Evaporative Emission Control System Leak Detected (Gross Leak)

What does this mean?

Code P0455 indicates the PCM has detected a large leak in the EVAP system. A gross leak is typically much easier to find than a small leak.

Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Genesis G80 models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.