2019 LEXUS UX250H engine

4198-1. Specifications
8
Vehicle specifications
0W-20 oil may be used. However, it
must be replaced with SAE 0W-16 at
the next oil change.Outside temperature
Oil viscosity (0W-16 is explained here
as an example):
• The 0W in 0W-16 indicates the characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather. • The 16 in 0W-16 indicates the vis-
cosity characteristic of the oil when
the oil is at high temperature. An oil
with a higher viscosity (one with a
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.
How to read oil container label:
API registered marks is added to some
oil containers to help you select the oil
you should use.
*: The coolant capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
A
Cooling system
Capacity*
Gasoline
engine6.2 qt. (5.9 L, 5.2 Imp.qt.)
Power con-
trol unit1.7 qt. (1.6 L, 1.4 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethy lene glycol-based non-
silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hy brid organic acid tech-
nology
Do not use plain water alone.

4238-1. Specifications
8
Vehicle specifications
■Gasoline quality
In very few cases, driveability problems may
be caused by the brand of gasoline you are
using. If driveability problems persist, try
changing the brand of gasoline. If this does
not correct the problem, consult your Lexus
dealer.
■Recommendation of the use of gasoline
containing detergent additives
●Lexus recommends the use of gasoline
that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains
minimum detergent additives to clean
and/or keep clean intake systems, per
EPA’s lowest additive s concentration pro-
gram.
●Lexus strongly recommends the use of
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to
the official websit e www.toptiergas.com.
■Recommendation of the use of low
emissions gasoline
Gasolines containing oxygenates such as
ethers and ethanol, as well as reformulated
gasolines, are available in some cities.
These fuels are typically acceptable for use,
providing they meet other fuel require-
ments. Lexus recommends these fuels, since the
formulations allow for reduced vehicle
emissions.
■Non-recommendation of the use of
blended gasoline
●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from
any pump labeled
E30 (30% ethanol ), E50 (50% eth-
anol ), E85 (85% ethanol )
(which are only some examples of fuel
containing more than 15% ethanol).
●If you use gasohol in your vehicle, be sure
that it has an octane rating no lower than
87.
●Lexus does not recommend the use of
gasoline containing methanol.
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
ing for a short time wh ile accelerating or
driving uphill. This is normal and there is
no need for concern.
Fuel information
You must only use unleaded gaso-
line.
Select octane rating 87 (Research
Octane Number 91) or higher. Use
of unleaded gasoline with an octane
rating lower than 87 may result in
engine knocking. Persistent knock-
ing can lead to engine damage.
At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.
A
BC

4248-1. Specifications
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper
fuels are used, the engine will be dam-
aged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to
your vehicle’s three-way catalytic con-
verters causing the emission control sys-
tem to malfunction.
●Do not use gasohol other than the type
previously stated.
Other gasohol may cause fuel system
damage or vehicle performance prob-
lems.
●Using unleaded gasoline with an
octane number or rating lower than
the level previously stated will cause
persistent he avy knocking.
At worst, this will lead to engine damage
and will void the vehicle warranty.
■Fuel-related poor driveability
If poor driveability (poor hot starting,
vaporization, engine knocking, etc.) is
encountered after using a different type
of fuel, discontinue the use of that type of
fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can dam-
age your vehicle’s paint.

4298-1. Specifications
8
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for three
hours or more, or has not been driven more than 1 mile or 1.5
km under that condition
Maximum inflation pressureThe maximum cold inflated pre ssure to which a tire may be
inflated, shown on th e sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manufac-
turer
Accessory weight
The combined weight (in excess of those standard items
which may be replaced) of hybr id transmission, power steer-
ing, power brakes, power windows, power seats, radio and
heater, to the extent that these items are available as factory-
installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant, and
if so equipped, air conditio ning and additional weight
optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants specified in
the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a ve hicle as specified in the third
column of Table 1
* below
Production options weight
The combined weight of in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the stan-
dard items which they replace, not previously considered in
curb weight or accessory we ight, including heavy duty
brakes, ride levelers, roof r ack, heavy duty 12-volt battery,
and special trim
RimA metal support for a tire or a tire and tube assembly upon
which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat

Alphabetical Index465
Head-up display ........................................... 93
Intuitive parking assist.............................. 232
LTA (Lane-Tracing Assist) .....................210
Multi-information display .......................... 87
RCTA .............................................................. 239
Warning messages ..................................395
Distance until next engine oil change .. 80, 86
Do-it-yourself maintenance .................... 333
Door lock Doors................................................................ 108
Smart access system with push-button start .................................................................. 124
Wireless remote control......................... 106
Doors Automatic door lock ing and unlocking
system ............................................................... 111
Back door..........................................................112
Door glasses ..................................................145
Door lock........................................................ 108
Open door warning bu zzer .......... 109, 111
Outside rear view mirrors ...................... 142
Rear door child-protectors ....................... 111
Side doors ...................................................... 108
Drive distance .................................................. 89
Drive info 1/Drive info 2 .............................. 89
Driver’s seat position memory .................133
Drive-start control ........................................152
Driving................................................................152 Break-in tips ...................................................153
Correct driving posture ............................ 25
Driving mode select switch .................. 255
Hybrid vehicle driving tips ...................... 261
Procedures .....................................................152
Winter drive tips......................................... 263
Driving information display ........................ 88
Driving position memory............................133 Memory recall function ............................135
Driving range ................................................... 89
Driving support system information display ............................................................................. 90
Dynamic radar cruise control with full- speed range..................................................216
Warning message .........................224, 395
E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 256
Eco drive mode ............................................ 255
EDR (Event data recorder) ........................... 8
E-Four .............................................................. 257
Elapsed time ..................................................... 89
Electric motor Location ............................................................. 62
Electric Power Steering (EPS) Function .......................................................... 257
Warning light .............................................. 388
Electronically Controlled Brake System (ECB) ............................................................ 256
Electronic key ................................................ 104 Battery-saving function............................ 125
If the electronic key does not operate properly ...................................................... 403
Replacing the battery .............................. 368
Emergency, in case of If a warning buzzer sounds.................. 386
If a warning light turns on...................... 386
If a warning message is displayed .... 395
If the 12-volt battery is discharged ... 405
If the electronic key does not operate properly ...................................................... 403
If the fuel filler do or cannot be opened
..........................................................................402
If the hybrid system will not start ....... 400
If the vehicle is trapped in rising water .......................................................................... 379
If you have a flat tire ................................. 399
If you lose your keys .................................402
If you think something is wrong......... 385
If your vehicle becomes stuck ...............413
If your vehicle has to be stopped in an emergency .................................................378
If your vehicle needs to be towed ...... 381
If your vehicle overheats ......................... 410

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

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

Alphabetical Index469
Maintenance requirements .................. 328
Malfunction indicator lamp ..................... 387
Menu icons........................................................ 87
Meter Changing the main meter location ..... 86
Clock ......................................................... 78, 82
Hybrid System Indicator .................. 79, 84
Indicators .......................................................... 76
Instrument panel light control ...... 80, 86
Meter control switches ..............................88
Meters ....................................................... 78, 82
Multi-information display .......................... 87
Settings ................................................................ 91
Warning lights .............................................386
Warning messages ..................................395
Mirrors Inside rear view mirror............................. 140
Outside rear view mirror defoggers 277
Outside rear view mirrors ...................... 142
Vanity mirrors............................................... 301
Moon roof Door lock linked moon roof operation.......................................................................... 148
Jam protection function........................... 148
Operation........................................................ 147
Multi-information display ............................ 87 Audio system-linked display................... 90
Drive information 1/Drive information 2............................................................................ 89
Driving information display......................88
Driving support system information dis- play ................................................................... 90
Dynamic radar cruise control with full- speed range ................................................ 216
Energy monitor.............................................. 97
G-force.............................................................. 90
LTA (Lane-Tracing Assist) .....................210
Menu icons ...................................................... 87
Meter control switches ..............................88
Navigation system-linked display ........ 90
Pop-up display............................................... 87
Settings ................................................................ 91 Suggestion function ..................................... 92
Units.....................................................................90
Warning messages.................................. 395
N
Navigation system-lin
ked display....90, 93
Noise from under vehicle ...............................6
O
Odometer ................................................ 80, 86
Odometer and trip meter display “ODO TRIP” switch .......................... 80, 86
Display items ......................................... 80, 86
Pop-up display ..................................... 80, 86
“ODO TRIP” switch ............................. 80, 86
Oil Engine oil......................................................... 418
Opener Back door ................................................ 113, 115
Fuel filler door ............................................... 190
Hood ................................................................335
Outside rear view mirrors ......................... 142 Adjustment ......................................................142
BSM (Blind Spot Monitor).................... 226
Folding...............................................................143
Linked mirror functi on when reversing
............................................................................143
Mirror position memory .......................... 133
Outside rear view mirror defoggers 277
RCTA function ............................................239
Outside temperature..... ....................... 78, 82
Overheating ................................................... 410
P
Paddle shift switches ..........................169, 170
Panic mode ..................................................... 106
Parking assist sensors (intuitive parking assist) ............................................................. 232
Parking brake.................................................. 172 Operation ........................................................ 172