2010 Lexus GS350 maintenance

503
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Right side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30Power seat system
2OBD7. 5On-board diagnosis system
3STOP SW7. 5
Stop/tail lights, multi-port fuel injec-
tion system/sequential multiport fuel
injection system, starting system,
electronically controlled brake sys-
tem, Enhanced VSC system, shift
lock system, ECT ECU
4AM17. 5
5TI & TE20Tilt and telescopic steering wheel,
multiplex communication system
6SECURITY7. 5Smart access system with push-but-
ton start
7STR LOCK25Steering lock system
8GAUGE7. 5Gauges and meters

504
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
9IGN10
Multi-port fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, stop/tail
lights, steering lock system, electroni-
cally controlled brake system, occu-
pant classification system ECU
10ACC7. 5
Multiplex communication system,
smart access system with push-but-
ton start, rear view monitor system,
audio system, air conditioning system
11CIG15Cigarette lighter
12PWR OUTLET15Po w e r o u t l e t
13AIR SUS20Adaptive variable suspension system
14RR DOOR RH20
Rear right door control system
(power door lock system, door cour-
tesy light, power window)
15FR DOOR RH20
Front right door control system
(power door lock system, power rear
view mirror control system, door
courtesy light, outside rear view mir-
ror heater, power window), multiplex
communication system

505
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
16AM27. 5Starting system
17RH-IG7. 5
Seat heater switches, front right door
control system, rear right door con-
trol system, capacitor, combination
switch, seat belt pretensioners, shift
lever switch, power window
18FR S/HTR RH15Seat heaters and ventilators
19ECU-IG RH10
Tilt and telescopic steering, combina-
tion switch, multiplex communication
system, power seat, smart entry &
start system, air conditioning system,
audio system, shift lock system

506
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Luggage compartment
FuseAmpereCircuit
1RR S/SHADE7. 5Rear sunshade
2PSB30Pre-collision seat belt
3RR-IG210
4RR-IG110Pre-collision seat belt, seat belt pre-
tensioners, A/P UNIT, rear sunshade
5RR-B10Trunk light, noise filter
6RR FOG7. 5
7STOP LP L10Stoplights, back-up light
8STOP LP R10High mounted stoplights
9RR TAIL10Tail lights, license plate lights, rear
side marker lights

507
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Luggage compartment 
(vehicles with active stabilizer suspension system)
FuseAmpereCircuit
1STB FR50Front stabilizer
2STB RR30Rear stabilizer
3STB DC/DC30DC/DC converter
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (P. 5 1 2 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

508
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

509
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Headlight aim
■Gauges
High beam vertical position
Low beam vertical position
High beam horizontal posi-
tion
Low beam horizontal position

510
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Adjustment bolts
High beam horizontal adjust-
ment
High beam vertical adjust-
ment
Low beam adjustment bolt A
Low beam adjustment bolt B
■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.
STEP1
STEP2
STEP3
STEP4