P0456 — EVAP system leak detected (very small leak).

Code P0456 is a standard OBD-II diagnostic trouble code: EVAP system leak detected (very small leak).

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0456 across 50 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 P0456 50 patterns

2022 Volkswagen Taos

powertrain — Check Engine Light / Fuel System Diagnostics (Recurring)

2021 Ford Bronco Sport

fuel system — EVAP system small leak

2020 Kia Telluride

engine — Internal engine failure (piston rings, cylinder walls, head gasket)

2020 Kia Sorento

powertrain — Oil burning and emission system codes

2019 BMW X5

engine — Oil pump plastic component fracture

2019 Ford Fusion

powertrain — Evaporative emissions system leak

2019 Ford Edge

engine — Purge solenoid valve failure

2019 Honda Civic

electrical — Evaporative emissions system malfunction

2019 RAM 1500

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

2018 Ford Focus

fuel system — Canister Purge Valve Failure — Stuck Open / Stalling & Loss of Power

2018 Ford Focus

engine — Oil pump drive belt tensioner failure / oil pump belt failure

2018 Ford Escape

brakes — Complete brake failure during driving

2018 Ford Focus

cruise control — Rough cold-start and hesitation with erratic shifting

2018 Jeep Grand Cherokee

electrical — Electrical stall while driving with loss of power steering and brakes

2018 Kia Optima

electrical — Repeated stalling and engine shutdown

2017 Dodge Journey

engine — Engine stalling / loss of power while driving

2017 Ford Escape

engine — Coolant Intrusion into Cylinders with Head Gasket Failure

2017 Ford Focus

fuel system — Canister Purge Valve Failure / Stuck Open

2017 Hyundai Tucson

cruise control — Engine oil consumption and burning

2017 Jeep Grand Cherokee

electrical — Uncontrolled Engine Shutoff While Driving

2017 Toyota RAV4

powertrain — AWD system disengagement tied to evaporative emissions fault

2016 Ford Fiesta

engine — EVAP system malfunction with stalling

2015 Jeep Patriot

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

2015 Volkswagen Passat

electrical — Engine stall with electrical warning lights

2014 Ford Escape

fuel system — Fuel pump failure

2013 Chrysler Town and Country

engine — Fuel System Malfunction (Leak, Pump, Pressure)

2013 Ford Escape

cruise control — EVAP system / canister purge valve solenoid failures

2013 Ford Focus

powertrain — Transmission control module (TCM) and fuel system faults with check engine light

2013 Ford Escape

electrical — Stalling and power loss while driving

2013 Ford Focus

fuel system — Fuel tank expansion/deformation/collapse

2013 Nissan Sentra

engine — CVT transmission slipping, jerking, shuddering

2012 Dodge Durango

electrical — Engine Control Module (ECM) failure secondary to alternator or electrical surge

2012 Dodge Grand Caravan

powertrain — Evaporative System (EVAP) Leak

2012 Ford Focus

engine — Transmission Shudder and Loss of Power During Acceleration

2012 Ford Edge

engine — Fuel system leaks and capless fuel tank defect

2012 Jeep Patriot

cruise control — Limp mode / loss of power on acceleration

2011 Ford Escape

cruise control — Throttle body loss of power / no acceleration response

2011 Ford Fusion

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

2011 Volkswagen Jetta

engine — High-pressure fuel pump (HPFP) failure

2010 Ford Escape

fuel system — Fuel Filler Neck / Fuel Tank Vapor System Leak

2010 Mercury Milan

powertrain — Electronic throttle body failure with sudden power loss

2007 Chrysler PT Cruiser

engine — Fuel filler neck issue (fuel nozzle shutoff)

2007 Mercedes-Benz E-Class

fuel system — Fuel sending unit and seal leaks

2007 Toyota Corolla

fuel system — Fuel-line puncture and rupture

2006 Chrysler Pacifica

suspension — Transmission/drivetrain issues (transmission rebuild required, fuel pump/EVAP leak)

2006 Ford Mustang

fuel system — Erratic fuel gauge reading

2006 Mercedes-Benz E-Class

engine — Fuel Level Sensor and EVAP System Leaks

2006 Toyota 4Runner

suspension — Excessive vibration and handling instability

2006 Volkswagen Passat

fuel system — Fuel pump failure causing engine stall

2005 Jeep Liberty

fuel system — Fuel tank overfill—automatic pump shutoff fails

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 →