Lexus GS 350 Owner's Manual page 187

Turn signals can be operated when
■
The engine switch is in IGNITION ON mode.
If the indicator flashes faster than usual
■
Check that a light bulb in the front or rear turn signal lights has not burned out.
If the turn signals stop flashing before a lane change has been performed
■
Operate the lever again.
Customization
■
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature →P. 777)
4-2. Driving procedures
185
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