2003 Lexus GS300 Electrical Components

64G081

1Bubble 2Acceptable range
Vertical movement gauge: The bubble of the gauge should
not deviate from the center of the gauge by more than 2 marks
to either side of the gauge.
If the bubble is out of the acceptable range of the beam angle
gauge, adjust it using bolt A.
64G082a
Turn the bolt A in either direction using a Phillips±head
screwdriver.

64G084

1Red line 2Acceptable range
Horizontal movement gauge: The red line should not
deviate by more than 2 blue lines to either side of the gauge.
If the red line is out of the acceptable range of the beam angle
gauge, adjust it using bolt B.
64g083a
Turn the bolt B in either direction using a Phillips±head
screwdriver.
If the error is over the value specified above, take the vehicle
to your Lexus dealer to adjust the headlight aim.

REPLACING LIGHT BULBS
The illustrations on the following pages show the locations of
light bulbs. If it is necessary to replace a bulb, take your vehicle
to your Lexus dealer as soon as possible. Use bulbs with the
bulb numbers and wattage ratings given in the table.
CAUTION
To prevent burning yourself, do not replace the light
bulbs while they are hot.
Do not disassemble, repair or take apart the low beam
headlight bulbs, connector, power supply circuits
and rotated components. Or you may be injured by
electric shocks. Call your dealer when the headlights
fail to work or have to be replaced or disposed of.
Halogen bulbs have pressurized gas inside and
require special handling. They can burst or shatter if
scratched or dropped. Hold a bulb only by its plastic
or metal case. Do not touch the glass part of a bulb
with bare hands.
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 fogged 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.

LIGHT LOCATION
64G023b
Light Bulbs Bulb No. W Type
1 Headlight (Low beam)
Discharge bulb D2R 35 B
Halogen bulb HB4 51 C
2 Front turn signal light ±±± 21 D
3 Headlight (High beam) HB3 60 A
4 Parking light ±±± 5 D
5 Fog light HB4 51 C
6 Front side marker light 194 3.8 D
64G075a
Light Bulbs Bulb No. W Type
1 Trunk light 194 3.8 D
2 High mounted stoplight ±±± 5 D
3 Tail/stop light ±±± 5/21 D
4 Tail light ±±± 5/21 D
5 Rear turn signal light ±±± 21 D
6 Back±up light 921 16 D
7 Tail/stop light ±±± 5/21 D
8 License plate light ±±± 5 D

64G059
Light Bulbs Bulb No. W Type
1 Front personal lights ±±± 8 F
2 Vanity lights ±±± 3 E
3 Front interior lights ±±± 8 E
4 Rear personal lights ±±± 5 F
5 Door courtesy lights 194 3.8 D
6 Foot lights ±±± 1.4 D
7 Glove box light ±±± 1.2 D
A: HB3 halogen bulbs
B: D2R discharge bulbs
C: HB4 halogen bulbs
D: Wedge base bulbs
E: Double end bulbs
F: Single end bulbs