — Evaporative emissions system malfunction

2019 RAM 1500

fuel system — High-pressure fuel pump (HPFP) failure

2018 Kia Soul

electrical — Engine oil consumption and sludge buildup

2018 Toyota Camry

engine — Stalling and Loss of Power While Driving

2015 Chevrolet Malibu

engine — Vent solenoid sticking

2015 Dodge Durango

lighting — Racetrack taillight water intrusion and LED failure

2015 Ford Fusion

fuel system — Purge valve failure

2015 Jeep Patriot

powertrain — CVT transmission overheating and limp mode / loss of power

2011 Ford Fusion

powertrain — Throttle body failure causing power loss

2011 Ford Fusion

engine — Electronic Throttle Body (ETB) Failure – Sudden Power Loss

2011 Honda CR-V

powertrain — EVAP emission control system leak

2010 Chevrolet Impala

electrical — Engine power loss and reduced-engine-power message during driving

2010 Dodge Caliber

engine — Hesitation and delayed acceleration response

2010 GMC Sierra

engine — EVAP System Vent Valve Stuck Open

2010 Mercury Milan

engine — Electronic Throttle Body Malfunction – Loss of Power / Stalling

2008 Chevrolet Equinox

engine — Check engine light with gas cap misdiagnosis

2007 Saturn Aura

powertrain — 6T70/6T75 Transmission Wave Plate Failure

2006 Volkswagen Passat

brakes — Brake vacuum hose cracking or failure

2005 Ford Explorer

fuel system — Fuel Gauge Failure—Reads Empty When Tank Is Full

2005 Ford Escape

fuel system — EVAP system malfunction

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →