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GS_G_U (OM30C80U)
June 29, 2011 10:30 am
4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior.................. 430
Cleaning and protecting
the vehicle interior .................... 433
4-2. Maintenance
Maintenance
requirements............................... 436
General maintenance ............... 438
Emission inspection and
maintenance (I/M)
programs ....................................... 4414-3. Do-it-yourself maintenance
Do-it-yourself service
precautions .................................. 442
Hood ................................................. 445
Positioning a floor jack............... 446
Engine compartment.................. 448
Tires ................................................... 463
Tire inflation pressure................. 473
Wheels ............................................. 477
Air conditioning filter.................. 479
Electronic key battery ................ 482
Checking and replacing
fuses ................................................ 484
Headlight aim ............................... 509
Light bulbs ........................................ 512
5-1. Essential information
Emergency flashers ................... 520
If your vehicle needs
to be towed ................................... 521
If you think something is
wrong ............................................ 530
Fuel pump shut off system ......... 531
Event data recorder.................... 532
4Maintenance and care
5When trouble arises
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444
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the 12 volt battery.
Fuel and 12 volt battery fumes are flammable.
●Be extremely cautious when working on the 12 volt battery. It contains poisonous
and corrosive sulfuric acid.
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (P. 4 5 7 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air. Also a backfire could cause a fire in the engine compartment.
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491
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
18VGRS40VGRS
19MAIN30H-LP R LWR and H-LP L LWR
20STARTER30Starting system
21LH J/B-B30FL DOOR, RL DOOR and RAD
NO.3
22VVT40Electronic engine control system
23EPS80EPS
24ALT180
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR,
ABS MAIN1, and ABS MAIN2
25RH J/B-AM80
AM1, OBD, STOP SW, TI & TE,
PWR OUTLET, FR P/SEAT RH,
STR LOCK, ECU-IG RH, RH-IG,
ACC, CIG, SECURITY,
FR S/HTR RH and AIR SUS
26FA N 380Electric cooling fans
27LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
28ABS230ABS
29DEFFOG50Rear window defogger, noise filter
30CDS40CDS
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495
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
24RR J/B80
STOP LP R, STOP LP L, RR-B,
RR TAIL, RR FOG, RR-IG1, PSB,
and RR S/SHADE
25GLW PLG150Starting system
26RH J/B-AM80
AM1, OBD, STOP SW, TI & TE,
PWR OUTLET, FR P/SEAT RH,
STR LOCK, ECU-IG RH, RH-IG,
ACC, CIG, SECURITY,
FR S/HTR RH and AIR SUS
27ABS230ABS
28DEFFOG50Rear window defogger, noise filter
29CDS40CDS
30FA N 140Electric cooling fans
31HEATER50Air conditioning system
32GLW PLG250Starting system
33E/G-AM60H-LP CLN, FR CTRL ALT, A/C
COMP and STB-AM
34LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
35FA N 260Electric cooling fans
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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
FuseAmpereCircuit
10IG210Ignition system, noise filter and ECT
ECU
11EFI NO.210
Fuel system, exhaust system, multi-
port fuel injection system/sequential
multiport fuel injection system, elec-
tronic engine control system, leak
detection pump
12H-LP R LWR15Headlight low beam (right)
13H-LP L LWR15Headlight low beam (left)
14F/ P M P25Fuel system
15EFI25
Multiport fuel injection system/
sequential multiport fuel injection
system, ECT ECU
16INJ25
Multiport fuel injection system/
sequential multiport fuel injection
system
17H-LP UPR15Headlight high beams
18HORN10Horns
19WA S H E R20Windshield wipers and washer
20FR TAIL10Parking lights, side marker light
21FR FOG15Front fog lights
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498
4-3. Do-it-yourself maintenance
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
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
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590
6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Lubrication system
GS460
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 5W-20 or 0W-20
SAE 5W-20 or 0W-20 engine oil
may be used. However, SAE 0W-
20 is the best choice for good fuel
economy and good starting in cold
weather.
Oil capacity
Drain and refill
(Reference)
With filter
Without filter
9.1 q t . ( 8 .6 L , 7.6 I m p .q t . )
8.9 qt. (8.4 L, 7.4 Imp.qt.)
Outside temperature
Page 592 of 648
592
6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
GS350
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 5W-30
SAE 5W-30 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 5W-30 is not available,
SAE 10W-30 oil may be used.
However, it should be replaced
with SAE 5W-30 at the next oil
change.
Oil capacity
Drain and refill
(Reference)
With filter
Without filter
2WD4WD
6.6 qt. (6.3 L, 5.5 Imp.qt.)
6.2 qt. (5.9 L, 5.2 Imp.qt.)
6.7 qt. (6.4 L, 5.6 Imp.qt.)
6.3 qt. (6.0 L, 5.3 Imp.qt.)
Outside temperature