Lexus LS600hL Owner's Manual page 689

To prevent 12-volt battery discharge
■
If the vanity lights remain on when the power switch is turned off, the lights will go off
automatically after 20 minutes.
NOTICE
When not in use
■
Keep the rear vanity mirror closed.
To prevent the 12-volt battery from being discharged
■
Do not leave the vanity lights on for extended periods while the hybrid system is off.
LS600hL_U(OM50D26U)
5-9. Other interior features
689
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