Pursuing P0455 on Your 2022 Volvo XC90
A P0455 on your 2022 XC90 indicates a large EVAP leak. Whether you have the B5 (mild hybrid turbo), B6 (mild hybrid turbo+supercharged), or T8 Recharge (PHEV), the EVAP system shares core components. Volvo's 4-year/50,000-mile warranty runs through 2026.
Clues
- Check engine light on
- P0455 stored in ECM
- Possible fuel smell
- Gas cap not seating
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$30.
- EVAP Purge Valve (Medium Likelihood): Volvo solenoid. $150–$320 installed.
- Canister Vent Valve (Medium Likelihood): Stuck or leaking. $140–$300 installed.
- Charcoal Canister (Low-Medium Likelihood): Saturation. $280–$500 installed.
- Vapor Line (Low Likelihood): Connection issue. $120–$260.
Diagnosis
Gas cap first. If P0455 persists, your Volvo dealer with VIDA diagnostics will pinpoint the issue. A smoke test also works for EVAP leaks.
Warranty
Volvo's 4yr/50k warranty runs through 2026. Federal emissions (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the engine, PHEV system, AWD, or any features.