Code result
P0457
Evaporative Emission Control System Leak Detected
Moderate severity
What it means
The EVAP system detected a large leak that strongly correlates with a missing or improperly closed fuel filler cap. After re-tightening the cap, the code clears once the readiness monitor completes.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Fuel cap loose, missing, or worn seal
highOne of the most commonly reported causes for this code — check this first.
Filler neck damaged
lowLess common, but worth ruling out after the more likely causes.
Related help
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