2008 Lexus GS450h headlight

462
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
FuseAmpereCircuit
23A/F15Fuel system
24INV W/P10Hybrid system
25IGCT No.120Hybrid system, IGCT No.2,
IGCT No.3
26FR FOG15Fog light
27FR TAIL10Tail light, rear side marker light
28WA S H20Windshield wipers and washer
29HORN10Horn
30H-LP UPR20Headlight high beam
31DC/DC140Charging system
32RAD FAN60Electric cooling fans
33LH J/B AM80
S/ROOF, FR P/SEAT LH, TV, A/C,
FUEL OPN, FR WIP, H-LP LVL,
FR S/HTR LH, A/C W/P
34E/G AM60H-LP CLN, FR CTRL-AM, DEICER,
STB AM
35HEATER50Air conditioning system
36DEFOG50Rear window defogger
37ABS230VSC, ABS
38RH J/B-AM80
AM1, OBD, STOP SW, TI & TE,
FR P/SEAT RH, STR LOCK,
SECURITY, ECU-IG R, RH-IG,
F S/HTR RH, CIG, PWR OUTLET,
AIR SUS
GS450h_HV_U.book Page 462 Thursday, June 19, 2008 1:44 PM

464
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
■Left side instrument panel
FuseAmpereCircuit
1FR WIP30Windshield wipers and washers
2RR-IG7. 5RR-IG1
3LH-IG10
Emergency flashers, seat belt preten-
sioners, headlight cleaners, exhaust
system, rear window defogger, elec-
tric cooling fans, front left door con-
trol system, rear left door control
system
4H-LP LVL7. 5Adaptive front lighting system
5A/C W/P7. 5Air conditioning system
6RAD No.310Audio system
7FR DOOR LH20Front left door control system
8RR DOOR LH20Rear left door control system
9FR S/HTR LH15Seat heaters, seat heaters and venti-
lators
GS450h_HV_U.book Page 464 Thursday, June 19, 2008 1:44 PM

471
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
Headlight aim
■Gauges
High beam vertical position
Low beam vertical position
High beam horizontal posi-
tion
Low beam horizontal position
■ Adjustment bolts
High beam horizontal adjust-
ment
High beam vertical adjust-
ment
Low beam adjustment bolt A
Low beam adjustment bolt B
GS450h_HV_U.book Page 471 Thursday, June 19, 2008 1:44 PM

472
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
■Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
■ Adjusting the headlight aim
Low beam (vertical adjustment)
Using a Phillips-head screw-
driver, turn adjustment bolt A so
that the bubble is within the 2
center lines.
Remember the turning direction
and the number of turns.
Turn bolt B the same number of
turns and in the same direction
as step 1.
STEP1
STEP2
STEP3
STEP4
GS450h_HV_U.book Page 472 Thursday, June 19, 2008 1:44 PM

473
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
Low beam (horizontal adjustment)
Turn adjustment bolt A so that the red line on the gauge is in the middle
of the “0” mark (within the blue lines to either side of the gauge).
High beam (vertical and horizontal adjustment)
Turn each adjustment bolt in either direction so that the bubble in
within the 2 center lines (vertical), and the red line on the gauge is in
the middle of the “0” mark (within the blue lines to either side of the
gauge) (horizontal).
If you feel that there is a large deviation, have the headlight aim
adjusted at a Lexus dealer.
GS450h_HV_U.book Page 473 Thursday, June 19, 2008 1:44 PM

474
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Prepare a replacement light bulb
Check the wattage of the light bulb being replaced. ( →P. 5 5 2 )
■ Remove the engine compartment cover if necessary
→ P. 4 2 1
■ Front bulb locations
■ Rear bulb locations
Parking light
Headlight high beam
Rear turn signal light Back-up light
GS450h_HV_U.book Page 474 Thursday, June 19, 2008 1:44 PM

475
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
Replacing light bulbs■ Headlight high beam
Left-hand side: Remove the fuse
box cover.
Unplug the connector while
depressing the lock release.
Turn the bulb base counterclock-
wise to remove it.
STEP1
STEP2
STEP3
GS450h_HV_U.book Page 475 Thursday, June 19, 2008 1:44 PM

478
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
●Headlight low beams (high-intensity discharge bulbs)
● Fog lights
● Front turn signal lights
● Front side marker lights
● Side turn signal lights
● Tail/stop lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
● License plate lights
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
■LED light bulbs
The side turn signal lights, tail, tail/stop and high mounted stoplights consist of a
number of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer
to have the light replaced.
If two or more LEDs in a stoplight burn out, your vehicle may not conform to local
laws (SAE).
GS450h_HV_U.book Page 478 Thursday, June 19, 2008 1:44 PM