transmission LEXUS NX300h 2018 User Guide

2614-6. Driving tips
LEXUS NX300h Owners Manu-
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Driving WARNING●
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, etc., check that there
is no grass, bush, paper, rags, stone,
sand, etc. adhering or trapped to the
underbody. Clear off 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 sh arp 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 sa fety measures to
ensure that water da mage to the hybrid
battery (traction battery), hybrid system
or other components does not occur. ●
Water entering the engine compart-
ment may cause severe damage to the
hybrid system. Water entering the inte-
rior may cause the hybrid battery
stowed under the rear seats to short
circuit.
●
Water entering the hybrid transmis-
sion and rear electr ic 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. ■
When you drive through water
If driving through water, such as when
crossing shallow streams, first check the
depth of the water and the bottom of the
riverbed for firmness. Drive slowly and
avoid deep water. ■
Inspection after off-road driving ●
Sand and mud that has accumulated
around brake discs may affect braking
efficiency and may damage brake sys-
tem components. ●
Always perform a maintenance
inspection after each day of off-road
driving that has taken you through
rough terrain, sand, mud, or water. For
scheduled maintena nce information,
refer to the “Warranty and Services
Guide/Owner’s Manual Supplement/
Scheduled Maintenance”.

3617-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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When trouble arises
The following may indicate a problem
with your hybrid tr ansmission. Contact
your Lexus dealer or commercial tow-
ing service before towing. ( → P.360)
 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.167)
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

404 8-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
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 Make DENSO FK16HR-A8
Gap 0.03 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 th an 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 charge 15 A max.
5 A max.
Hybrid transmission Fluid capacity * 
Front
4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid type Toyota 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.

4058-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 type Toyota Genuine ATF WS
NOTICE■
Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ca use 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 limit 0.04 in. (1.0 mm)
Pedal free play 0.04 — 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 play Less than 1.2 in. (30 mm)

414 8-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U Glossary of tire terminology Tire related
term Meaning
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
pressure The maximum cold inflated
pressure to which a tire may
be inflated, shown on the
sidewall of the tire
Recom-
mended
inflation
pressure Cold 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
weight 150 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-
ignation Rim diameter and widthTire related
term Meaning

450 Alphabetical Index
LEXUS NX300h Owners Manu-
al_USA_OM78212U Accessory mode .........................................170
Compartment ............................................. 327
Engine switch................................................ 168
Hood................................................................ 325
How to start the hybrid system ........... 168
Identification number ................................ 401
If your vehicle has to be stopped in an
emergency ............................................... 358
Ignition switch (power switch) ............. 168
Overheating................................................. 394
Power switch ................................................ 168
Engine compartment cover .................... 328
Engine coolant
Capacity .........................................................403
Checking .......................................................330
Preparing and checking before winter
......................................................................... 257
Warning light ...............................................366
Engine coolant temperature gauge ........79
Engine oil
Capacity ......................................................... 402
Checking ....................................................... 328
Warning light ...............................................366
Engine oil maintenance data .................. 329
Engine switch ................................................. 168
EPS (Electronic Power Steering)
Function ..........................................................250
Warning light ............................................... 367
EV drive mode................................................. 171
EV indicator ...................................................... 62
Event data recorder (EDR) ............................7 F
Flat tire ..............................................................377
Tire pressure warning system ............ 338
Floor mats .......................................................... 24
Fluid
Brake ............................................................... 405
Transmission................................................ 404
Washer ........................................................... 332
Fog lights
Replacing light bulbs ................................353
Switch................................................................ 189
Front passenger occupant classification
system ................................................................ 41
Front passenger’s seat belt reminder light
.......................................................................... 369
Front seats ........................................................128
Adjustment ..................................................... 128
Cleaning ...........................................................317
Correct driving posture ............................ 25
Driving position memory .........................134
Head restraints..............................................137
Power easy access system .....................134
Seat heaters .................................................. 276
Seat position memory ...............................134
Front side marker lights
Light switch .................................................... 183
Replacing light bulbs ................................354
Wattage ..........................................................407
Front turn signal lights
Replacing light bulbs ................... 353, 354
Turn signal lever ...........................................176
Wattage ..........................................................407
Fuel
Capacity .......................................................... 401
Fuel gauge ........................................................ 79
Gas station information ......................... 460
Information ................................................... 408
Refueling.......................................................... 196
Type ................................................................... 401
Warning light .............................................. 369
Fuel filler door .................................................196

451What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U Alphabetical Index
451Refueling ..........................................................196
When the fuel filler door cannot be
opened ........................................................ 387
Fuses ................................................................. 349 G
Garage door opener ................................. 298
Gas station information ............................ 460
Gauges ................................................................79
Glove box ....................................................... 282
Glove box light ............................................. 282
Grocery bag hooks .................................... 285 H
Head restraints ............................................... 137
Head-up display.............................................. 90
Headlights ....................................................... 183
Automatic headlight leveling ................ 184
Automatic High Beam ............................. 186
Light switch .................................................... 183
Replacing light bulbs................................ 353
Heated steering wheel ...............................276
Heaters
Automatic air conditioning system ...268
Heated steering wheel............................ 275
Outside rear view mirrors .................... 269
Seat heaters .................................................. 275
High mounted stoplight
Replacing light bulb..................................353
Hill-start assist control ............................... 250
Hood ................................................................. 325
Warning message........................... 107, 374
Hooks
Cargo hooks................................................ 284
Retaining hooks (floor mat)......................24
Horn ................................................................... 140
Hybrid battery (traction battery)
Location............................................................. 64
Specification ................................................. 402
Hybrid battery air vent ................................. 66
Hybrid system .................................................... 61 Emergency shut off system...................... 67
Energy monitor/consumption screen 94
EV drive mode............................................... 171
High voltage components ....................... 64
Hybrid System Indicator ........................... 82
Hybrid system precautions...................... 64
Hybrid vehicle driving tips ....................255
If the hybrid system will not start ....... 385
Overheating .................................................394
Power switch................................................. 168
Regenerative braking ................................. 62
Starting the hybrid system ...................... 168
Vehicle proximity noti fication system. 63
Hybrid System Indicator.............................. 82
Hybrid transmission...................................... 173
I
I/M test ............................................................ 322
Identification
Engine............................................................... 401
Vehicle ........................................................... 400
Ignition switch (Power switch) ................ 168
Illuminated entry system ........................... 278
Immobilizer system........................................ 69
Indicators ............................................................74
Initialization
Engine oil maintenance data................329
Items to initialize ......................................... 429
Tire pressure warning system ...............341
Inside rear view mirror ............................... 140
Instrument panel light control ................... 84
Interior lights.................................................. 278
Intuitive parking assist
Function .......................................................... 227
Warning message ..................................... 229

457What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U Alphabetical Index
457Replacing ........................................................377
Rotating tires ................................................ 337
Size....................................................................406
Snow tires ...................................................... 257
Spare tire............................................ 377, 406
Tire identification number .........................411
Tire pressure warning system .............338
Uniform Tire Quality Grading..............413
Warning light ............................................... 370
Tools.................................................................. 378
Top tether strap................................................57
Total load capacity ......................................400
Towing
Dinghy towing ............................................... 167
Emergency towing ...................................360
Towing eyelet .............................................. 362
Trailer sway control ..................................250
Trailer towing ...................................... 159, 167
TRAC (Traction Control) ........................ 250
Traction battery (Hybrid battery) ............ 64
Hybrid battery (traction battery) air
intake and discharge vents................... 66
Location............................................................. 64
Specification .................................................. 401
Warning messages ..................................... 67
Traction motor (electric motor) ................. 61
Trailer sway control .................................... 250
Trailer towing ........................................ 159, 167
Transmission
Hybrid transmission ................................... 173
Selecting a driving mode....................... 249
Trip meters .........................................................79
Turn signal lights
Replacing light bulbs....................353, 354
Turn signal lever ........................................... 176
Wattage.......................................................... 407
V
Vanity lights
Vanity lights ..................................................288
Wattage.......................................................... 407
Vanity mirrors ...............................................288 Vanity lights ................................................. 288
Vehicle data recordings ..................................7
Vehicle identification number ................400
Vehicle Stability Control (VSC) ........... 250
VSC (Vehicle Stability Control) ........... 250 W
Warning buzzers
Approach warning.................................... 223
Downshifting ..................................................176
Intuitive parking assist .............................. 232
Light reminder .............................................. 184
Open door ..................................................... 107
Seat belt reminder ........................ 369, 370
Vehicle sway warning ................................ 211
Warning lights
ABS ................................................................... 367
Brake hold operated indicator .......... 368
Brake Override System ...........................371
Brake system............................................... 365
Charging system....................................... 365
Drive-Start Control.....................................371
Electric power steering........................... 367
High coolant temperature.................... 366
LDA indicator ............................................. 368
Low engine oil pressure........................ 365
Low fuel level .............................................. 369
Malfunction indicator lamp .................. 366
Master warning light.................................370
Parking brake indicator ......................... 369
PCS warning light ..................................... 367
PKSB OFF indicator ............................... 368
Seat belt reminder light.............. 369, 370
Slip indicator ................................................ 368
SRS ................................................................... 366
Tire pressure ................................................370
Warning messages ..................................... 374
Washer
Checking ....................................................... 332
Low washer fluid warning message332,
374
Preparing and checking before winter