2008 Lexus GS350 Headlight

456
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 pm
GS350
FuseAmpereCircuit
1FR CTRL-B25H-LP UPR and HORN
2A/F15Exhaust system
3ETCS10Electronic throttle control system
4ALT-S7. 5 Charging system
5H-LP CLN30Headlight cleaner
6A/C COMP7. 5 Air conditioning system
7DEICER25
8FR CTRL-AM30FR TAIL, FR FOG and WASHER
9IG210Ignition system and noise filter
10EFI NO.210Fuel system and exhaust system
GS_U_G.book Page 456 Thursday, June 19, 2008 12:54 PM

457
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
FuseAmpereCircuit
11H-LP R LWR15Headlight low beam (right)
12H-LP L LWR15Headlight low beam (left)
13F/ P M P25Fuel system
14EFI NO.125
Multiport fuel injection system/
sequential multiport fuel injection
system
15INJ20
Multiport fuel injection system/
sequential multiport fuel injection
system
16H-LP HI15Headlight high beams
17HORN10Horns
18WA S H E R20Windshield wipers and washer
19FR TAIL10Parking lights, side marker light
20FR FOG15Front fog lights
GS_U_G.book Page 457 Thursday, June 19, 2008 12:54 PM

459
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 pm
FuseAmpereCircuit
8FUEL OPN10Fuel filler door opener, trunk lid
opener
9ECU-IG LH10
VDIM, electronically controlled
brake system, yaw rate and G sensor,
steering sensor, cruise control sys-
tem, dynamic radar cruise control
system, EPS, VGRS, rear view moni-
tor system, four-wheel drive system,
front controller, moon roof, rain sen-
sor
10FR S/HTR LH15Seat heaters and ventilators
11RR DOOR LH20
Rear left door control system (power
door lock system, door courtesy light,
power window)
12FR DOOR LH20
Front left door control system (power
door lock system, power rear view
mirror control system, door courtesy
light, outside rear view mirror heater,
power window)
13RAD NO.310Audio system
14H-LP LVL7. 5AFS, automatic headlight leveling
control system
GS_U_G.book Page 459 Thursday, June 19, 2008 12:54 PM

460
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 pm
FuseAmpereCircuit
15LH-IG10
Charging system, headlight cleaners,
exhaust gas sensor, rear window
defogger, electric cooling fans, rear
left door control system, front left
door control system, emergency
flashers, automatic transmission, seat
belt pretensioners, Intuitive parking
assist, power window
16FR WIP30Windshield wipers and washer
GS_U_G.book Page 460 Thursday, June 19, 2008 12:54 PM

467
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 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
GS_U_G.book Page 467 Thursday, June 19, 2008 12:54 PM

468
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 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
GS_U_G.book Page 468 Thursday, June 19, 2008 12:54 PM

469
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
June 19, 2008 12:54 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.
GS_U_G.book Page 469 Thursday, June 19, 2008 12:54 PM

470
4-3. Do-it-yourself maintenance
GS_G_U
June 19, 2008 12:54 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 0 8
■ Front bulb locations
■ Rear bulb locations
Parking light
Headlight high beam
Rear turn signal light Back-up light
GS_U_G.book Page 470 Thursday, June 19, 2008 12:54 PM