Tracking Down P0455 on Your 2022 Toyota Tundra
A P0455 on your 2022 Toyota Tundra means the system found a large EVAP leak. Your all-new 3rd-generation Tundra on the TNGA-F platform—with the 3.5L twin-turbo i-FORCE V6 or i-FORCE MAX hybrid—may still be within Toyota's basic warranty. The gas cap is still the #1 cause.
What You May Notice
- Check engine light with P0455
- Faint fuel odor
- Gas cap not clicking
- Emissions test failure
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $10–$20 OEM replacement.
- Canister Close Valve (CCV) (Medium Likelihood): Vent valve. $150–$260.
- EVAP Hose (Medium Likelihood): New platform—possible assembly issue or road damage. $80–$240.
- Purge VSV (Low Likelihood): Vacuum switching valve. $100–$220.
- Charcoal Canister (Low Likelihood): Physical damage from road debris. $200–$450.
Diagnostic Steps
Tighten the gas cap and drive 2–3 days. If P0455 returns, visit a Toyota dealer for Techstream diagnostics and smoke testing.
Warranty Status
Toyota's basic warranty (3yr/36k) runs through 2025. The federal emissions warranty (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the Tundra's 3.5TT V6, 10-speed automatic, 4WD, or towing capacity.