P0456 on Your 2024 Frontier: Warranty Handles It
Your 2024 Frontier (3rd generation) has triggered P0456—a very small EVAP leak. The 3.8L V6 with 9-speed automatic uses Nissan's EVAP system. Under full warranty, this costs you nothing.
Symptoms
- Check engine light on
- P0456 stored
- No towing or performance issues
- All features normal
Causes
- Gas Cap Seal (High Likelihood): Loose cap. $0 warranty.
- EVAP Leak Detection Pump (High Likelihood): Nissan-specific. $0 warranty.
- Purge Volume Control Valve (Medium Likelihood): Component variance. $0 warranty.
- Canister Close Valve (Medium Likelihood): Road debris. $0 warranty.
- Software Update (Low Likelihood): ECM calibration. $0 warranty.
What to Do
- Reseat gas cap
- Schedule warranty appointment
- Dealer fixes for free with CONSULT diagnostics
Cost
- Under warranty: $0
- Bumper-to-bumper through 2027
- Federal emissions through 2032
Can I Tow?
Yes. P0456 has zero impact on towing (6,720 lbs), V6, 4WD, or any feature.
Warranty
Nissan's 3yr/36k through 2027. Federal emissions 8yr/80k through 2032. Let the dealer handle it.