Lexus GS430 User Manual page 606

NOTICE
Only use a bulb of the listed type.
The inside of the lens of exterior lights such as headlights may
temporarily fog up when the lens becomes wet in the rain or in
a car wash. This is not a problem because the fogging is
caused by the temperature difference between the outside and
inside of the lens, just like the windshield fogs up in the rain.
However, if there is a large drop of water on the inside of the
lens, or if there is water pooled inside the light, contact your
Lexus dealer.
ELECTRICAL COMPONENTS
LIGHT LOCATION
G64017
Light Bulbs Bulb No.
1 Headlight (High beam) HB3
−−−
2 Parking light
−−−
3 Front turn signal light
4 Headlight (Low beam) D4S
5 Front side marker light 194
6 Fog light HB4
W Type
60 A
5 D
21 E
35 B
5 D
51 C
585