fuse box LEXUS LS500H 2019 Owners Manual

3846-3. Do-it-yourself maintenance
LS500h_OM_(U)_1809
Engine oil level dipstick (P.385)
Power control unit coolant reservoir ( P.387)
Engine coolant reservoir ( P.387)
Engine oil filler cap ( P.386)
Brake fluid reservoir ( P.388)
Fuse boxes ( P.411)
Washer fluid tank ( P.389)
Engine coolant radiator ( P.388)
Power control unit coolant radiator ( P.388)
Electric cooling fan
Condenser ( P.388)
■12-volt battery
 P.390
Engine compartment
Components
A
B
C
D
E
F
G
H
I
J
K

4116-3. Do-it-yourself maintenance
LS500h_OM_(U)_1809
6
Maintenance and care
1 Turn the power switch off.
2 Open the fuse box cover.
Engine compartment: type A fuse
box
Push the tabs in and lift the lid off.
Engine compartment: type B fuse
box
Remove the engine compartment cover
( P.385) and push the tabs in and lift the
lid off.
Driver’s side instrument panel
Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.
Passenger’s side instrument panel
Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.
Trunk
Remove the luggage mat. ( P.350)
Push the tab in and lift the lid off.
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

4126-3. Do-it-yourself maintenance
LS500h_OM_(U)_1809
3Remove the fuse with the pullout
tool.
Only type A fuse can be removed
using the pullout tool.
4 Check if the fuse is blown.
Type A and B:
Replace the blown fuse with a new fuse of
an appropriate amperage rating. The
amperage rating can be found on the fuse
box lid.
Type C and D:
Contact your Lexus dealer.
Type A
Normal fuse
Blown fuse
Type B
Normal fuse
Blown fuse
Type CNormal fuse
Blown fuse
A
B
A
B
A
B

4136-3. Do-it-yourself maintenance
LS500h_OM_(U)_1809
6
Maintenance and care
Type D Normal 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.
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
NOTICE
■Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible.

4467-2. Steps to take in an emergency
LS500h_OM_(U)_1809
4Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery of your
vehicle.
5 Open and close any of the doors of
your vehicle with the power switch
off.
6 Maintain the engine speed of the
second vehicle and start the hybrid
system of your vehicle by turning
the power switch to ON mode.
7 Make sure the “READY” indicator
comes on. If the indicator does not
come on, contact your Lexus
dealer.
8 Once the hybrid system has
started, remove the jumper cables
in the exact reverse order from
which they were connected.
Method connecting jumper (or
booster) cables to the exclusive
jump starting terminal
1 Confirm that the electronic key is
being carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked. (
 P.74)
2 Open the hood. Remove the driver
side engine compartment cover
and fuse box cover. ( P.382,
385)
Push the tabs in and lift the lid off.
3 Open the exclusive jump starting
terminal cover.
4 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cab le to on the second vehicle. Then,
A
B

4477-2. Steps to take in an emergency
LS500h_OM_(U)_1809
7
When trouble arises
connect a negative cable clamp to on the second vehicle and connect the
clamp at the other end of the negative cable to .
Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic point away from the exclusive jump starting
terminal and any mo ving parts as shown in the illustration
5 Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery of your
vehicle.
6 Open and close any of the doors of
your vehicle with the power switch
off.
7 Maintain the engine speed of the
second vehicle and start the hybrid
system of your vehicle by turning
the power switch to ON mode.
8 Make sure the “READY” indicator
comes on. If the indicator does not
come on, contact your Lexus
dealer. 9
Once the hybrid system has
started, remove the jumper cables
in the exact reverse order from
which they were connected.
10 Close the exclusive jump starting
terminal cover and install the fuse
box cover and engine compart-
ment cover.
Once the hybrid system starts, have
the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the hybrid system when the
12-volt battery is discharged
The hybrid system cannot be started by
push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio sys-
tem while the hybrid system is off.
C
D
A
B
C
D

5131-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809513Alphabetical Index
Fuel gauge ............................................... 81, 85
Information ....................................................468
Refueling .......................................................... 197
Type..................................................................459
Warning light ............................................... 427
Fuel consumption Average fuel economy .............................. 92
Current fuel consumption........................ 92
Fuel filler door If the fuel filler door cannot be opened......................................................................... 442
Refueling .......................................................... 197
Fuel gauge .................................................. 81, 85
Fuses .................................................................... 411
G
Garage door opener ................................. 360
Gauges ........................................................ 81, 85
Gear Position................................................... 93
G-force............................................................... 93
Glove box ....................................................... 346
Glove box light ............................................. 347
H
Hands Free Power Trunk Lid .................... 119
Head restraints ............................................... 147
Headlights Adaptive Front-lighting System (AFS).......................................................................... 189
Automatic High Beam system............. 190
Light switch .....................................................187
Replacing light bulbs.................................. 414
Head-up display.............................................. 96 Driving information display area........... 96
Driving support system display area .. 99
HUD (Head-up display) switch............ 98
Hybrid System Indicator ......................... 100
Navigation system-linked display ........ 96
Pop-up display............................................... 99
Settings .............................................................. 98
Heated steering wheel .............................. 337 Heaters
Front automatic air conditioning system.......................................................................... 323
Heated steering wheel ............................ 337
Outside rear view mirrors..................... 324
Rear automatic air conditioning system
..........................................................................334
Seat heaters .................................................. 337
Height control Electronically modulated air suspension..........................................................................299
High-voltage components ......................... 66
Hill-start assist control ............................... 302
Hood Open................................................................382
Pop Up Hood.................................................38
Hooks Coat hooks ...................................................354
Retaining hooks (floor mat) ..................... 22
Horn ................................................................... 150
HUD (Head-up display) switch ................ 98
Hybrid battery (traction battery) Location ............................................................. 66
Specification ................................................ 460
Warning message ........................................ 69
Hybrid battery (traction battery) air vents ............................................................................. 69
Hybrid system .................................................. 63 Emergency shut off system...................... 69
Energy monitor/consumption screen100
EV drive mode..............................................174
High voltage components ....................... 66
Hybrid system precautions...................... 66
If the hybrid system will not start ....... 440
Overheating .................................................. 451
Power (ignition) switch ............................ 170
Regenerative braking ................................. 64
Starting the hybrid system ...................... 170
Vehicle proximity noti fication system.65
Hybrid System Indicator........... 82, 87, 100
Hybrid transmission...................................... 176 M mode ............................................................. 181