Solving P0455 on Your 2024 Toyota Tundra
A P0455 on your 2024 Toyota Tundra means the ECM detected a large EVAP system leak. Your 3rd-generation Tundra on the TNGA-F platform with the 3.5L twin-turbo i-FORCE V6 is under full warranty. Check the gas cap first—it's the simplest and most common cause.
Symptoms
- Check engine light with P0455
- Possible fuel odor
- Gas cap not clicking
- EVAP readiness monitor incomplete
Top Causes
- Gas Cap Seal (Very High Likelihood): Loose or defective. Tighten until it clicks. Warranty-covered.
- Canister Close Valve (CCV) (Medium Likelihood): Toyota's vent valve. Warranty-covered.
- EVAP Hose Connection (Medium Likelihood): Assembly issue. Warranty-covered.
- Purge VSV (Low Likelihood): Vacuum switching valve. Warranty-covered.
- Software Calibration (Low Likelihood): EVAP monitoring update. Free reflash.
What to Do
Tighten the gas cap and drive 2–3 days. If the light stays on, your Toyota dealer handles everything under warranty.
Warranty Coverage
Your 2024 Tundra is covered by Toyota's 3-year/36,000-mile basic warranty, 5-year/60,000-mile powertrain warranty, and federal emissions warranty (8yr/80k). All EVAP repairs are free.
Safe to Drive?
Yes. P0455 doesn't affect the Tundra's twin-turbo V6, 10-speed automatic, 4WD, or towing capacity.