2019 LEXUS UX250H battery capacity

4087-2. Steps to take in an emergency
■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 headlight s, the air condition-
ing system, the audio system, etc. while
the hybrid system is off.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradua lly even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the hybrid system may be
unable to start. (The 12-volt battery
recharges automatically while the hybrid
system is operating.)
■When the 12-volt battery is removed or
discharged
●Information stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
●The hybrid system may not start on the
first attempt after the 12-volt battery has
recharged but will start normally after the
second attempt. This is not a malfunction.
●The power switch mode is memorized by
the vehicle. When the 12-volt battery is
reconnected, the system will return to the
mode it was in before the 12-volt battery
was discharged. Before disconnecting
the 12-volt battery, turn the power switch
off.
If you are unsure what mode the power
switch was in before the 12-volt battery discharged, be especially careful when
reconnecting the 12-volt battery.
●The power back door must be initialized.
(
 P.119)
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt
battery (European Regulations).
●Use a 12-volt battery that the case size is
same as the previous one (LN1), 20 hour
rate capacity (20HR) is equivalent
(45Ah) or greater, and performance rat-
ing (CCA) is equivalent (286A) or
greater.
• If the sizes differ, the 12-volt battery can- not be properly secured.
• If an improper 12-volt battery is used, bat-
tery performance may decrease and the
hybrid system may not be able to restart.
• If the 20 hour rate capacity is low, even if
the time period where the vehicle is not
used is a short time, the 12-volt battery
may discharge and hybrid system may
not be able to start.
●Use a 12-volt battery with a handle. If a
12-volt battery without a handle is used,
removal is more difficult.
●After exchanging, firmly attach the fol-
lowing items to the exhaust hole of the 12-
volt battery.
• Confirm that the elbow is securely attached to the exhaust hose and exhaust
hole.
• Confirm that the exhaust hole plug is securely attached to the exhaust hole that
the elbow is not attached to.
• Use the elbow/exhaust hole plug included with the 12-volt battery
exchanged or the on e installed on the
battery prior to the exchange. (Depend-
ing on the 12-volt battery to be
exchanged, the exhaust hole may be
plugged.)

4188-1. Specifications
Front
Rear (AWD models)
■Oil capacity (Drain and refill [Ref-
erence
*])
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn
off the hybrid system, wait more than 5
minutes, and check the oil level on the
dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: API SN/RC multigrade
engine oil
Recommended viscosity: SAE 0W-16
SAE 0W-16 is the best choice for good
fuel economy and good starting in cold
weather.
If SAE 0W-16 is not available, SAE
Electric motor (traction motor)
TypePermanent magnet synchronous motor
Maximum output80 kW
Maximum torque149.0 ft•lbf (202 N•m, 20.6 kgf•m)
TypePermanent induction motor
Maximum output5.3 kW
Maximum torque40.6 ft•lbf (55 N•m, 5.6 kgf•m)
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity30 modules
Overall voltage216 V
Lubrication system
With filter4.5 qt. (4.3 L, 3.8
Imp.qt.)
Without filter4.1 qt. (3.9 L, 3.4
Imp.qt.)

4208-1. Specifications
■Spark plug
■12-volt battery
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Ignition system
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Open voltage at 68°F (20°C):12.0 V or higher
If the voltage is lower than the standard value,
charge the battery.
(After charging the battery, turn on the high beam
headlights for 30 seconds with the power switch
OFF, and turn the headlights off.)
Charging rates:
Quick charge
Slow charge
15 A max.
5 A max.
Hybrid transmission
Fluid capacity*4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.

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

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

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

Alphabetical Index473
Tire inflation pressure display function
.........................................................................348
Warning light ............................................... 387
Tire information ............................................ 425 Glossary......................................................... 429
Size.................................................................... 426
Tire identification number ..................... 426
Uniform Tire Quality Grading............ 427
Tire pressure warning system Function ..........................................................348
Initializing .........................................................351
Installing tire pressure warning valves and transmitters ..................................... 350
Registering ID codes ............................... 352
Warning light ............................................... 387
Tires................................................................... 345 Chains ............................................................. 264
Checking ....................................................... 345
If you have a flat tire ..................................399
Inflation pressure..........................................361
Information .................................................... 425
Replacing .......................................................355
Rotating tires ................................................ 347
Run-flat tires ..................................... 347, 399
Size.................................................................... 422
Snow tires ...................................................... 263
Tire pressure warning system .............348
Warning light ............................................... 387
Tools.......................................................296, 355
Top tether strap............................................... 54
Total load capacity ........................................416
Towing Dinghy towing ................................................ 161
Emergency towing .................................... 381
Towing eyelet ..............................................384
Trailer towing ................................................ 160
TRAC (Traction Control) ........................ 257
Traction battery (hybrid battery) ............. 65 Hybrid battery (traction battery) air vents............................................................................ 67
Location............................................................. 65
Specification .................................................. 418 Warning message ........................................68
Traction Control (TRAC) ........................ 257
Traction motor (electric motor) ............... 62
Trailer towing ................................................. 160
Transmission Hybrid transmission....................................167
Paddle shift switches .......................169, 170
S mode ............................................................. 170
Selecting the driving mode ...................255
Trip meters ............................................... 80, 86
Turn signal lights Replacing light bulbs ................................ 374
Turn signal lever ............................................ 171
Wattage .......................................................... 422
U
USB charging ports.................................... 302
V
Vanity lights..................................................... 301Wattage .......................................................... 422
Vanity mirrors ................................................ 301
Vehicle data recording ....................................7
Vehicle identification number ..................416
Vehicle Stability Cont rol (VSC) ........... 256
Ventilators (seat ventilators)................... 286
VSC (Vehicle Stability Control) ........... 256
W
Warning buzzers ABS .................................................................. 388
Airbags........................................................... 388
Approach warning.................................... 222
Brake hold .................................................... 389
Brake Override System .......................... 391
Brake system............................................... 386
Charging system....................................... 386
Downshifting ................................................... 171
Drive-Start Control.................................... 391
Electric power steering.......................... 388

474Alphabetical Index
Engine ............................................................. 387
High coolant temperature .................... 387
Hybrid system overheat......................... 392
Hybrid system ............................................. 387
Intuitive parking assist................. 238, 389
Low engine oil pressure.........................386
LTA (Lane Tracing Assist)......... 205, 391
Open door.............................................. 109, 111
Open hood........................................................ 111
Open window ...............................................146
PKSA (Parking Support Alert) ............. 231
PKSB (Parking Support Brake) .........390
Pre-collision braking................................. 198
RCTA (Rear Cross Traffic Alert) ......389
Seat belt ............................................... 390, 391
Warning lights............................................... 386 ABS ................................................................. 388
Brake hold operated indicator ...........389
Brake Override System ...........................391
Brake system ...............................................386
Charging system .......................................386
Drive-Start Control ....................................391
Electric power steering ......................... 388
High coolant temperature .................... 387
Intuitive parking assist OFF indicator.........................................................................389
Low engine oil pressure.........................386
Low fuel level ...............................................390
LTA indicator .................................................391
Malfunction indicator lamp................... 387
Parking brake indicator ..........................389
PKSB OFF indicator ................................390
Pre-collision system ................................. 392
RCTA OFF indicator...............................389
Seat belt reminder light ............... 390, 391
Slip indicator ............................................... 388
SRS................................................................... 388
Tire pressure ................................................ 387
Warning messages ..................................... 395
Washer Checking ......................................................... 341
Preparing and checking before winter ..........................................................................263
Switch..................................................... 184, 188
Washing and waxing.................................. 322
Weights Cargo capacity .............................................157
Load limits ...................................................... 160
Weights ........................................................... 416
Wheels ............................................................. 363 Size .................................................................... 422
Window glasses .............................................145
Window lock switch .....................................146
Windows Power windows ........................................... 145
Rear window defogger........................... 277
Washer ................................................. 184, 188
Windshield wiper de-icer ..........................281
Windshield wipers Intermittent windshield wipers ............. 184
Position............................................................. 186
Rain-sensing windshield wipers .......... 184
Winter driving tips....................................... 263
Wireless remote control key ................... 106 Battery-saving function............................ 125
Locking/Unlocking ................................... 106
Panic mode .................................................... 106
Replacing the battery .............................. 368
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
· Audio/video system
· Navigation system
· Lexus parking assist monitor
· Lexus Enform