2024 Acura RDX P0455: Large EVAP Leak — Warranty Guide

P0455 on Your 2024 Acura RDX

A P0455 on your 2024 RDX (TC platform) means a large EVAP leak. The 2.0L turbo with SH-AWD is fully under Acura warranty. Check the gas cap first.

Symptoms

• Check engine light with P0455
• Possible fuel smell
• Gas cap not seating
• EVAP monitor incomplete

Top Causes

1. Gas Cap Seal (Very High Likelihood): Loose or factory defect. Warranty-covered.
2. Canister Vent Shut Valve (Medium Likelihood): Honda/Acura EVAP valve. Warranty-covered.
3. Purge Solenoid (Medium Likelihood): Factory defect. Warranty-covered.
4. Charcoal Canister (Low Likelihood): Manufacturing issue. Warranty-covered.
5. Software Calibration (Low Likelihood): ECU update. Warranty-covered.

What to Do

Tighten the gas cap and drive 2–3 days. If P0455 persists, visit your Acura dealer for free warranty diagnosis with HDS.

Warranty

Your 2024 RDX is covered by Acura's 4-year/50,000-mile warranty through 2028. Federal emissions (8yr/80k) extends through 2032.

Safe to Drive?

Yes. P0455 doesn't affect the turbo engine, SH-AWD, or any features.

Frequently Asked Questions