Lexus LS 600h L 2015 Owner's Manual page 239

Battery-saving function
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In the following conditions, the remaining lights will go off automatically after 20
minutes in order to prevent the vehicle battery from being discharged:
The headlights and/or tail lights are on.
●
The power switch is turned to ACCESSORY mode or turned off.
●
This function will be canceled in any of the following situations:
When the power switch is turned to ON mode.
●
When the light switch is operated.
●
When the door or trunk is opened or closed.
●
Customization
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Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 564)
NOTICE
To prevent 12-volt battery discharge
■
Do not leave the lights on longer than necessary when the hybrid system is off.
LS600hL_U(OM50E41U)
4-3. Operating the lights and wipers
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