P0456 on Your 2024 Compass: Quick Investigation
Your 2024 Compass (updated with the new 2.0L turbo four-cylinder replacing the 2.4L) has flagged P0456—a very small EVAP leak. The Stellantis EVAP system uses NVLD for leak detection. Fully covered under Stellantis's 3yr/36k warranty through 2027.
Clues
- Check engine light on
- P0456 stored
- No drivability issues
- Gas cap may not be fully seated
Suspects
- Gas Cap Not Seated (High Likelihood): Most common trigger. $0.
- NVLD Sensor (Medium Likelihood): Natural Vacuum Leak Detection. $0 warranty.
- Purge Solenoid Valve (Medium Likelihood): New engine calibration. $0 warranty.
- Software Calibration (Low Likelihood): New powertrain sensitivity. $0 warranty update.
What to Do
- Reseat gas cap firmly
- If light persists, dealer appointment—covered through 2027
- Free warranty repair via wiTech diagnostics
Cost
- Under warranty: $0
- 3yr/36k through 2027
- Federal emissions through 2032
Can I Drive?
Yes. P0456 has zero impact on the 2.0L turbo, AWD, or safety.
Warranty
Stellantis 3yr/36k through 2027. 5yr/60k powertrain. Federal emissions 8yr/80k through 2032. New engine for 2024—dealer may have updated calibrations.