2015 Lexus GS450h fuses

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GS450h_OM_OM30F70U_(U)
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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 423
Hood ............................................... 426
Positioning a floor jack..............427
Engine compartment ............... 429
12-volt battery ............................. 439
Tires.................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery.............. 460
Checking and replacing fuses.............................................. 462
Headlight aim ............................... 477
Light bulbs .....................................479
7-1. Essential information Emergency flashers .................. 494
If your vehicle has to be stopped in an emergency.... 495 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 496
If you think something is wrong ................ 502
If a warning light turns on or a warning buzzer sounds..... 503
If a warning message is displayed ..................................513
If you have a flat tire ....................541
If the hybrid system will not start ............................... 554
If the shift lever cannot be shifted from P ..................... 556
If the parking brake cannot be released .................................557
If the electronic key does not operate properly ..................... 559
If the 12-volt battery is discharged............................. 562
If your vehicle overheats ......... 566
If the vehicle becomes stuck ............................................... 571
7When trouble arises

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GS450h_OM_OM30F70U_(U)
6Maintenance and care
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 408
Cleaning and protecting the vehicle interior ................... 412
6-2. Maintenance Maintenance requirements .... 415
General maintenance ............... 418
Emission inspection and maintenance (I/M)
programs .................................... 422 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ................................ 423
Hood ............................................... 426
Positioning a floor jack ..............427
Engine compartment ............... 429
12-volt battery.............................. 439
Tires .................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery ..............460
Checking and replacing fuses .............................................. 462
Headlight aim ...............................477
Light bulbs..................................... 479

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GS450h_OM_OM30F70U_(U)
6-3. Do-it-yourself maintenance
Fuses( P. 4 6 2 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 7 7 )• Phillips-head screwdriver
Light bulbs ( P. 4 7 9 )
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser ( P. 4 3 6 )
Tire inflation pressure ( P. 4 5 3 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 4 3 8 )
• 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

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GS450h_OM_OM30F70U_(U)
6-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the power switch off.
After a system failure, see “Fuse layout and amperage ratings” for
details about which fuse to check. ( P. 466)
Open the fuse box cover.
Engine compartment
Remove the engine compart-
ment cover ( P. 430) and
remove all of the clips.
Push the tabs on either side to
detach the lock and lift the lid off
while pulling the lock plate.
When installing the lid, check that
the lock plate and the tabs on either
side are connected correctly.
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
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GS450h_OM_OM30F70U_(U)
4756-3. Do-it-yourself maintenance
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Maintenance and care
■The upper part of the 12-volt battery*
*
: When one or more of the fuses in this unit are blown, the unit needs to be replaced as a whole.
FuseAmpereCircuit
1EPB30Parking brake
2LUG-J/B BATT40Luggage compartment junction block
3EPS80Electric power steering
4ARS80Dynamic rear steering
5MAIN220Engine compartment junction block

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GS450h_OM_OM30F70U_(U)
6-3. Do-it-yourself maintenance
■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. 4 7 9 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexu s products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-
genuine parts or parts not designed for this vehicle may be unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that 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.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.

639Alphabetical index
GS450h_OM_OM30F70U_(U)
First-aid kit storage net ...................... 373
Flat tire ........................................................541
Floor mats ................................................... 28
FluidBrake ......................................................... 581
Hybrid transmission......................... 580
Washer .................................................. 438
Fog lights .................................................. 222 Replacing light bulbs .............481, 489
Switch....................................................... 222
Wattage ................................................. 583
Footwell light .......................................... 363
Front passenger occupant classification system ............................ 49
Front personal lights............................ 364
Front seats ................................................ 150 Adjustment ............................................. 150
Cleaning ...................................................412
Correct driving posture ....................30
Driving position memory ................ 152
Head restraints ..................................... 158
Power easy access system ............ 152
Seat heaters ......................................... 382
Seat position memory....................... 152
Seat ventilators ................................... 382
Front side marker lights ....................... 217 Light switch ............................................. 217
Replacing light bulbs ....................... 489
Welcome light illumination control ....................................................123
Front turn signal lights ........................ 209 Replacing light bulbs ....................... 483
Turn signal lever ................................ 209
Wattage ................................................. 583 Fuel............................................................. 230
Capacity................................................. 576
Fuel gauge ................................................. 91
Information............................................584
Refueling ................................................ 230
Type..............................................230, 576
Warning light ...................................... 506
Warning messages ..........................528
Fuel consumption Average fuel consumption .............. 98
Average fuel consumption after refueling .......................................97
Current fuel consumption.................97
Fuel filler door........................................ 230 Refueling ................................................ 230
When the fuel filler door cannot be opened ......................... 233
Fuses...........................................................462
Garage door opener.......................... 393
Gauges.......................................................... 91
Glove box ............................................... 368
Glove box light...................................... 368
F
G

645Alphabetical index
GS450h_OM_OM30F70U_(U)
Pre-Collision System (PCS) ............ 290Function ................................................. 290
PCS OFF switch ................................ 292
Warning light ...................................... 505
Warning message .......................515, 526, 532
Radar cruise control (dynamic radar cruise control) ........................ 239
Radiator .................................................... 436
Radio
*
RBDS (Radio Broadcast Data Systems)
*
Rear air conditioning system ........... 355
Rear door sunshades ..........................388
Rear personal lights............................. 364
Rear side marker lights ........................ 217 Light switch ............................................. 217
Replacing light bulbs ....................... 489
Welcome light illumination cont rol ..........................123
Rear seat heaters.................................. 382
Rear sunshade ....................................... 387 Operation ..............................................387
Reverse operation feature............ 388 Rear turn signal lights ......................... 209
Replacing light bulbs ....................... 487
Turn signal lever ................................. 209
Wattage .................................................583
Rear view mirror Inside rear view mirror...................... 162
Outside rear view mirrors ..............164
Rear view monitor system
*
Rear window defoggers .................... 360
Refueling.................................................. 230 Capacity................................................. 576
Fuel types............................................... 576
Opening the fuel tank cap ............ 232
When the fuel filler door cannot be opened ......................... 233
Regenerative braking............................. 74
Remote Touch
*.....................................326
Replacing Electronic key battery .....................460
Fuses ........................................................ 462
Light bulbs............................................. 479
Tires ............................................................541
Reporting safety defects for U.S. owners .................................... 612
Resetting the message indicating maintenance is required .................. 416
Road accident cautions ......................... 79
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.