Tracking P0455 on Your 2022 Chevrolet Equinox
A P0455 on your 2022 Equinox indicates the ECM found a large EVAP leak. Your 3rd-generation Equinox with the 1.5L turbo may still be within GM's basic warranty depending on mileage. Check the gas cap first—it's the simplest and most common fix.
Clues to Look For
- Check engine light with P0455
- Possible fuel odor near the rear
- Gas cap not clicking properly
- Emissions test failure
Suspects Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. Tighten or replace ($10–$25).
- Vent Valve Solenoid (Medium Likelihood): GM's vent solenoid failing to seal. $100–$200 if out of warranty.
- Purge Solenoid (Medium Likelihood): Stuck open or leaking. $80–$180.
- Vapor Line (Low Likelihood): Cracked or disconnected. $80–$200.
- Charcoal Canister (Low Likelihood): Saturated. $200–$350.
What to Do
Tighten the gas cap and drive 2–3 days. If P0455 stays, visit a Chevy dealer. Check your warranty status—you may be within the 3yr/36k window. The emissions warranty covers this through 2030 regardless.
Warranty Coverage
GM's basic warranty (3 years/36,000 miles) runs through 2025. The federal emissions warranty (8 years/80,000 miles) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the Equinox's 1.5L turbo, 6-speed automatic, or AWD.