2021 LEXUS LS500 fuses

4TABLE OF CONTENTS
Trunk features................................349
5-6. Using the other interior features Other interior features .............. 352
Garage door opener.................. 360
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 368
Cleaning and protecting the vehi- cle interior ..................................... 371
6-2. Maintenance Maintenance requirements ..... 374
General maintenance ................ 375
Emission inspection and mainte- nance (I/M) programs ............ 378
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 379
Hood................................................... 381
Positioning a floor jack................ 381
Engine compartment.................. 383
Battery ............................................... 391
Tires ................................................... 393
Replacing the tire ......................... 402
Tire inflation pressure ................. 406
Wheels.............................................. 407
Air conditioning filter..................409
Electronic key battery ................. 410
Checking and replacing fuses ............................................................ 412
Headlight aim.................................. 415
Light bulbs ........................................ 4167-1. Essential information
Emergency flashers ..................... 418
If your vehicle has to be stopped in an emergency ............................. 418
If the vehicle is trapped in rising water ............................................... 419
7-2. Steps to take in an emergency If your vehicle needs to be towed............................................................ 421
If you think something is wrong .......................................................... 425
Fuel pump shut off system ........ 426
If a warning light turns on or a warn- ing buzzer sounds...................... 427
If a warning messa ge is displayed
.......................................................... 436
If you have a flat tire .................... 438
If the engine will not start .......... 439
If you lose your keys...................... 441
If the fuel filler door cannot be opened ............................................ 441
If the electronic key does not oper- ate properly .................................. 442
If the vehicle battery is discharged .......................................................... 444
If your vehicle overheats ........... 449
If the vehicle becomes stuck ... 452
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 456
Fuel information .

........................... 465
6Maintenance and care
7When trouble arises
8Vehicle specifications

367
6
6
Maintenance and care
Maintenance and care
.6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 368
Cleaning and protecting the vehi- cle interior .................................. 371
6-2. Maintenance Maintenance requirements .. 374
General maintenance ............. 375
Emission inspection and mainte- nance (I/M) programs ......... 378
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 379
Hood................................................ 381
Positioning a floor jack............. 381
Engine compartment............... 383
Battery ............................................ 391
Tires ................................................ 393
Replacing the tire ...................... 402
Tire inflation pressure .............. 406
Wheels........................................... 407
Air conditioning filter...............409
Electronic key battery .............. 410
Checking and replacing fuses ......................................................... 412
Headlight aim............................... 415
Light bulbs ..................................... 416

3796-3. Do-it-yourself maintenance
6
Maintenance and care
6-3.Do-it-yourself maintenance
Do-it-yourself service pre-
cautions
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.
Maintenance
ItemsParts and tools
Battery condition
( P.391)
•Grease
• Conventional
wrench (for terminal
clamp bolts)
Brake fluid level
( P.389)
• FMVSS No.116 DOT
3 or SAE J1703
brake fluid
FMVSS No.116 DOT
4 or SAE J1704
brake fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/inter-
cooler coolant
level ( P.388)
•“Toyota Super Long
Life Coolant” or a
similar high quality
ethylene gly-
col-based non-sili-
cate, non-amine,
non-nitrite and
non-borate coolant
with long-life hybrid
organic acid tech-
nology
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 Coolant” is
pre-mixed with 55%
coolant and 45%
deionized water.
•Funnel (used only for adding coolant)
Engine oil level
( P.386)
•“Toyota Genuine
Motor Oil” or equiv-
alent
• Rag or paper towel
•Funnel (used only for adding engine oil)
Fuses ( P.412)
•Fuse with same
amperage rating as
original
Headlight aim
( P.415)• Phillips-head screw-
driver
ItemsParts and tools

4126-3. Do-it-yourself maintenance
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment: type A fuse
box
Remove the service cover ( P.385) and
push the tabs in an d lift the lid off.
Engine compartment: type B fuse
box
Remove the engine compartment cover
( P.384) and push the ta bs in and lift the
lid off.
NOTICE
●Always work with dry hands.
Moisture may cause the battery to
rust.
●Do not touch or move any other com-
ponent inside the remote control.
●Do not bend either of the battery ter-
minals.
Checking and replacing
fuses
If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.
Checking and replacing fuses

4146-3. Do-it-yourself maintenance
Type ANormal fuse
Blown fuse
Type B
Normal fuse
Blown fuse
Type CNormal fuse
Blown fuse
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure that the
tab is installed securely.
●If the lights do not turn on even after the
fuse has been replaced, a bulb may need
replacement.
●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.
A
B
A
B
A
B
WARNING
■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.
A
B

4156-3. Do-it-yourself maintenance
6
Maintenance and care
Adjustment bolt A
Adjustment bolt B
1 Make sure the vehicle has a full
tank of gasoline and the area
around the headlight is not
deformed.
2 Park the vehicle on level ground.
3 Sit in the driver’s seat.
4 Bounce the vehicle several times.
1 Using a phillips-head screwdriver,
turn bolt A in either direction.
Remember the turning direction and the
NOTICE
■Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible.
Headlight aim
Vertical movement adjusting
bolts
Before checking the headlight
aim
Adjusting the headlight aim
A
B

511Alphabetical Index
Seat heaters .................................................. 336
Seat position memory ...............................133
Seat ventilators............................................ 336
Front side marker light Light switch .................................................... 190
Replacing light bulbs..................................416
Front turn signal lights Replacing light bulbs..................................416
Turn signal lever .......................................... 185
Fuel Capacity ......................................................... 457
Fuel gauge .............................................. 75, 78
Fuel pump shut off system .................... 426
Information ....................................................465
Refueling ........................................................200
Type.................................................................. 457
Warning light ...............................................430
Fuel consumption Average fuel economy .............................. 84
Current fuel consumption........................ 84
Fuel filler door If the fuel filler door cannot be opened........................................................................... 441
Refueling ........................................................200
Fuel gauge ................................................. 75, 78
Fuel pump shut off system........................ 426
Fuses ................................................................... 412
G
Garage door opener ................................. 360
Gauges ....................................................... 75, 78
Gear Position................................................... 86
G-force............................................................... 86
Glove box ....................................................... 345
Glove box light ............................................. 346
H
Hands Free Power Trunk Lid .................. 109
Head restraints .............................................. 138
Headlight aim ..................................................415 Headlights
Adaptive Front-lighting System (AFS)............................................................................192
Automatic High Beam system ............. 193
Light switch .................................................... 190
Replacing light bulbs ................................. 416
Head-up display.............................................. 89 Driving information display area ...........89
Driving support system display area .. 92
Eco Driving Indicator.................................. 93
HUD (Head-up display) switch ..............91
Navigation system-linked display ........89
Pop-up display ............................................... 92
Settings.................................................................91
Heated steering wheel .............................. 336
Heaters Front automatic air conditioning system.......................................................................... 323
Heated steering wheel ............................336
Outside rear view mirrors..................... 324
Rear automatic air conditioning system
..........................................................................333
Seat heaters ..................................................336
Height control Electronically modulated air suspension..........................................................................302
Hill-start assist control ............................... 304
Hood Open................................................................. 381
Pop Up Hood................................................. 37
Hooks Coat hooks ...................................................353
Retaining hooks (floor mat) ..................... 22
Horn ..................................................................... 141
HUD (Head-up display) switch .................. 91
I
I/M test ............................................................ 378
Identification Engine.............................................................. 457
Vehicle ........................................................... 456

515Alphabetical Index
Power trunk opener and closer ............. 108
Power windowsDoor lock linked window operation..154
Jam protection function............................153
Operation........................................................153
Window lock switch ................................. 155
Pre-Collision System (PCS) Function ................................................ 215, 227
PCS OFF switch ........................................ 230
Warning light ............................................... 432
R
Radar cruise control (dynamic radar cruise control with full-speed range)... 251, 254
Radiator ........................................................... 389
RCD (Rear camera detection) ................ 271 Function ............................................................281
Warning message..................................... 282
RCTA Function ...........................................................277
Warning message..................................... 278
RCTA (Rear Cross Traffic Alert) ........... 271
Rear automatic air conditioning system .......................................................................... 333
Rear Cross Traffic Alert (RCTA) ..........277
Rear door sunshades ................................. 356
Rear Multi Operation Panel .................... 318
Rear seat position memory ....................... 137
Rear seats .........................................................128 Adjustment......................................................128
Head restraints ............................................ 138
Rear seat position memory .................... 137
Relaxation system......................................... 131
Seat heaters .................................................. 336
Seat ventilators............................................ 336
Rear side marker lights Light switch .................................................... 190
Replacing light bulbs..................................416
Rear sunshades ............................................358
Rear turn signal lights Replacing light bulbs..................................416
Turn signal lever .......................................... 185 Rear view mirror
Digital Rearview Mirror ............................143
Inside rear view mirror ..............................142
Outside rear view mirrors........................ 151
Rear window defogger ............................. 324
Refueling Capacity ......................................................... 457
Fuel types ....................................................... 457
If the fuel filler do or cannot be opened
............................................................................441
Opening the fuel tank cap ................... 200
Remote Touch ................................................314
Replacing Electronic key battery ............................... 410
Fuses...................................................................412
Light bulbs ...................................................... 416
Tires ..................................................................402
Resetting the message indicating mainte- nance is required ...................................... 374
Rev indicator .................................................... 80
Rev peak............................................................. 80
Road Sign Assist ............................................251
RSA (Road Sign Assist) ..............................251
Run-flat tires....................................... 395, 438
S
Seat belt buckle lights ................................ 340
Seat belt reminder light................... 430, 431
Seat belts............................................................ 24 Active Assist .................................................... 28
Automatic Locking Retractor................. 26
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt............................................................................371
Easy Access Buckle .................................... 26
Emergency Locking Retractor .............. 26
How to wear your seat belt ..................... 25
How your child should wear the seat belt ............................................................................. 25
Pregnant women, proper seat belt use ............................................................................. 24
Reminder light and buzzer ........ 430, 431