Noise from under vehicle after turning off the engine

Lexus GX / Lexus GX Owners Manual / For your information / Noise from under vehicle after turning off the engine

Approximately five hours after the engine is turned off, you may hear sound coming from under the vehicle for several minutes. This is the sound of a fuel evaporation leakage check and, it does not indicate a malfunction.

    See also:

    Overview buttons and guidance screen
    ...

    Vanity mirror
    Slide the cover to open. The light turns on when the cover is opened. NOTICE  - To prevent battery discharge Do not leave the vanity lights on for extended periods while the engine is off. ...

    Replacement parts
    To ensure optimum performance and maintain the quality built into your vehicle’s emission control systems, Lexus recommends the use of Genuine Lexus Parts when servicing or repairing the system ...