2020 LEXUS NX300 service

3697-2. Steps to take in an emergency
LEXUS NX300 Owners Manual_USA_M78389_en
7
When trouble arises
7-2.Steps to take in an emergency
If your vehicle needs to be
t
owed
If towing is ne cessary, we recom-
mend having your vehicle towed by
your Lexus dealer or commercial
towing service, using a wheel-lift
type truck or flatbed truck.
Use a safety chain system for all
towing, and abide by all state/pro-
vincial and local laws.
2WD models: If towing your vehicle
with a wheel-lift type truck from the
front, the vehicle’s rear wheels and
axles must be in good conditions.
(  P.369, 371)
If they are damaged, use a towing
dolly or flatbed truck.
AWD models: If towing your vehi-
cle with a wheel-lift type truck, use
a towing dolly. ( P.369, 371)
WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury.
■When towing the vehicle
2WD models
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged.
AWD models
Be sure to transport the vehicle with all
four wheels raised off the ground. If the
vehicle is towed with the tires contacting
the ground, the driv etrain or related
parts may be damaged, the vehicle may
fly off the truck.
■While towing
●When towing using a cables or chains,
avoid sudden starts, etc. which place
excessive stress on the towing eyelets,
cables or chains. The towing eyelets,
cables or chains may become dam-
aged, broken debris may hit people,
and cause serious damage.

3707-2. Steps to take in an emergency
LEXUS NX300 Owners Manual_USA_M78389_en
The following may indicate a problem
with your transmission. Contact your
Lexus dealer or commercial towing
service before towing. (P.369)
 The engine is running but the vehi-
cle does not move.
 The vehicle makes an abnormal
sound.
Do not tow with a sling-type truck to
prevent body damage.
WARNING
●Do not turn the engine switch off.
There is a possibility that the steering
wheel is locked and cannot be oper-
ated.
■Installing towing eyelets to the vehi-
cle
Make sure that towing eyelets are
installed securely.
If not securely installed, towing eyelets
may come loose during towing.
NOTICE
■To prevent damage to the vehicle
when towing using a wheel-lift type
truck
●Do not tow the vehicle from the rear
when the engine switch is off.
The steering lock mechanism is not
strong enough to hold the front wheels
straight.
●When raising the vehicle, ensure ade-
quate ground clearance for towing at
the opposite end of the raised vehicle.
Without adequate clearance, the vehi-
cle could be damaged while being
towed.
■To prevent damage to the vehicle
when towing with a sling-type truck
Do not tow with a sling-type truck, either
from the front or rear.
■Recreational towing (behind motor
home, etc.)
Never dinghy tow your vehicle to pre-
vent causing serious damage to the
Dynamic Torque Control AWD system
(AWD models) and transmission.
(  P.164)
Situations when it is necessary to
contact dealers before towing
Towing with a sling-type truck

4168-1. Specifications
LEXUS NX300 Owners Manual_USA_M78389_en
■Gasoline quality
In very few cases, driveability problems may
be caused by the brand of gasoline you are
using. If driveability problems persist, try
changing the brand of gasoline. If this does
not correct the problem, consult your Lexus
dealer.
■Recommendation of the use of gasoline
containing detergent additives
●Lexus recommends the use of gasoline
that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains
minimum detergent additives to clean
and/or keep clean intake systems, per
EPA’s lowest additive s concentration pro-
gram.
●Lexus strongly recommends the use of
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to
the official websit e www.toptiergas.com.
■Recommendation of the use of low
emissions gasoline
Gasolines containing oxygenates such as
ethers and ethanol, as well as reformulated
gasolines, are available in some cities.
These fuels are typically acceptable for use, providing they meet other fuel require-
ments.
Lexus recommends these fuels, since the
formulations allow for reduced vehicle
emissions.
■Non-recommendation of the use of
blended gasoline
●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from
any pump labeled
E30 (30% ethanol ), E50 (50% etha-
nol ), E85 (85% ethanol ) (which
are only some examples of fuel contain-
ing more than 15% ethanol).
●If you use gasohol in your vehicle, be sure
that it has an octane rating no lower than
91.
●Lexus does not recommend the use of
gasoline containing methanol.
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
ing for a short time wh ile accelerating or
driving uphill. This is normal and there is
Fuel information
You must only use unleaded gaso-
line in your vehicle.
Select premium unleaded gasoline
with an octane rating of 91
(Research Octane Number 96) or
higher required for optimum
engine performance and fuel econ-
omy. If the octane ra ting is less than
91,damage to the engine may occur
and may void the vehicle warranty.
At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.
A
BC

4218-1. Specifications
LEXUS NX300 Owners Manual_USA_M78389_en
8
Vehicle specifications
Chafer
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Your Lexus dealer will help answer any
questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performa nce of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades for this
tire are established for a tire that is prop-
erly inflated and not overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
Uniform Tire Quality Grading
K

LEXUS NX300 Owners Manual_USA_M78389_en
Alphabetical Index461
Lever
Auxiliary catch lever ................................. 333
Hood lock release lever......................... 333
Shift lever......................................................... 168
Turn signal lever ........................................... 172
Wiper lever.................................................... 184
Lexus Enform Remote.................................. 66
LEXUS Enform Safety Connect ................ 61
Lexus Enform Service Connect ................67
Lexus Safety System+ 2.0 Automatic High Beam ............................... 181
Dynamic radar cruise control with full-speed range .............................................. 225
LDA (Lane Departure Alert with steering control) ..........................................................215
LTA (Lane Tracing Assist)....................206
PCS (Pre-Collision System)..................199
RSA (Road Sign Assist) ......................... 223
License plate lights Light switch .....................................................178
Replacing light bulbs................................ 362
Light Automatic High Beam system............... 181
Cornering lights .......................................... 180
Fog light switch ............................................ 184
Headlight switch ..........................................178
Illuminated entry system.........................289
Interior light list ............................................289
Interior lights.................................................290
Personal lights .............................................290
Replacing light bulbs................................ 362
Turn signal lever ........................................... 172
Vanity lights .................................................. 299
Wattage............................................................415
Welcome light illumination control ..... 101
Light bulbs Replacing .............................................361, 362
Wattage............................................................415
LTA (Lane Tracing Assist) ....................... 206
Luggage cover ............................................. 297M
Maintenance Do-it-yourself maintenance .................. 331
General maintenance ............................. 327
Maintenance data ..................................... 408
Maintenance requirements ..................326
Malfunction indicator la mp ..................... 376
Meter Head-up display........................................... 88
Indicators........................................................... 74
Instrument panel light control.................. 81
Meters................................................................. 79
Multi-information display .......................... 82
Warning lights .............................................375
Warning messages.................................. 384
Micro dust and pollen filter ..................... 284
Mirrors Inside rear view mirror ..............................134
Outside rear view mirror defoggers280
Outside rear view mirrors...................... 136
Vanity mirrors ..............................................299
Moon roof Jam protection function ............................. 141
Operation ....................................................... 140
Warning message .......................... 142, 384
Multi-information display Clock................................................................... 79
Drive information ..........................................83
Dynamic radar cruise control with full-
speed range .............................................. 225
Language ...................................................... 430
LDA (Lane Departure Alert with steering control) ......................................................... 215
LTA (Lane Tracing Assist) ................... 206
Warning messages.................................. 384
N
Noise from under vehicle ...............................6

464Alphabetical Index
LEXUS NX300 Owners Manual_USA_M78389_en
Sensor
Automatic High Beam system............... 181
BSM (Blind Spot Monitor) ................... 252
Inside rear view mirror..............................135
Intuitive parking assist.............................. 236
Kick sensor..................................................... 108
Radar sensor..................................................193
Rain-sensing windshield wipers.......... 188
Service reminder message ..................... 326
Shift lever ......................................................... 168
Shift lock system.............................................169
Side airbags ...................................................... 32
Side doors........................................................ 100
Side marker lights Light switch .....................................................178
Replacing light bulbs................................ 362
Side mirrors .....................................................136 Adjusting and folding ................................136
BSM (Blind Spot Monitor) ...................250
Side turn signal lights Replacing light bulbs................................ 362
Turn signal lever ........................................... 172
Smart access system with push-button start.................................................................... 116Antenna location........................................... 116
Entry functions................................... 100, 105
Starting the engine ..................................... 165
Warning message.....................................384
Snow tires ....................................................... 266
Spare tire Inflation pressure..........................................413
Storage location ........................................ 388
Spark plug ......................................................... 411
Specifications ................................................408
Speedometer ....................................................79 Sport mode .................................................... 258
Steering wheel
Adjustment ..................................................... 133
Heated steering wheel ............................ 287
Power easy access system .................... 128
Stop lights Replacing light bulbs ................................362
Storage feature ............................................ 292
Storage precautions................................... 292
Stuck If the vehicle becomes stuck ............... 406
Sun visors ........................................................ 299
Switch ASC (Active Sound Control) dial....... 177
Automatic High Beam switch ................ 181
Brake hold switch ........................................175
BSM (Blind Spot Monitor) main switch......................................................................... 250
Cruise control switch............................... 225
Door lock switch ......................................... 102
Driving mode select switch ................. 258
Driving position memory switches .... 128
Emergency flashers switch .................. 366
Engine switch ................................................ 165
Fog light switch ............................................ 184
Garage door opener switches.......... 309
Heated steering wheel ............................ 287
HUD (Head-up display) switches ...... 88
Ignition switch ............................................... 165
Intuitive parking assist switch ...............236
LDA switch .....................................................219
Light switches ............................................... 178
LTA switch ....................................................... 211
Meter control switches .............................. 82
Moon roof switches................................... 140