Lexus 2013 GS 350 Owner's Manual page 170

194
4-3. Operating the lights and wipers
If the "AFS OFF" indicator flashes
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It may indicate a malfunction in the system. Contact your Lexus dealer.
Customization
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Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features:
NOTICE
To prevent battery discharge
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Do not leave the lights on longer than necessary when the engine is not running.
GS350_U (OM30C34U)
P. 777)
I n f o r ma t i o n P r o v i d e d b y :