engine oil LEXUS NX300h 2021 Owner's Manual

4007-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
pedal has been depressed and the shift
lever is in N. Release the accelerator pedal
and shift the shift lever to D, S or R.
■If “Depress Brake When Vehicle Is
Stopped Hybrid Syst
em May Overheat”
is shown
Message is displayed when the accelerator
pedal is depressed to maintain the vehicle
position when stopped on a upward slope,
etc.
If this continues, th e hybrid system may
overheat.
Release the accelerator pedal and depress
the brake pedal.
■If a message that indicates the malfunc-
tion of front camera is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.209, 391)
●PCS (Pre-Collision System)
●LTA (Lane Tracing Assist) (if equipped)
●LDA (Lane Departure Alert with steering
control) (if equipped)
●Automatic High Beam
●RSA (Road Sign Assist) (if equipped)
●Dynamic radar cruise control with full-
speed range
■If “RSA malfunction Visit Your Dealer” is
shown
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
■If “Radar Cruise Control Unavailable
See Owner’s Manual” is shown
The dynamic radar cruise control with full-
speed range system is suspended tempo-
rarily or until the problem shown in the mes-
sage is resolved. (causes and coping
methods: P.209)
■If “Radar Cruise Control Unavailable” is
shown
The dynamic radar cruise control with full-
speed range system cannot be used tempo-
rarily. Use the system when it becomes
available again.
■If “Oil Maintenance Required Soon” is
shown
Indicates that the engine oil is scheduled to
be changed. (The indicator will not work
properly unless the oil maintenance data
has been reset.)
Check the engine oil, and change if neces-
sary. After changing th e engine oil, the oil
change system should be reset. ( P.350)
■If “Oil Maintenance Required” is shown
Indicates that the engine oil should be
changed. (After the engine oil is changed
and the oil maintenance data has been
reset.)
Check and change the en gine oil, and oil fil-
ter by your Lexus dealer. After changing the
engine oil, the oil change system should be
reset. ( P.350)
■If “See Owner’s Manual” is shown
●If the following messages are shown, fol-
lowing the instruct ions, accordingly.
• “Engine Coolant Temp High” ( P.418)
●If the following messages are shown,
there may be a malfunction.
Immediately have the vehicle inspected
by your Lexus dealer.
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Braking Power Low”
• “Smart Access System Malfunction”
●If “Aux Battery Low” is shown
• When the display goes off after several
seconds
*
Maintain the hybrid system operation for
more than 15 minutes and charge the 12-
volt battery.
• When the display does not go off Start up the hybrid system using the pro-
cedures for “If the 12-volt battery is dis-
charged” ( P.414).
*: Displays for about 6 seconds
●If “Maintenance required for Traction bat-
tery cooling parts” is shown, the filters
may be clogged, the air intake vents may
be blocked, or there may be a gap in the
duct. Therefore, perform the following
correction procedure.
• If the air intake vents of the hybrid battery

4268-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
Front
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.
Electric motor (traction motor)
TypePermanent magnet synchronous motor
Maximum output105 kW
Maximum torque199 ft•lbf (270 N•m, 27.5 kgf•m)
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.)

4278-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
8
Vehicle specifications
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
as an example):
• The 0W in 0W-20 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 20 in 0W-20 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:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you
should use.
A
Cooling system
Capacity*
Gasoline
engine
Vehicles with towing package
7.7 qt. (7.3 L, 6.4 Imp.qt.)
Vehicles without towing package
7.1 qt. (6.7 L, 5.9 Imp.qt.)
Power con-
trol unit3.3 qt. (3.1 L, 2.7 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 nonborate
coolant with long-life hy brid organic acid tech-
nology
Do not use plain water alone.

4388-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
nation, 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

474Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78578_en
Replacing the battery...............................369
Electronically Controlled Brake System (ECB) .............................................................272
Emergency flashers ....................................380
Emergency, in case of If a warning buzzer sounds ................. 388
If a warning light turns on ..................... 388
If a warning message is displayed.....398
If the 12-volt battery is discharged ...... 414
If the electronic key does not operate properly......................................................... 412
If the fuel filler door cannot be opened .............................................................................411
If the hybrid system will not start ........409
If the vehicle is trapped in rising water .......................................................................... 381
If you have a flat tire .................................. 402
If you lose your keys.....................................411
If you think something is wrong .........386
If your vehicle becomes stuck............... 421
If your vehicle has to be stopped in an
emergency ............................................... 380
If your vehicle needs to be towed .....383
If your vehicle overheats ......................... 418
Energy monitor ............................................... 99
Engine .............................................................. 425 Accessory mode ......................................... 177
Compartment .............................................348
Engine switch................................................. 174
Hood................................................................ 346
How to start the hybrid system ............ 174
Identification number ............................... 425
If your vehicle has to be stopped in an
emergency ............................................... 380
Ignition switch (power switch) .............. 174
Overheating.................................................. 418
Power switch ................................................. 174
Engine compartment cover .................... 349
Engine coolant Capacity ......................................................... 427
Checking .........................................................351
Preparing and checking before winter .......................................................................... 279
Warning light .............................................. 389
Engine coolant temperature gauge ....... 84
Engine oil Capacity ......................................................... 426
Checking .......................................................349
Warning light .............................................. 389
Engine switch .................................................. 174
EPS (Electronic Power Steering) Function .......................................................... 272
Warning light .............................................. 390
EV drive mode................................................178
EV indicator ...................................................... 68
Event data recorder (E DR) ........................... 8
F
Flat tire ............................................................. 402
Tire pressure warning system ............ 359
Floor mats .......................................................... 24
Fluid Brake ................................................................ 429
Transmission.................................................428
Washer ...........................................................353
Fog lights Replacing light bulbs ................................375
Switch................................................................ 196
Front passenger occupant classification system ................................................................ 41
Front passenger’s seat belt reminder light .......................................................................... 393
Front seat heaters........................................300
Front seats ........................................................132 Adjustment ......................................................132
Cleaning .........................................................335
Correct driving posture ............................ 25
Driving position memory ........................ 138
Head restraints............................................... 141
Power easy access system .................... 138
Seat heaters ................................................. 300
Seat position memory .............................. 138
Front side marker lights Light switch .................................................... 190

LEXUS NX300h Owners Manual_USA_M78578_en
Alphabetical Index477
Vanity lights .................................................... 312
Wattage............................................................ 431
Welcome light illumination control ....... 111
Light bulbs Replacing ........................................... 375, 376
Wattage............................................................ 431
LTA (Lane Tracing Assist) .........................218
Luggage cover .............................................. 310
M
Maintenance Do-it-yourself maintenance ................. 344
General maintenance .............................340
Maintenance data...................................... 424
Maintenance requirements .................. 339
Malfunction indicator lamp ..................... 389
Meter Head-up display ........................................... 95
Indicators ..........................................................80
Instrument panel light control ................88
Meters ................................................................ 84
Multi-information display .......................... 89
Warning lights ............................................ 388
Warning messages ..................................398
Micro dust and pollen filter ..................... 297
Mirrors Inside rear view mirror.............................. 144
Outside rear view mirror defoggers 292
Outside rear view mirrors ......................146
Vanity mirrors................................................ 312
Moon roof Jam protection function............................. 151
Operation....................................................... 150
Warning message.......................... 152, 398
Multi-information display Clock .................................................................. 84
Drive information .......................................... 90
Dynamic radar cruise control with full-speed range .............................................. 237
Energy monitor.............................................. 99
Language....................................................... 446
LDA (Lane Departure Alert with steering control) ........................................................ 227
LTA (Lane Tracing Assist) ..................... 218
Warning messages.................................. 398
N
Noise from under vehicle ...............................6
O
Odometer ......................................................... 84
Oil Engine oil........................................................ 426
Rear differential oil......... ..................... ....... 429
Opener Back door ......................................................... 117
Fuel filler door ..............................................203
Hood ................................................................346
Outside rear view mirrors .........................146 Adjusting and folding................................ 146
Blind Spot Monitor (BSM).................... 262
Linked mirror functi on when reversing
............................................................................147
Mirror position memory .......................... 138
Outside rear view mirror defoggers 292
Outside temperature display .................... 84
Overheating ................................................... 418
P
Paddle shift switches ....................................182
Panic mode ..................................................... 108
Parking brake Operation ....................................................... 184
Parking brake engaged warning buzzer/message ....................................................... 185
Warning light ...............................................392
Parking lights Light switch .................................................... 190
Replacing light bulb ..................................375
Parking Support Brake fu nction (for static
objects) ......................................................... 253 Enabled/disabled on the system .......254

LEXUS NX300h Owners Manual_USA_M78578_en
Alphabetical Index481
Towing
Dinghy towing ............................................... 173
Emergency towing ...................................383
Towing eyelet ............................................. 385
Trailer Sway Control ............................... 273
Trailer towing ...................................... 165, 173
TRAC (Traction Control) ........................ 273
Traction battery (Hybrid battery) ............ 70 Hybrid battery (traction battery) air intake and discharge vents....................72
Location............................................................. 70
Specification ................................................. 426
Warning messages ......................................73
Traction motor (electric motor) ................67
Trailer Sway Control.................................. 273
Trailer towing ........................................ 165, 173
Transmission Hybrid transmission .................................. 180
Selecting a driving mode....................... 270
Trip meters ........................................................ 84
Turn signal lights Replacing light bulbs.................... 375, 376
Turn signal lever .......................................... 183
Wattage............................................................ 431
V
Vanity lightsVanity lights .................................................... 312
Wattage............................................................ 431
Vanity mirrors .................................................312 Vanity lights .................................................... 312
Vehicle data recordings ..................................7
Vehicle identification number ................ 424
Vehicle Stability Control (VSC) ............272
VSC (Vehicle Stabilit y Control) ............272
W
Warning buzzers
Approach warning.................................... 243
Downshifting ................................................. 183
Intuitive parking assist.............................. 252 Light reminder ................................................ 191
Open door ......................................................... 111
Seat belt reminder .....................................393
Vehicle sway warning ................... 222, 231
Warning lights ABS .................................................................. 390
Brake hold operated indicator ...........392
Brake Override System ........................ 395
Brake system............................................... 388
Charging system....................................... 388
Drive-Start Control.................................. 395
Electric power steering.......................... 390
High coolant temperature.................... 389
Hybrid system............................................. 388
LDA indicator ............................................... 391
Low engine oil pressure........................ 389
Low fuel level ...............................................393
LTA indicator ................................................ 391
Malfunction indicator lamp .................. 389
Master warning light.................................394
Parking brake indicator ..........................392
PCS warning light ...................................... 391
PKSB OFF indicator ................................392
Seat belt reminder light...........................393
Slip indicator .................................................392
SRS ................................................................... 390
Tire pressure ................................................394
Warning messages ..................................... 398
Washer Checking .......................................................353
Low washer fluid warning message353, 398
Preparing and checking before winter .......................................................................... 279
Switch......................................................196, 201
Washing and waxing.................................. 332
Weights Cargo capacity ........................161, 164, 424
Load limits ...........................................164, 424
Weights .......................................................... 424
Wheels ............................................................. 367 Replacing wheels ....................................... 367

484
LEXUS NX300h Owners Manual_USA_M78578_en
GAS STATION INFORMATION
Auxiliary catch lever (P.346)
Back door opener switch
* (  P.117)
Fuel filler door ( P.203)
Hood lock release lever ( P.346)
Tire inflation pressure ( P.430)
*: Vehicles with power back door
Fuel tank capacity (Ref-
erence)14.8 gal. (56 L, 12.3 Imp.gal.)
Fuel typeUnleaded gasoline onlyP.425
Cold tire inflation pres-
sureP.430
Engine oil capacity
(Drain and refill — ref-
erence)
P.426
Engine oil typeP.426
A
B
C
D
E