P0456 on Your 2024 Gladiator: Quick Resolution
Your 2024 Gladiator (JT) has flagged P0456—a very small EVAP leak. The 3.6L Pentastar V6 uses a standard Stellantis EVAP system with NVLD. Nearly new and fully covered under warranty through 2027.
Clues
- Check engine light on
- P0456 stored
- No drivability issues
- Gas cap may not be clicked in, or trail debris present
Suspects
- Gas Cap Not Seated (High Likelihood): Most common on newer vehicles. $0.
- NVLD Sensor (Medium Likelihood): Off-road contamination. $0 warranty.
- Purge Solenoid Valve (Low Likelihood): Manufacturing variance. $0 warranty.
- Software Calibration (Low Likelihood): Detection sensitivity. $0 warranty update.
What to Do
- Reseat gas cap—clean any trail debris
- If off-roaded recently, allow to dry and clear code
- Dealer appointment if persistent—covered through 2027
Cost
- Under warranty: $0
- 3yr/36k through 2027
- Federal emissions through 2032
Can I Drive?
Yes. P0456 has zero impact on the V6, 4x4, towing, or any feature.
Warranty
Stellantis 3yr/36k through 2027. 5yr/60k powertrain. Federal emissions 8yr/80k through 2032. Fully covered.