Lexus GS300 1998 Owner's Manual page 49

SWITCHES
12L001
To turn the lights on, twist the knob on the end of the lever.
FIRST CLICKSTOP: Only the parking, tail, license plate,
side marker and instrument panel lights turn on.
SECOND CLICKSTOP: Headlights also turn on.
THIRD CLICKSTOP ("AUTO"): The headlights and all
other lights automatically turn on depending on the darkness
of the surroundings.*
Vehicles sold in U.S.A.: When the headlights are on, the
headlight indicator lights up in the instrument cluster.
Vehicles sold in Canada: When the tail lights are on, the tail
light indicator lights up in the instrument cluster.
Manually twist the knob to the second clickstop to turn on
the headlights if they are needed immediately when
entering a dark tunnel, parking structure, etc.
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