2006 Lexus GS430 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2005 PROD. OWNER'S MANUAL (OM30649U)

ELECTRICAL COMPONENTS
580
Adjusting the headlight aiming (low beam)
G64021
 1Adjusting bolt A
2Adjusting bolt B
G64022
 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 and B.

ELECTRICAL COMPONENTS
581
G64023
1. Turn the bolt A in either direction using a Phillips−head
screwdriver. At this time, k eep the turning direction and
number of turns in mind.
G64024
2. Turn the bolt B the same number of turns and in the same
direction as step 1 using a Phillips− head screwdriver.
If you do not know or cannot find the original position, or if you
feel that there is a large deviation, take the vehicle to your
Lexus dealer to adjust the headlight aim.
After adjusting the headlight in the vertical direction, check that
the light has been shifted from the adjusted position in the
horizontal direction.

ELECTRICAL COMPONENTS
582
Adjusting the headlight aiming (high beam)
G64025
 1Adjusting bolt A
2Adjusting bolt B
G64026
 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.

ELECTRICAL COMPONENTS
583
G64027
Turn the bolt A in either direction using a Phillips−head
screwdriver.
64G084
 1 Red 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.

ELECTRICAL COMPONENTS
584
G64028
Turn the bolt B in either direction using a Phillips−head
screwdriver.
If you do not know or cannot find the original position, or if you
feel that there is a large deviation, 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.
The tail lights, stop lights, high mounted stoplight and rear side
marker light consist of a number of LEDs. If any LED burns out,
we recommend you take your vehicle to your Lexus dealer to
have the light inspected as soon as possible.
CAUTION
 To prevent burning yourself, do not replace the light
bulbs while they are hot.
 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.
 Do not touch the high voltage socket when the head-
lights turn on. 20000 V is momentarily generated and
may cause severe injury by electric shock.
 Do not disassemble, repair or take apart the headlight
bulbs, connector, power supply circuits and rotated
components. Or you may be injured by electric
shock. Call your dealer when the headlights fail to
work or have to be replaced or disposed of.

ELECTRICAL COMPONENTS
585
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 pr oblem because the fogging is
caused by the temperature dif ference 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. LIGHT LOCATION
G64017
Light Bulbs
Bulb No. W Type
1 Headlight (High beam) HB3 60 A
2 Parking light −−−5D
3 Front turn signal light −−−21 E
4 Headlight (Low beam) D4S 35 B
5 Front side marker light 194 5 D
6 Fog light HB4 51 C

ELECTRICAL COMPONENTS
586
G64018
Light BulbsBulb No. W Type
1 High mounted stoplight −−−3.6 G
2 Tail light −−−0.9/0.5 G
3 Tail/stop light −−−0.9/10.8 G
4 Trunk light −−−5F
5 Rear side marker light −−−0.5 G
6 Rear turn signal light −−−21 E
7 Back− up light 921 16 D
8 License plate light −−−0.85 G
G64019
Light Bulbs Bulb No. W Type
1 Front interior lights −−−0.1 G
2 Front seat spot lights −−−0.1 G
3 Vanity lights −−−8D
4 Rear seat spot lights −−−0.2 G
5 Door courtesy lights −−−0.2 G
6 Foot lights −−−0.2 G
7 Glove box light −−−0.2 G

ELECTRICAL COMPONENTS
587
A: HB3 halogen bulbs
B: D4S discharge bulbs
C: HB4 halogen bulbs
D: Wedge base bulbs (clear)
E: Wedge base bulbs (amber)
F: Double end bulbs
G: LEDs (Light−
emitting Diodes)