2022 Hyundai Santa Fe P0456: Very Small EVAP Leak Fix

P0456 on Your 2022 Santa Fe: Warranty Covers It

Your 2022 Santa Fe (4th generation, refreshed with new 2.5L MPI or 1.6L turbo hybrid) has flagged P0456—a very small EVAP leak. Well within Hyundai's 5yr/60k warranty.

Symptoms

• Check engine light on
• P0456 stored
• No performance or AWD issues
• Hybrid system (if equipped) normal

Causes

1. Gas Cap Seal (High Likelihood): Loose. $0 warranty.
2. Purge Control Solenoid Valve (High Likelihood): Standard failure. $0 warranty.
3. Canister Close Valve (Medium Likelihood): Vent control. $0 warranty.
4. EVAP Connection (Medium Likelihood): Loose. $0 warranty.
5. FTP Sensor (Low Likelihood): Sensitivity. $0 warranty.

What to Do

1. Reseat gas cap
2. Warranty appointment—Hyundai 5yr/60k through 2027
3. Free repair

Cost

• Under warranty: $0
• 5yr/60k through 2027
• Federal emissions through 2030

Can I Drive?

Yes. P0456 has zero impact on performance, AWD, or hybrid system.

Warranty

Hyundai's 5yr/60k through 2027. Federal emissions 8yr/80k through 2030. Let the dealer handle it.

Frequently Asked Questions