2019 LEXUS UX250H fuses

4TABLE OF CONTENTS
Compass...........................................317
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 322
Cleaning and protecting the vehi- cle interior .................................... 325
6-2. Maintenance Maintenance requirements ..... 328
General maintenance ................ 329
Emission inspection and mainte- nance (I/M) programs ............. 331
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 333
Hood.................................................. 335
Positioning a floor jack............... 336
Engine compartment.................. 337
12-volt battery................................ 342
Tires ................................................... 345
Replacing the tire ......................... 355
Tire inflation pressure .................. 361
Wheels.............................................. 363
Air conditioning filter..................364
Cleaning the hybrid battery (trac- tion battery) air intake vent and fil-
ter..................................................... 365
Electronic key battery ................ 368
Checking and replacing fuses 370
Headlight aim................................. 372
Light bulbs ....................................... 3747-1. Essential information
Emergency flashers .................... 378
If your vehicle has to be stopped in an emergency ............................ 378
If the vehicle is trapped in rising water .............................................. 379
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 381
If you think something is wrong .......................................................... 385
If a warning light turns on or a warn- ing buzzer sounds..................... 386
If a warning messa ge is displayed
.......................................................... 395
If you have a flat tire .................... 399
If the hybrid syst em will not start
.......................................................... 400
If you lose your keys.................... 402
If the fuel filler door cannot be opened .......................................... 402
If the electronic key does not oper- ate properly ................................. 403
If the 12-volt battery is discharged .......................................................... 405
If your vehicle overheats ............ 410
If the vehicle becomes stuck ..... 413
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................................. 416
Fuel information............................ 423
Tire inform

ation ............................ 425
6Maintenance and care
7When trouble arises
8Vehicle specifications

321
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 322
Cleaning and protecting the vehi- cle interior ................................. 325
6-2. Maintenance Maintenance requirements .. 328
General maintenance ............. 329
Emission inspection and mainte- nance (I/M) programs .......... 331
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 333
Hood............................................... 335
Positioning a floor jack............ 336
Engine compartment............... 337
12-volt battery............................. 342
Tires ................................................ 345
Replacing the tire ...................... 355
Tire inflation pressure ............... 361
Wheels........................................... 363
Air conditioning filter...............364
Cleaning the hybrid battery (trac- tion battery) air intake vent and
filter .............................................. 365
Electronic key battery ............. 368
Checking and replacing fuses ........................................................ 370
Headlight aim.............................. 372
Light bulbs .................................... 374

3336-3. 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
12-volt bat-
tery condition
( P.342)•Grease
•Conventional wrench
(for terminal clamp
bolts)
Brake fluid
level
( P.341)
• 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/power
control unit
coolant level
( P.339)
•“Toyota Super Long Life
Coolant” or a similar
high quality ethylene gly-
col-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
Coolant” is pre-mixed
with 55% coolant and
45% deionized water.
• Funnel (used only for adding coolant)
Hybrid battery
(traction bat-
tery) air intake
vent
( P.365)
• Vacuum cleaner, etc.
• Phillips screwdriver
Engine oil
level
( P.337)
•“Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P.370)• Fuse with same amper-
age rating as original
Light bulbs
( P.374)•Bulb with same number
and wattage rating as
original
Headlight aim• Phillips-head screw-driver
Radiator and
condenser
( P.340)

ItemsParts and tools

3706-3. Do-it-yourself maintenance
1Turn the power switch off.
2 Open the fuse box cover.
Engine compartment: type A fuse
box
Push the tab in and lift the lid off.
Engine compartment: type B fuse
box
Push the tab in and lift the lid off.
Left side instrument panel
Remove the lid.
Luggage compartment
Remove the 12-volt battery cover
( P.343) and push the tab in and lift the
lid off.
3 Remove the fuse.
Only type A fuse can be removed using the
pullout tool.
4Check if the fuse is blown.
Replace the blown fuse with a new fuse of
an appropriate amperage rating. The
amperage rating can be found on the fuse
box lid.
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

3716-3. Do-it-yourself maintenance
6
Maintenance and care
Type ANormal fuse
Blown fuse
Type BNormal 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. ( P.374)
●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
Lexus products designed for this vehicle.
Because certain bulbs are connected to cir-
cuits designed to prevent overload, non-
genuine parts or parts not designed for this
vehicle may be unusable.
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.
A
B

3726-3. Do-it-yourself maintenance
Single-beam headlightsAdjustment bolt A
Adjustment bolt B
Triple-beam headlightsAdjustment bolt A
Adjustment bolt B
 Make sure the vehicle has a full tank
of gasoline and the area around the
headlight is not deformed.
 Park the vehicle on level ground.
 Make sure the tire inflation pressure
WARNING
●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.
■Fuse box near the power control unit
Never check or replace the fuses as
there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock,
resulting in death or serious injury.
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
A
B
A
B

466Alphabetical Index
Emergency flashers .................................... 378
Energy monitor ................................................97
EngineACC ..................................................................164
Compartment ............................................. 337
Hood................................................................335
How to start the hybrid system ............ 162
Identification number ................................. 417
If your vehicle has to be stopped in an
emergency ................................................ 378
Ignition switch (power switch) .............. 162
Overheating.................................................. 410
Power switch ................................................. 162
Tachometer ............................................ 78, 82
Engine coolant.............................................. 339 Capacity ...........................................................419
Checking ....................................................... 339
Preparing and checking before winter......................................................................... 263
Engine coolant temperature gauge78, 82
Engine oil Capacity .......................................................... 418
Checking ....................................................... 337
Warning light ...............................................386
Engine oil maintenance data .................. 339
EPS (Electric Power Steering) .............. 257 Function .......................................................... 257
Warning light .............................................. 388
EV drive mode................................................165
Event data recorder (EDR) ........................... 8
EV indicator ...................................................... 63
F
Flat tire ............................................................. 399 Tire pressure warning system .............348
Floor mats .......................................................... 24
Fluid Brake.................................................................. 421
Hybrid transmission ................................. 420
Washer ............................................................. 341
Fog lights Replacing light bulbs................................ 374 Switch................................................................ 183
Front passenger occupant classification system .............................................................. 39
Front seats ......................................................... 131 Adjustment ....................................................... 131
Cleaning .........................................................325
Correct driving posture ............................ 25
Driving position memory ........................ 133
Head restraints............................................. 136
Memory recall function............................ 135
Power easy access system .................... 133
Seat heaters ..................................................287
Seat position memory .............................. 133
Seat ventilators ............................................287
Front side marker lights Light switch ..................................................... 177
Front turn signal lights Replacing light bulbs ................................375
Turn signal lever ............................................ 171
Wattage .......................................................... 422
Fuel Capacity ...........................................................417
Fuel gauge ............................................... 78, 82
Information .................................................... 423
Refueling.......................................................... 190
Type ....................................................................417
Warning light .............................................. 390
Fuel consumption Average fuel economy ..............................89
Current fuel consumption ........................89
Fuel filler door ................................................ 190 Refueling.......................................................... 190
When the fuel filler door cannot be
opened.........................................................402
Fuel gauge ................................................. 78, 82
Fuses ................................................................. 370
G
Garage door opener .................................... 311
Gauges ....................................................... 78, 82
G-force............................................................... 90
Glove box ....................................................... 294

470Alphabetical Index
Parking brake engaged warning buzzer........................................................................... 174
Warning light ...............................................389
Warning message....................................... 174
Parking lights Light switch ..................................................... 177
Replacing light bulbs................................ 374
Parking Support Brake function (rear- crossing vehicles) .......................... 243, 252Function .......................................................... 252
Parking Support Brake function (static objects) .............................................. 243, 247Function .......................................................... 247
PCS (Pre-Collision System) .................... 198 Function ........................................................... 198
PCS OFF switch ........................................200
Warning light ............................................... 392
Personal lights............................................... 290
PKSA (Parking Support Alert) ................231
PKSB (Parking Support Brake)............. 243 Warning message..................................... 246
Power back door open er and closer ..... 115
Power control unit coolant ...................... 339 Capacity ...........................................................419
Checking ....................................................... 339
Preparing and checking before winter......................................................................... 263
Power easy access system ........................133
Power outlets ................................................ 302
Power steering (Electric Power Steering system).......................................................... 257Warning light .............................................. 388
Power switch ................................................... 162 Auto power off function ...........................164
Changing the power switch modes ..164
If your vehicle has to be stopped in an
emergency ................................................ 378
Starting the hybrid system....................... 162
Power windows ..............................................145 Door lock linked window operation..146
Jam protection function............................145
Operation........................................................145 Window lock switch.................................. 146
Pre-Collision System (PCS) .................... 198 Function ........................................................... 198
PCS OFF switch ....................................... 200
Warning light ...............................................392
R
Radar cruise control (dynamic radar cruise control with full-speed range)...............216
Radiator ........................................................... 340
RCTA (Rear Cross Traffic Alert) 231, 239
RCTA Function ..........................................................239
Warning message .....................................240
Rear Cross Traffic Alert (RCTA) 231, 239
Rear seat Folding down the rear seatbacks ........132
Rear side marker lights Light switch ..................................................... 177
Rear turn signal lights Replacing light bulbs ................................ 374
Turn signal lever ............................................ 171
Rear view mirror Inside rear view mirror ............................. 140
Outside rear view mirrors.......................142
Rear window defogger ..............................277
Rear window wiper...................................... 188
Refueling .......................................................... 190 Capacity ...........................................................417
Fuel types .........................................................417
Opening the fuel tank cap ..................... 190
When the fuel filler door cannot be
opened.........................................................402
Regenerative braking ................................... 63
Remote Touch .............................................. 270
Replacing Electronic key battery ............................. 368
Fuses.................................................................370
Light bulbs ..................................................... 374
Tires ................................................................. 355
Resetting the message indicating mainte- nance is required ...................................... 328