2018 Lexus ES300h fuses

TABLE OF CONTENTS6
ES300h_OM_OM33D45U_(U)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 430
Cleaning and protecting the vehicle interior.................. 433
7-2. Maintenance Maintenance requirements ............................ 436
General mainte nance.............. 439
Emission inspection and maintenance (I/M)
programs.................................... 442
7-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 443
Hood ............................................... 445
Positioning a floor jack ............ 446
Engine compartment ............... 447
12-volt battery ............................. 457
Tires ...................................................461
Tire inflation pressure ................ 471
Wheels ........................................... 474
Air conditioning filter ............... 476
Electronic key battery.............. 478
Checking and replacing fuses..............................................480
Light bulbs .................................... 483 8-1. Essential information
Emergency flashers .................. 496
If your vehicle has to be stopped in an emergency ... 497
8-2. Steps to take in an emergency If your vehicle needs to be towed ............................... 498
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 ................................ 509
If you have a flat tire ....................513
If the hybrid system will not start ............................................... 523
If the electronic key does not operate properly..................... 525
If the 12-volt battery is discharged................................. 527
If your vehicle overheats...........531
If the vehicle becomes stuck ............................................. 535
7Maintenance and care8When trouble arises

429
ES300h_OM_OM33D45U_(U)
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................430
Cleaning and protecting the vehicle interior.................. 433
7-2. Maintenance Maintenance requirements ............................ 436
General maintenance.............. 439
Emission inspection and maintenance (I/M)
programs .................................... 442
7-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 443
Hood ............................................... 445
Positioning a floor jack ............ 446
Engine compartment ............... 447
12-volt battery ............................. 457
Tires .................................................. 461
Tire inflation pressure.................471
Wheels ........................................... 474
Air conditioning filter ............... 476
Electronic key battery .............. 478
Checking and replacing fuses ............................................. 480
Light bulbs.....................................483

443
ES300h_OM_OM33D45U_(U)7-3. Do-it-yourself maintenance
7
Maintenance and care
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsParts and tools
12-volt battery con-
dition (
→P. 457)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(→ P. 455)
• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power con-
trol unit coolant level
(→ P. 453)
• “Toyota Super Long Life Coolan t” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool ant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( → P. 449)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( →P. 480)• Fuse with same amperage rating as original
Light bulbs
(→ P. 483)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver
• Flathead screwdriver•Wrench
Radiator and con-
denser (→ P. 454)⎯
Tire inflation pres-
sure (→P. 471)• Tire pressure gauge• Compressed air source
Washer fluid
(→ P. 456)• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

480
ES300h_OM_OM33D45U_(U)7-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the power switch off.
Open the Fuse box cover.
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and repl
ace the fuses as necessary.
1
2
Engine compartment (right side)Engine compartment (left side)
Push the tab in and lift the lid off. Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.

482
ES300h_OM_OM33D45U_(U)7-3. 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. 483)
●If the replaced fuse blows again, have th e 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 Lexus products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e 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.

593Alphabetical index
ES300h_OM_OM33D45U_(U)
Enhanced VSC ......................................272
EPS (Electronic Po wer Steering)
Function .................................................. 273
Warning light ...................................... 504
EV drive mode......................................... 173
Event data recorder (EDR) .................... 11
Flat tire ....................................................... 513
Floor mats ................................................... 28
Fluid Brake ........................................................544
Hybrid transmission..........................544
Washer .................................................. 456
Fog lights Switch........................................................ 189
Footwell light .......................................... 396
Front passenger occupant classification system ............................ 46
Front personal lights............................ 397
Front seats Adjustment ............................................. 129
Cleaning .................................................433
Correct driving posture ....................30
Driving position memory ................ 130
Head restraints ..................................... 135
Power easy access system ............ 130
Seat heaters ......................................... 395
Seat position memory....................... 130
Seat ventilators ................................... 395 Front side marker lights
Light switch.............................................182
Replacing light bulbs .......................489
Wattage ................................................. 546
Front turn signal lights Replacing light bulbs ....................... 487
Turn signal lever .................................. 180
Wattage ................................................. 546
Fuel Capacity.................................................540
Fuel gauge ............................................... 86
Information............................................ 547
Refueling ..................................................194
Type..........................................................540
Warning light .......................................504
Fuel filler door.......................................... 194 Refueling ..................................................194
When the fuel filler door cannot be opened ...........................196
Fuses.......................................................... 480
Garage door opener..............................411
Gauges........................................................ 86
Glove box ............................................... 400
Grocery bag hooks............................. 403
F
G

599Alphabetical index
ES300h_OM_OM33D45U_(U)
Rear turn signal lightsReplacing light bulbs ....................... 490
Turn signal lever ..................................180
Wattage ................................................. 546
Rear view mirror Inside rear view mirror ..................... 140
Outside rear view mirrors ...............142
Rear window defoggers ....................388
Refueling ....................................................194 Capacity ................................................ 540
Fuel types .............................................. 540
Opening the fuel tank cap.............. 196
When the fuel filler door cannot be opened .......................... 196
Regenerative braking ............................ 69
Remote Touch
*
Replacing Electronic key battery ......................478
Fuses........................................................ 480
Light bulbs ............................................ 483
Tires ........................................................... 513
Reporting safety defects for U.S. owners................................... 574
Resetting the message indicating maintenance is required ................ 437
Road accident cautions .........................74 Safety Connect ......................................422
Seat belts
Adjusting the seat belt.........................32
Automatic Locking Retractor ........ 33
Child restraint system installation ............................................. 60
Cleaning and maintaining the seat belt ....................................... 434
Emergency Locking Retractor................................................ 33
How to wear your seat belt..............32
How your child should wear the seat belt .......................................... 33
Pregnant women, proper seat belt use ......................................... 34
Reminder light and buzzer ...........504
Seat belt extender ................................ 34
Seat belt pretensioners...................... 33
SRS warning light ..............................503
Seat heaters............................................ 395
Seat position memory ..........................130
Seat ventilators...................................... 395
Seating capacity ..................................... 165
S
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.