Investigating P0455 on Your 2024 Honda CR-V
A P0455 on your 2024 Honda CR-V means the ECM detected a large EVAP system leak. Your 6th-generation CR-V is under full warranty, making this a no-cost repair. But first—check your gas cap, because it's the most common cause.
Note: If you have the CR-V Hybrid, the EVAP system still exists for the gasoline engine.
Symptoms
- Check engine light with P0455
- Possible faint fuel odor
- Gas cap not clicking properly
- EVAP readiness monitor incomplete
Top Causes
- Gas Cap Seal (Very High Likelihood): Loose or defective seal. Tighten until it clicks. Warranty-covered if defective.
- Canister Vent Shut Valve (Medium Likelihood): Honda's vent valve stuck open. Warranty-covered replacement.
- EVAP Hose Connection (Medium Likelihood): Factory assembly issue. Warranty-covered.
- Bypass Solenoid Valve (Low Likelihood): Honda EVAP component. Warranty-covered.
- Fuel Tank Seal (Low Likelihood): Rare manufacturing defect. Warranty-covered.
What to Do
Tighten the gas cap until it clicks and drive for 2–3 days. If the light clears, it was a loose cap. If it persists, your Honda dealer will use HDS diagnostics and smoke testing to find the leak—all free under warranty.
Warranty Coverage
Your 2024 CR-V is under Honda's 3-year/36,000-mile basic warranty, 5-year/60,000-mile powertrain warranty, and the federal emissions warranty (8 years/80,000 miles). All EVAP repairs are free.
Safe to Drive?
Yes. P0455 doesn't affect the CR-V's engine, AWD system, or any driving features.