transmission LEXUS NX300h 2020 User Guide

2814-6. Driving tips
LEXUS NX300h Owners Manual_USA_M78530_en
4
Driving
restrict travel.
 Stay on established roads. When
conditions are wet, driving tech-
niques should be changed or travel
delayed to prevent damage to
roads.
 Avoid driving on very steep, slippery
roads and other surfaces, such as
sand, where the tires are liable to
lose traction. Your vehicle may not
perform as well as conventional
AWD on-road vehicles on these
surfaces.
■Additional informatio n for off-road driv-
ing
For owners in U.S. mainland, Hawaii and
Puerto Rico:
To obtain additional information pertaining
to driving your vehicle off-road, consult the
following organizations.
●State and Local Parks and Recreation
Departments
●State Motor Vehicle Bureau
●Recreational Vehicle Clubs
●U.S. Forest Service and Bureau of Land
Management
WARNING
■Off-road driving precautions
Always observe the following precau-
tions to minimize the risk of death or seri-
ous injury or damage to your vehicle:
●Drive carefully when off the road. Do
not take unnecessary risks by driving in
dangerous places.
●Do not grip the steering wheel spokes
when driving off-road. A bad bump
could jerk the wheel and injure your
hands. Keep both hands and especially
your thumbs on the outside of the rim.
●Always check your brakes for effec-
tiveness immediately after driving in
sand, mud, water or snow.
●After driving through tall grass, mud,
rock, sand, water, et c., check that there
is no grass, bush, paper, rags, stone,
sand, etc. adhering or trapped to the
underbody. Clear of f any such matter
from the underbody. If the vehicle is
used with these materials trapped or
adhering to the underbody, a break-
down or fire could occur.
●When driving off-road or in rugged
terrain, do not drive at excessive
speeds, jump, make sharp turns, strike
objects, etc. This may cause loss of
control or vehicle rollover causing
death or serious injury. You are also
risking expensive damage to your
vehicle’s suspension and chassis.
NOTICE
■To prevent water damage
Take all necessary safety measures to
ensure that water damage to the hybrid
battery (traction battery), hybrid system
or other components does not occur.
●Water entering the engine compart-
ment may cause seve re damage to the
hybrid system. Water entering the inte-
rior may cause the hybrid battery
stowed under the re ar seats to short
circuit.
●Water entering the hybrid transmis-
sion and rear electric motor (traction
motor) will cause deterioration in
transmission quality. The malfunction
indicator may come on, and the vehi-
cle may not be drivable.
●Water can wash the grease from wheel
bearings, causing rusting and prema-
ture failure, and may also enter the
hybrid transmission case, reducing the
gear oil’s lubricating qualities.

3827-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78530_en
The following may indicate a problem
with your hybrid transmission. Contact
your Lexus dealer or commercial tow-
ing service before towing. ( P.381)
 The hybrid warning message shows
on the multi-information display and
the vehicle does not move.
 The vehicle makes an abnormal
sound.
Do not tow with a sling-type truck to
prevent body damage.
From the front
Use a towing dolly under the rear
wheels.
From the rear
Use a towing dolly under the front
wheels.
If your vehicle is transported by a flat-
bed truck, it should be tied down at the
locations shown in the illustration.
NOTICE
■Recreational towing (behind motor
home, etc.)
Never dinghy tow your vehicle to pre-
vent causing serious damage to the
Hybrid AWD system and transmission.
(  P.173)
Situations when it is necessary to
contact dealers before towing
Towing with a sling-type truck
Towing with a wheel-lift type
truck
Using a flatbed truck

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.

4278-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_en
8
Vehicle specifications
*: The fluid capacity is the quantity of reference. If replacement is necessary, contact your Lexus dealer.
*: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50.0 kgf)
while the hybrid system is operating.
Rear differential (Rear electric motor)
Fluid capacity*1.9 qt. (1.8 L, 1.6 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately
damage the transmission of your vehicle.
Brakes
Pedal clearance*4.13 in. (105 mm) Min.
Brake pad wear limit0.04 in. (1.0 mm)
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid type• FMVSS No. 116 DOT 3 or SAE J1703
• FMVSS No. 116 DOT 4 or SAE J1704
Steering
Free playLess than 1.2 in. (30 mm)

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

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

LEXUS NX300h Owners Manual_USA_M78530_en
Alphabetical Index475
Hybrid battery (traction battery)Location............................................................. 70
Specification ................................................. 424
Hybrid battery air vent ..................................72
Hybrid system ...................................................67 Emergency shut off system ......................73
Energy monitor/consumption screen99
EV drive mode ............................................. 177
High voltage components ....................... 70
Hybrid System Indicator ........................... 87
Hybrid system precautions ..................... 70
Hybrid vehicle driving tips .................... 275
If the hybrid system will not start ........ 407
Overheating...................................................416
Power switch ................................................. 174
Regenerative braking ................................. 68
Starting the hybrid system....................... 174
Vehicle proximity notification system 69
Hybrid System Indicator.............................. 87
Hybrid transmission...................................... 179
I
I/M test ............................................................ 340
Identification Engine ............................................................. 423
Vehicle ............................................................ 422
Ignition switch (Power switch) ................. 174
Illuminated entry system ...........................300
Immobilizer system .........................................75
Indicators ........................................................... 82
Initialization Items to initialize ......................................... 452
Inside rear view mirror ................................144
Instrument panel light control ................... 88
Interior lights..................................................300 Intuitive parking assist
Function .......................................................... 247
Warning message .....................................248
J
JackPositioning a floor jack ............................ 344
Vehicle-equipped jack .......................... 400
Jack handle ....................................................400
Jam protection function Moon roof ........................................................ 151
Power back door closer ........................... 121
Power windows ........................................... 148
Rear seats ........................................................137
K
Keyless entrySmart access system with push-button start ..................................................................126
Wireless remote control ......................... 107
Keys.................................................................... 106 Battery-saving function............................. 127
Electronic key ............................................... 106
Engine switch .................................................174
If the electronic key does not operate properly ........................................................ 410
If you lose your keys ................................ 409
Key number plate ....................................... 106
Keyless entry .........................................110, 126
Mechanical key ............................................ 106
Power switch..................................................174
Replacing the battery .............................. 368
Warning buzzer ........................................... 127
Wireless remote control key ................ 107
Knee airbags .................................................... 32

LEXUS NX300h Owners Manual_USA_M78530_en
Alphabetical Index481
T
Tachometer....................................................... 84
Tail lightsLight switch .................................................... 189
Replacing light bulbs................................ 374
Theft deterrent system Alarm ................................................................... 77
Immobilizer system...................................... 75
Tire inflation pressure Maintenance data...................................... 428
Warning light ............................................... 392
Tire information ............................................ 432 Glossary......................................................... 436
Size.................................................................... 434
Tire identification number ..................... 433
Uniform Tire Quality Grading............ 435
Tire pressure warning system Function .......................................................... 357
Initializing .........................................................361
Installing tire pressure warning valves and transmitters ......................................360
Registering ID codes ............................... 362
Warning light ............................................... 392
Tires................................................................... 355 Chains ............................................................. 278
Checking .......................................................355
Glossary......................................................... 436
If you have a flat tire ................................. 400
Inflation pressure............................363, 428
Replacing ...................................................... 400
Rotating tires ................................................356
Size.................................................................... 428
Snow tires .......................................................277
Spare tire........................................... 400, 428
Tire identification number ..................... 433
Tire pressure warning system ............. 357
Uniform Tire Quality Grading............ 435
Warning light ............................................... 392 Tools..................................................................400
Top tether strap............................................... 57
Total load capacity ...................................... 422
Towing
Dinghy towing ...............................................173
Emergency towing..................................... 381
Towing eyelet.............................................. 383
Trailer Sway Control................................270
Trailer towing ...................................... 165, 173
TRAC (Traction Control) ........................ 270
Traction battery (Hybrid battery) ............ 70 Hybrid battery (traction battery) air intake and discharge vents ................... 72
Location ............................................................. 70
Specification ................................................. 423
Warning messages...................................... 73
Traction motor (electric motor) ................67
Trailer Sway Control.................................. 270
Trailer towing ........................................ 165, 173
Transmission Hybrid transmission....................................179
Selecting a driving mode .......................269
Trip meters ........................................................ 84
Turn signal lights Replacing light bulbs .................... 374, 375
Turn signal lever .......................................... 182
Wattage .......................................................... 429
V
Vanity lightsVanity lights ................................................... 310
Wattage .......................................................... 429
Vanity mirrors ................................................ 310 Vanity lights ................................................... 310
Vehicle data recordings ..................................7
Vehicle identification number ................ 422
Vehicle Stability Control (VSC) ........... 270
VSC (Vehicle Stability Control) ........... 270