Investigating P0455 on Your 2024 Jeep Wrangler
A P0455 on your 2024 Wrangler means the PCM detected a large EVAP system leak. Whether you have the 3.6L Pentastar V6 or the 2.0L turbo, your Wrangler is fully under warranty. Gas cap first—especially important on Wranglers that see frequent top-down or off-road use.
Symptoms
- Check engine light with P0455
- MIL illuminated on dash
- Possible fuel smell
- Gas cap not seating
Top Causes
- Gas Cap Seal (Very High Likelihood): Wranglers are especially prone due to trail use, dust, and debris. Warranty-covered.
- EVAP Canister Vent Valve (Medium Likelihood): FCA/Stellantis vent valve. Warranty-covered.
- Purge Solenoid (Medium Likelihood): Stuck open. Warranty-covered.
- Vapor Line Damage (Low-Medium Likelihood): Off-road impacts can damage underbody vapor lines. Warranty-covered.
- Fuel Tank/Filler Neck (Low Likelihood): Trail damage. Warranty-covered (if not abuse).
Wrangler-Specific Consideration
Off-road use, water fording, and top-down driving expose the gas cap and EVAP components to more debris and moisture than typical vehicles. Always ensure the gas cap is clean and properly seated after trail use.
Warranty
Your 2024 Wrangler is covered by Stellantis's 3-year/36,000-mile warranty through 2027. Federal emissions warranty (8yr/80k) extends through 2032.
Safe to Drive?
Yes. P0455 doesn't affect the engine, 4WD, axle lockers, or any off-road systems.