WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
P0455: EVAP GROSS LEAK
EVAP pressure when vacuum introduction is complete
Higher than [reference pressure x 0.2]
P0456: EVAP SMALL LEAK
EVAP pressure when vacuum introduction is complete
Between reference pressure and [reference pressure x 0.2]