Page 607 of 844

607
GS350_OM_OM30D41U_(U)
Maintenance and care6
6-1. Maintenance and care Cleaning and protecting the vehicle exterior................ 608
Cleaning and protecting the vehicle interior .................... 612
6-2. Maintenance Maintenance requirements .....615
General maintena nce ............... 618
Emission inspection and maintenance (I/M)
programs .................................... 622
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................ 623
Hood ............................................... 626
Positioning a floor jack ..............627
Engine compartment ............... 629
Tires .................................................. 642
Tire inflation pressure ............... 652
Wheels ........................................... 655
Air conditioning filter ............... 657
Electronic key battery .............. 659
Checking and replacing fuses ................................................661
Headlight aim ............................... 674
Light bulbs...................................... 676
Page 620 of 844
620
GS350_OM_OM30D41U_(U)
6-2. Maintenance
Head restraints•Do the head restraints movesmoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzers func-tion properly?
Lights
• Do all the lights come on?
• Are the headlights aimed correctly? ( P. 6 74 )
Parking brake
• Moves smoothly?
• When parked on a slope and the
parking brake is on, is the vehicle
securely stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be dam-aged.
Seats• Do the seat controls operate prop-erly?
Steering wheel
• Does the steering wheel rotatesmoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange sounds coming from the steering
wheel.
ItemsCheck points
Page 624 of 844
624
GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
Headlight aim( P. 6 74 )• Phillips-head screwdriver
Light bulbs ( P. 6 76 )
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser ( P. 6 3 6 )
Tire inflation pressure ( P. 6 5 2 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 4 1 )
• Water or washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsPa r t s a n d t o o l s
Page 665 of 844

GS350_OM_OM30D41U_(U)
6656-3. Do-it-yourself maintenance
6
Maintenance and care
9DOME7. 5
Personal lights, ornament lights, trunk light,
footwell lights, door courtesy lights, vanity
lights, rear door inside handle illuminations,
power trunk opener and closer
10EPS80EPS
11ARS80Dynamic rear steering
12HTR50Air conditioning system
13ABS NO.140VDIM
14LUG J/B ALT50Luggage compartment junction block
15PTC NO.150PTC heater
16PTC NO.250PTC heater
17ABS NO.250VDIM
18ST30Starting system
19H-LP LO30Headlights, H-LP RLY
20D/C CUT30DOME, MPX-B
21DCM7. 5DCM
22ECU-B7. 5Smart access system with push-button start
23ALT-S7. 5Charging system
24ETCS10Multiport fuel injection system/sequential
multiport fuel injection system
25HORN10Horn
26R/B-B20EPS-B, ODS, TV
27P/ I - B N O.150Headlights, daytime running lights
28EPB30Parking brake
29LUG J/B-B40Luggage compartment junction block
30FAN NO.180Electric cooling fans
31LH J/B ALT60Left-hand junction block
32H-LP CLN30Headlight cleaner
FuseAmpereCircuit
Page 667 of 844
GS350_OM_OM30D41U_(U)
6676-3. Do-it-yourself maintenance
6
Maintenance and care*: 8-speed models
10SPARE20Spare fuse
11SPARE10Spare fuse
12H-LP LH-LO20Left-hand headlight
13H-LP RH-LO20Right-hand headlight
14WA S H - S5Driver support system
15WIP-S7. 5Windshield wipers, power management sys-
tem
16COMB SW5Windshield wipers
17TV7. 5Remote Touch screen
18EPS-B5Electric power steering
19ODS5Occupant classification system
20IG2 NO.15Power management system, DCM, CAN
gateway ECU
21GAUGE5Gauges and meters
22IG2 NO.2*5Multiport fuel injection system/sequential
multiport fuel injection system
FuseAmpereCircuit
Page 674 of 844
674
GS350_OM_OM30D41U_(U)
6-3. Do-it-yourself maintenance
Headlight aim
Adjustment bolt A
Adjustment bolt B
Make sure the vehicle has a full tank of gasoline 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.
Vertical movement adjusting bolts
Discharge headlightsLED headlights
1
2
Before checking the headlight aim
1
2
3
4
Page 675 of 844
GS350_OM_OM30D41U_(U)
6756-3. Do-it-yourself maintenance
6
Maintenance and care
Using a Phillips-head screwdriver, turn bolt A in either direction.
Remember the turning direction and the number of turns.
Turn bolt B the same number of turns and in the same direction as step
.
If the headlight cannot be adjusted using this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim.
Adjusting the headlight aim
1
Discharge headlightsLED headlights
2
1
Discharge headlightsLED headlights
Page 677 of 844
GS350_OM_OM30D41U_(U)
6776-3. Do-it-yourself maintenance
6
Maintenance and care
■Front
Vehicles with discharge headlights
Front turn signal light
Halogen fog light (if equipped)
Vehicles with LED headlights
Halogen fog light (if equipped)
Front turn signal light
Bulb locations
1
2
1
2