WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. 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]