P0456 on the All-New 2024 Santa Fe
Your 2024 Santa Fe (5th generation, MX5—a complete redesign) has triggered P0456—a very small EVAP leak. The all-new Santa Fe features a bold boxy design and the 2.5L turbo four-cylinder. Under Hyundai's generous warranty, this costs nothing.
Symptoms
- Check engine light on
- P0456 stored
- No performance issues
- AWD and all features normal
Causes
- Gas Cap Seal (High Likelihood): Loose cap. $0 warranty.
- Purge Control Solenoid Valve (High Likelihood): New platform variance. $0 warranty.
- Canister Close Valve (Medium Likelihood): Vent control. $0 warranty.
- EVAP Connection (Medium Likelihood): Factory assembly. $0 warranty.
- Software Update (Low Likelihood): First-year ECM calibration. $0 warranty.
What to Do
- Reseat gas cap
- Schedule warranty appointment
- Dealer fixes for free
Cost
- Under warranty: $0
- 5yr/60k through 2029
- Federal emissions through 2032
Can I Drive?
Yes. P0456 has zero impact on the 2.5T engine, AWD, or any feature.
Warranty
Hyundai's 5yr/60k through 2029. 10yr/100k powertrain. Federal emissions 8yr/80k through 2032. Let the dealer handle it.