P0456 on Your 2019 Cherokee: The Refreshed KL
Your 2019 Cherokee (KL—refreshed with updated front styling and the new 2.0L turbo option) has triggered P0456—a very small EVAP leak. The 2.4L Tigershark, 3.2L Pentastar V6, or 2.0L turbo uses a Stellantis EVAP system with NVLD. Federal emissions (8yr/80k) covers through 2027.
Clues
- Check engine light on
- P0456 stored
- No performance symptoms
- Gas cap may show wear after 6+ years
Suspects
- Gas Cap Seal (High Likelihood): Six years of wear. $10–$15.
- NVLD Sensor (High Likelihood): Well-documented failure on the KL platform. Under emissions warranty or $120–$280.
- Purge Solenoid Valve (Medium Likelihood): Heat cycling. Under emissions warranty or $100–$240.
- EVAP Hose (Medium Likelihood): Rubber deterioration. $120–$250.
- Charcoal Canister (Low Likelihood): Fuel overfilling. $200–$380.
Diagnostic Steps
- Replace gas cap—$10–$15
- Clear code, drive 2–3 cycles
- Check federal emissions warranty—8yr/80k through 2027
- Dealer wiTech diagnostics for NVLD
- Smoke test if out-of-pocket ($80–$150)
Costs
- Gas cap: $10–$15
- NVLD sensor: $120–$280 (may be emissions covered)
- Purge valve: $100–$240
- Federal emissions 8yr/80k through 2027
Can I Drive?
Yes. P0456 has zero impact on any engine option, 4x4, or safety.
Warranty
Basic 3yr/36k expired. Powertrain 5yr/60k expired. Federal emissions 8yr/80k covers EVAP through 2027.