Tracking P0456 on Your 2022 Sorento
Your 2022 Sorento (4th generation, MQ4) has flagged P0456—a very small EVAP leak. The 2.5L MPI, 2.5L turbo, or 1.6L turbo hybrid all share the EVAP system. Well within Kia's 5yr/60k warranty.
Clues
- Check engine light on
- P0456 stored
- No performance or AWD issues
- All features normal
Causes
- Gas Cap Seal (High Likelihood): Loose. $0 warranty.
- Purge Control Solenoid Valve (High Likelihood): Standard failure. $0 warranty.
- Canister Close Valve (Medium Likelihood): Vent control. $0 warranty.
- EVAP Hose (Medium Likelihood): Connection. $0 warranty.
- FTP Sensor (Low Likelihood): Sensitivity. $0 warranty.
What to Do
- Reseat gas cap
- Warranty appointment—Kia 5yr/60k through 2027
- Free repair
Cost
- Under warranty: $0
- 5yr/60k through 2027
- Federal emissions through 2030
Can I Drive?
Yes. P0456 has zero impact on towing, AWD, or any feature.
Warranty
Kia's 5yr/60k through 2027. 10yr/100k powertrain. Federal emissions 8yr/80k through 2030.