2020 LEXUS NX300h battery capacity

4157-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78530_en
7
When trouble arises
■When replacing the 12-volt battery
●Use a 12-volt battery that the case size is
same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent
(60Ah) or greater, and performance rat-
ing (CCA) is equivalent (460A) or
greater.
• If the sizes differ, the 12-volt battery can-
not be properly secured.
• 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.
●After exchanging, firmly attach the fol-
lowing items to the exhaust hole of the 12-
volt battery.
• Use the exhaust hose that was attached to the 12-volt battery before
exchanging and confirm that it is firmly
connected to the hole section of the vehi-
cle.
• Use the exhaust hole plug included
with the 12-volt battery exchanged or the
one installed on the battery prior to the
exchange. (Depending on the 12-volt
battery to be exchanged, the exhaust
hole may be plugged.)
For details, consult your Lexus dealer.
C
A
B
WARNING
■Avoiding 12-volt battery fires or
explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the 12-
volt battery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentionally in contact with
any other than the intended terminal.
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal to come into contact with any
other parts or meta l surfaces in the
area, such as brackets or unpainted
metal.
●Do not allow the + and - clamps of the
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
12-volt battery.
■12-volt Battery precautions
The 12-volt battery contains poisonous
and corrosive acidic electrolyte, while
related parts contain lead and lead com-
pounds. Observe the following precau-
tions when handling the 12-volt battery:
●When working with the 12-volt battery,
always wear safety glasses and take
care not to allow any battery fluids
(acid) to come into contact with skin,
clothing or the vehicle body.
●Do not lean over the 12-volt battery.
●In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●Always wash your ha nds after handling
the 12-volt battery support, terminals,
and other battery-related parts.

4248-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_en
Rear
■Oil capacity (Drain and refill [Reference*])
*: 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: ILSAC GF-5 multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
If SAE 0W-20 is not available, SAE 5W-20 oil may be used. However, it
must be replaced with SAE 0W-20 at
the next oil change.
Outside temperature
Oil viscosity (0W-20 is explained here
TypePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque103 ft•lbf (139 N•m, 14.2 kgf•m)
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity34 modules
Nominal voltage244.8 V
Lubrication system
With filter4.6 qt. (4.4 L, 3.9 Imp.qt.)
Without filter4.2 qt. (4.0 L, 3.5 Imp.qt.)
A

4268-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_en
■Spark plug
■12-volt battery
■Charging rates
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact your Lexus dealer.
Ignition system
MakeDENSO FK16HR-A8
Gap0.03 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Specific voltage reading
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.)
Quick charge
Slow charge15 A max.
5 A max.
Hybrid transmission
Fluid capacity*Front
4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.

4368-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_ennation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related
termMeaning
Cold tire
inflation
pressure
Tire pressure when the vehi-
cle 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
pressure to which a tire may
be inflated, shown on the
sidewall of the tire
Recom-
mended
inflation
pressureCold tire inflation pressure
recommended by a manu-
facturer
Accessory
weight
The combined weight (in
excess of those standard
items which may be
replaced) of transmission,
power steering, 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 vehi-
cle with standard equip-
ment, including the
maximum capacity of fuel,
oil and coolant, and if so
equipped, air conditioning
and additional weight
optional engine
Maximum
loaded vehi-
cle 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 speci-
fied in the second column of
Table 1
* that follows
Occupant
distribution
Distribution of occupants in
a vehicle as specified in the
third column of Table 1
*
below
Production
options
weight
The combined weight of
installed regular production
options weighing over 5 lb.
(2.3 kg) in excess of the
standard items which they
replace, not previously con-
sidered in curb weight or
accessory weight, including
heavy duty brakes, ride lev-
elers, roof rack, heavy duty
12-volt battery, and special
trim
Rim
A metal support for a tire or
a tire and tube assembly
upon which the tire beads
are seated
Rim diame-
ter
(Wheel
diameter)
Nominal diameter of the
bead seat
Rim size des-
ignationRim diameter and width
Tire related termMeaning

470Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78530_en
B
Back door .......................................................... 114 Wireless remote control............................117
Back-up lights Replacing light bulb.................................. 374
Battery (12-volt battery) If the 12-volt battery is discharged ...... 412
Preparing and checking before winter ..........................................................................277
Replacing ......................................................... 414
Warning light ...............................................386
Battery (traction battery) ............................ 70
Blind Spot Monitor (BSM)......................... 261 Blind Spot Monitor function................. 263
Rear Cross Traffic Alert function....... 265
Bottle holders................................................ 304
Brake Brake Hold .................................................... 186
Fluid .................................................................. 427
Parking brake ............................................... 183
Regenerative braking ................................. 68
Warning light ............................................... 387
Brake assist .................................................... 270
Brake Hold ...................................................... 186
Break-in tips..................................................... 157
Brightness control Instrument panel light control ................88
BSM (Blind Spot Monitor)......................... 261 Blind Spot Monitor function................. 263
Rear Cross Traffic Alert function....... 265
BSM (Blind Spot Monitor) main switch261
C
Card key .......................................................... 106
Care Aluminum wheels ..................................... 330
Exterior............................................................333
Interior .............................................................333
Seat belts ........................................................333
Cargo capacity........................... 161, 164, 422
Cargo hooks ................................................. 306
Cargo net hooks .......................................... 306
Chains .............................................................. 278
Child restraint system....................................47 Booster seats installation .......................... 53
Convertible seats installation .................. 52
Front passenger occupa nt classification
system................................................................ 41
Infant seats installation ..................................51
Installing CRS with LATCH anchors .55
Installing CRS with seat belts ....................51
Installing CRS with top tether strap..... 57
LATCH anchors ...........................................55
Child safety ........................................................47 12-volt battery precautions ........ 353, 415
Airbag precautions ...................................... 37
Back door precautions .............................. 114
Child restraint system ................................. 47
How your child should wear the seat belt............................................................................. 28
Installing child restraints............................. 47
Moon roof precautions............................ 152

LEXUS NX300h Owners Manual_USA_M78530_en
Alphabetical Index471
Power window lock switch.....................149
Power window precautions ...................149
Rear door child-protectors ..................... 113
Removed key battery precautions ...369
Seat belt extender precautions ............. 28
Seat belt precautions ...................................47
Seat heater precautions ......................... 297
Child-protectors............................................. 113
Cleaning.............................................. 330, 333 Aluminum wheels ......................................330
Exterior ...........................................................330
Interior ............................................................. 333
Seat belts........................................................ 333
Clock ................................................................. 310
Compass ......................................................... 326
Condenser ..................................................... 350
Console box .................................................. 304
Consumption screen .................................... 99
Coolant Capacity ......................................................... 425
Checking ....................................................... 349
Preparing and checking before winter..........................................................................277
Warning light ............................................... 387
Cooling system............................................. 349 Hybrid system overheating ....................416
Cornering lights .............................................. 191 Coussins gonflables
Modification et élimin ation en fin de vie
des coussins gonflables ...................... 462
Précautions avec les coussins gonflables latéraux ....................................................... 458
Précautions avec les coussins gonflables latéraux et rideau ................................... 458
Précautions avec les coussins gonflables pour votre enfant ................................... 458
Précautions avec les coussins gonflables rideau........................................................... 458
Précautions générales avec les coussins gonflables .................................................. 458
Cruise control Dynamic radar cruise control with full-
speed range ..............................................236
Cup holders ................................................... 304
Curtain shield airbags .................................. 32
Customizable features ................................441
D
Daytime running light system .................. 190
Deck board .................................................... 307
Deck under tray ........................................... 307
Defogger Outside rear view mirrors.................... 290
Rear window ............................................... 290
Windshield ................................................... 290
Differential .......................................................427
Dimension ...................................................... 422
Dinghy towing................................................. 173

LEXUS NX300h Owners Manual_USA_M78530_en
Alphabetical Index473
Emergency flashers .................................... 378
Emergency, in case ofIf a warning buzzer sounds ..................386
If a warning light turns on ......................386
If a warning message is displayed.....396
If the 12-volt battery is discharged ...... 412
If the electronic key does not operate properly........................................................ 410
If the fuel filler door cannot be opened .........................................................................409
If the hybrid system will not start ........ 407
If the vehicle is trapped in rising water ......................................................................... 379
If you have a flat tire ................................. 400
If you lose your keys.................................409
If you think something is wrong .........384
If your vehicle becomes stuck...............419
If your vehicle has to be stopped in an
emergency ................................................ 378
If your vehicle needs to be towed ...... 381
If your vehicle overheats ..........................416
Energy monitor ............................................... 99
Engine Accessory mode ......................................... 176
Compartment ............................................. 346
Engine switch................................................. 174
Hood................................................................ 344
How to start the hybrid system ............ 174
Identification number ............................... 423
If your vehicle has to be stopped in an
emergency ................................................ 378
Ignition switch (power switch) .............. 174
Overheating...................................................416
Power switch ................................................. 174 Engine compartment cover .................... 347
Engine coolant
Capacity .........................................................425
Checking .......................................................349
Preparing and checking before winter.......................................................................... 277
Warning light ...............................................387
Engine coolant temperature gauge ....... 84
Engine oil Capacity ......................................................... 424
Checking ....................................................... 347
Warning light ...............................................387
Engine switch .................................................. 174
EPS (Electronic Power Steering) Function .......................................................... 270
Warning light .............................................. 388
EV drive mode................................................ 177
EV indicator ...................................................... 68
Event data recorder (E DR) ........................... 8
F
Flat tire .............................................................400
Tire pressure warning system .............357
Floor mats .......................................................... 24
Fluid Brake ................................................................ 427
Transmission................................................. 426
Washer ............................................................ 351
Fog lights Replacing light bulbs ................................ 374
Switch................................................................ 195
Front passenger occupant classification system ................................................................ 41

478Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78530_en
Power back door open er and closer ..... 117
Power control unit coolant Capacity ......................................................... 425
Checking ....................................................... 349
Preparing and checking before winter..........................................................................277
Radiator ......................................................... 350
Power easy access system ....................... 138
Power outlets ................................................... 311
Power steering (Electric Power Steering system).......................................................... 270Warning light .............................................. 388
Power switch ................................................... 174
Power windows Door lock linked window operation..149
Jam protection function........................... 148
Operation....................................................... 148
Window lock switch ..................................149
Pre-Collision System (PCS) Function ............................................................210
PCS switch ..................................................... 212
Warning light ...............................................389
Warning message.....................................396
R
Radar cruise control (dynamic radar cruise control with full-speed range)............. 236
Radiator ........................................................... 350
Rear Cross Traffic Alert ........................... 265
Rear seat Folding down the rear seatbacks........134 Rear side marker lights
Light switch .................................................... 189
Replacing light bulbs ................................ 374
Rear turn signal lights Replacing light bulb .................................. 374
Turn signal lever .......................................... 182
Rear view mirror Inside rear view mirror ..............................144
Outside rear view mirrors...................... 146
Rear window defogger ............................. 290
Rear window wiper.....................................200
Refueling ......................................................... 202 Capacity ......................................................... 423
Fuel types ....................................................... 423
Opening the fuel tank cap ....................202
When the fuel filler door cannot be
opened........................................................ 409
Regenerative braking ................................... 68
Remote Touch .............................................. 284
Replacing Electronic key battery ............................. 368
Fuses.................................................................370
Light bulbs ..................................................... 374
Tires ................................................................. 400
Reporting safety defects for U.S. owners .......................................................................... 454
Resetting the message indicating mainte- nance is required ...................................... 337
Road accident cautions ................................. 71
RSA (Road Sign Assist) ............................ 234