2024 Mitsubishi Outlander P0455: Large EVAP Leak — Warranty Guide

P0455 on Your 2024 Mitsubishi Outlander

A P0455 on your 2024 Outlander means a large EVAP leak. The 3-row SUV with the 2.5L I4 is fully under Mitsubishi's generous warranty. 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. Purge Control Solenoid (Medium Likelihood): EVAP valve. Warranty-covered.
3. Vent Control Valve (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, your Mitsubishi dealer will diagnose and repair free under warranty.

Warranty

Your 2024 Outlander is covered by Mitsubishi's 5-year/60,000-mile warranty through 2029. Federal emissions (8yr/80k) extends through 2032.

Safe to Drive?

Yes. P0455 doesn't affect the engine, S-AWC, or any features.

Frequently Asked Questions