interior LEXUS UX250H 2019 Repair Manual

3306-2. Maintenance
Luggage compartment
ItemsCheck points
12-volt batteryCheck the connections.
( P.342)
Vehicle interior
ItemsCheck points
Accelerator
pedal
• The accelerator pedal
should move smoothly
(without uneven pedal
effort or catching).
Brake pedal
• Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clear-
ance from the floor?
• Does the brake pedal have the correct amount
of free play?
Brakes
•The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the
floor when the brakes
are applied.
Head
restraints• Do the head restraints move smoothly and lock
securely?
Hybrid trans-
mission “Park”
mechanism• When parked on a slope and the shift lever is in P,
is the vehicle securely
stopped?
Indica-
tors/buzzers• Do the indicators and buzzers function prop-
erly?
Lights
• Do all the lights come on?
• Are the headlights aimed correctly?
Parking brake
• Does the parking brake switch operate nor-
mally?
• When parked on a slope and the parking brake is
on, is the vehicle
securely stopped?
Seat belts
• Do the seat belts oper-ate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering
wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount
of free play?
• There should not be any strange sounds coming
from the steering wheel.
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood
• Does the engine hood lock system work prop-
erly?
ItemsCheck points

4007-2. Steps to take in an emergency
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.403)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.190)
 There may be a malfunction in the
immobilizer system. ( P.69)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
One of the following may be the cause
NOTICE
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the vehicle
height will be lower than usual. Ensure
that nothing strikes the bottom of the
vehicle.
■To avoid damaging the tire pressure
warning valves and transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used , contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and trans-
mitter when replacing the tire. ( P.350)
If the hybrid system will not
s
tart
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
(  P.162)
The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

4017-2. Steps to take in an emergency
7
When trouble arises
of the problem:
The 12-volt battery may be dis-
charged. ( P.405)
 The 12-volt battery terminal con-
nections may be loose or corroded.
( P.342)
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( P.405)
 One or both of the 12-volt battery
terminals may be disconnected.
( P.342)
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the hybrid system does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure
except in cases of emergency.
1 Press the parking brake switch to
check that the parking brake is set.
(P.172)
Parking brake indicator will come on.
2 Shift the shift lever to P.
3 Turn the power switch to ACC. 4
Press and hold the power switch for
about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be
started using the above steps, the sys-
tem may be malfunctioning. Have the
vehicle inspected by your Lexus dealer.
The interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the hybrid system in an
emergency

4107-2. Steps to take in an emergency
If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop in
a Safe Place See Owner’s Manual”
is shown on the multi-information
display
1
Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the hybrid system.
2
If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3
After the hybrid system has cooled
down sufficiently, inspect the hoses
WARNING
■When replacing the 12-volt battery
●When the vent plug is close to the hold
down clamp, the battery fluid (acid)
may leak.
●For information regarding battery
replacement, contact your Lexus
dealer.
●After exchanging, securely attach the
elbow connected to the exhaust hose,
and exhaust hole plug to the exhaust
hole of the exchanged 12-volt battery.
If not properly installed, gases (hydro-
gen) may leak into the vehicle interior,
and there is the possible danger of the
gas igniting and exploding.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fans or belt.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to
be used when charging the 12-volt bat-
tery from another vehicle in an emer-
gency. It cannot be used to jump start
another vehicle.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.78, 82) enters the
red zone, or a loss of hybrid sys-
tem power is experienced. (For
example, the vehicle speed does
not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” or “Hybrid system over-
heated Output power reduced” is
shown on the multi-information
display.
 Steam comes out from under the
hood.
Correction procedures

4228-1. Specifications
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
Tires and wheels
Tire size225/50RF18 95V
Tire inflation pressure
(Recommended cold tire inflation
pressure)Front: 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size18  7 J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
ExteriorFront turn signal lights (vehicles
with single-beam headlights)WY21W21A
InteriorVanity lights8B

4448-2. Customization
■Heated steering wheel* ( P.286)
*:If equipped
■Illumination ( P.290)
FunctionDefault settingCustomized set-
ting
Steering wheel heating prefer-
ence in automatic modeStandard-2 (low) to 2 (high)OO
FunctionDefault settingCustomized set-ting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOffO
Operation when the doors are
unlockedOnOffO
Operation when you approach
the vehicle with the electronic
key on your person
OnOffO
Footwell lightsOnOffO
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Outside door handle lightsOnOffO
Time elapsed before the outside
door handle lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outside door
handle lights when you
approach the vehicle with the
electronic key on your person
OnOffO
ABC
ABC

4458-2. Customization
8
Vehicle specifications
■Vehicle customization
●When the smart access system with
push-button start is off, the entry unlock
function cannot be customized.
●When the doors remain closed after
unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in
accordance with the operation buzzer
volume and operational signal (Emer-
gency flashers) function settings.
●Some settings can be changed using a
switch or the Center Display. If a setting is
changed using a switch, the changed set-
ting will not be reflected on the Center
Display. until the power switch is turned
off and then to ON.
■Clock settings screen
If the clock adjustment screen is displayed
continuously when attempting to change
the clock settings, the system may be mal-
functioning. Have the vehicle inspected by
your Lexus dealer.
Operation of the outside door
handle lights when the doors
are unlocked
OnOffO
Operation of the outside door
handle lights when a door is
opened
OnOffO
Rear interior light and footwell
lightsOnOffO
Fading out of the outside door
handle lights when they turn offLongShortO
FunctionDefault settingCustomized set-
tingABC

464Alphabetical Index
C
Card key .......................................................... 104
CareAluminum wheels ...................................... 322
Exterior ........................................................... 322
Interior ............................................................. 325
Seat belts........................................................ 325
Cargo capacity............................................... 157
Cargo hooks ................................................. 296
Center Display ............................................. 270
Chains .............................................................. 264
Child-protectors...............................................111
Child restraint system................................... 44 Fixed with a LATCH system .................. 52
Fixed with a seat belt................................... 48
Front passenger occupant classification system ............................................................. 39
Points to remember .................................... 44
Riding with children ..................................... 44
Types of child restraint system installation method ........................................................... 46
Using an anchor bracket .......................... 54
Child safety ....................................................... 44 12-volt battery precautions ...... 343, 409
Airbag precautions...................................... 36
Back door precautions...............................112
Child restraint system................................. 44
Heated steering wheel and seat heater precautions................................................286
How your child should wear the seat belt ............................................................................ 28
Moon roof precautions ............................149
Power window lock switch.....................146
Power window precautions ...................146
Rear door child-protectors ....................... 111
Removed key battery precautions ...369
Seat belt extender precautions ............. 28
Seat belt precautions .................................. 52
Cleaning...............................................322, 325 Aluminum wheels ...................................... 322
Exterior ........................................................... 322 Interior .............................................................325
Radar sensor ...................................... 192, 227
Seat belts ........................................................325
Clock .................................................78, 82, 301
Coat hooks...................................................... 310
Compass ........................................................... 317
Condenser ..................................................... 340
Console box .................................................. 294
Consumption screen .....................................97
Coolant Capacity .......................................................... 419
Checking .......................................................339
Preparing and checking before winter..........................................................................263
Cooling system............................................. 339 Hybrid system overheating ................... 410
Cornering lights ............................................. 179 Replacing light bulbs ................................ 374
Cruise control Dynamic radar cruise control with full-
speed range ................................................216
Cup holders ................................................... 294
Current fuel consumption .......................... 89
Curtain shield airbags ....................................31
Customizable features .............................. 434
D
Daytime running light system ................... 177
Deck board .................................................... 297
Deck under tray ........................................... 296
Defogger Outside rear view mirrors..................... 277
Rear window ................................................ 277
Windshield .................................................... 277
Differential ........................................................ 421
Dimension ........................................................416
Dinghy towing.................................................. 161
Display BSM (Blind Spot Monitor).................... 226
Dynamic radar cruise control with full-
speed range ................................................216
Energy monitor .............................................. 97

Alphabetical Index467
Glove box light ............................................. 294
Grocery bag hooks .................................... 296
H
Hands Free Power Back Door ................. 116
Headlights ........................................................ 177Automatic High Beam system............. 180
Light switch ..................................................... 177
Replacing light bulbs................................ 374
Headlights aim .............................................. 372
Head restraints ...............................................136
Head-up display.............................................. 93 Driving information display area........... 93
Driving support system display area .. 95
Head-up display switch............................. 94
Hybrid System Indicator ........................... 96
Navigation system-linked display ........ 93
Pop-up display............................................... 95
Settings .............................................................. 94
Head-up display switch................................ 94
Heated steering wheel .............................. 286
Heaters Automatic air conditioning system ... 276
Heated steering wheel............................286
Outside rear view mirrors .....................277
Seat heaters ..................................................286
Hill-start assist control ............................... 257
Hood ................................................................. 335 Open ............................................................... 335
Hooks Cargo hooks................................................ 296
Coat hooks .................................................... 310
Grocery bag hooks ................................. 296
Retaining hooks (floor mat)......................24
Horn ................................................................... 140
Hybrid battery (traction battery) Location............................................................. 65
Specification .................................................. 418
Warning message........................................ 68
Hybrid battery (traction battery) air vent ..............................................................................67
Hybrid system .................................................. 62 Emergency shut off system......................68
Energy monitor/consumption screen 97
EV drive mode............................................. 165
High voltage components .......................65
Hybrid system precautions......................65
Hybrid vehicle driving tips ......................261
If the hybrid system will not start ....... 400
Overheating .................................................. 410
Power (ignition) switch .............................162
Regenerative braking ................................. 63
Starting the hybrid system .......................162
Vehicle proximity noti
fication system. 64
Hybrid System Indicator..............79, 84, 96
Hybrid transmission...................................... 167
I
I/M test ..............................................................331
Identification Engine................................................................417
Vehicle ............................................................. 416
Ignition switch (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
Illuminated entry system ........................... 290
Immobilizer system........................................ 69
Indicators ............................................................76
Initialization Items to initialize .........................................446
Maintenance.................................... 328, 339
Power windows ........................................... 145
Tire pressure warning system .............. 351
Inside rear view mirror ............................... 140
Instrument panel light control .......... 80, 86
Interior lights.................................................. 290
Intuitive parking assist...................... 231, 232 Function .......................................................... 232
Warning message ..................................... 234

468Alphabetical Index
J
JackPositioning a floor jack............................ 336
Jam protection function Moon roof ...................................................... 148
Power back door opener and closer. 119
Power windows............................................145
K
Keyless entrySmart access system with push-button start .................................................................. 124
Wireless remote control......................... 106
Keys.................................................................... 104 Battery-saving function ............................125
Electronic key ............................................... 104
If the electronic key does not operate properly.......................................................403
If you lose your keys................................. 402
Key number plate ....................................... 104
Keyless entry .............................. 108, 113, 124
Mechanical key............................................ 104
Power switch ................................................. 162
Replacing the battery...............................368
Warning buzzer ........................................... 124
Wireless remote control key ................ 106
Knee airbags ...................................................... 31
L
Lane Tracing Assist (LTA) ....................... 205 Operation......................................................205
Warning messages .................................... 213
Language (multi-informa tion display) ..... 91
LATCH anchors ............................................. 52
Lever Auxiliary catch lever .................................335
Hood lock release lever.........................335
Shift lever.......................................................... 167
Turn signal lever .............................................171
Wiper lever......................................... 184, 188 Lexus climate concierge ...........................274
Lexus Enform Safety Connect.................. 56
Lexus Safety System+2.0 ..........................192
Automatic High Beam ............................. 180
Dynamic radar cruise control with full-
speed range ................................................216
LTA (Lane Tracing Assist) ................... 205
PCS (Pre-Collision System) ................. 198
RSA (Road Sign Assist)............................214
License plate lights Light switch ..................................................... 177
Replacing light bulbs ................................ 374
Light bulbs Replacing ....................................................... 374
Wattage .......................................................... 422
Lights Automatic High Beam system .............180
Cornering lights ...........................................179
Fog light switch ............................................ 183
Front interior lights ......................................291
Headlight switch........................................... 177
Illuminated entry system ........................ 290
Interior light list ........................................... 290
Luggage compartment light ................... 114
Personal lights ............................................. 292
Rear interior lights .......................................291
Replacing light bulbs ................................ 374
Turn signal lever ............................................ 171
Vanity lights ................................................... 301
Wattage .......................................................... 422
Welcome light illumination control ... 178
Lock steering column ..................................163
LTA (Lane Tracing Assist) ....................... 205 Operation ..................................................... 205
Warning messages.....................................213
Luggage cover ............................................. 298
M
Maintenance Do-it-yourself maintenance .................333
General maintenance .............................329
Maintenance data ....................................... 416