2020 LEXUS NX300 traction control

2604-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the
brakes are applied suddenly, or if the
brakes are applied while driving on a
slippery road surface
■Brake assist
Generates an increased level of brak-
ing force after the brake pedal is
depressed when the system detects a
panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving sudden ly or turning on
slippery road surfaces.
■Enhanced VSC (Enhanced Vehi-
cle Stability Control)
Provides cooperative control of the
ABS, TRAC, VSC and EPS.
Helps to maintain directional stability
when swerving on slippery road sur-
faces by controlling steering perfor-
mance.
■Trailer Sway Control
Helps the driver to control trailer sway
by selectively applying brake pressure
for individual wheels and reducing
driving torque when trailer sway is
detected.
■TRAC (Traction Control)
Helps to maintain drive power and pre-
vent the drive wheels from spinning
when starting the vehicle or accelerat-
ing on slippery roads
■Active Cornering Assist (ACA)
Helps to prevent the vehicle from drift-
ing to the outer side by performing
inner wheel brake control when
attempting to accele rate while turning
■Hill-start assist control
Helps to reduce the backward move-
ment of the vehicle when starting on an
uphill
■EPS (Electric Power Steering)
Employs an electric motor to reduce
the amount of effort needed to turn the
steering wheel
■Dynamic Torque Control AWD
system (if equipped)
Automatically switches from front-
wheel drive to all-wheel drive (AWD)
according to the driving conditions,
helping to ensure reliable handling and
stability. Examples of conditions where
the system will switch to AWD are
when cornering, going uphill, starting
off or accelerating, and when the road
surface is slippery due to snow, rain,
etc.
Driving assist systems
To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to
various driving situations. Be aware,
however, that these systems are
supplementary and should not be
relied upon too heavily when oper-
ating the vehicle.
Summary of the driving assist
systems

2614-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
4
Driving
■AVS (Adaptive Variable Suspen-
sion System) (if equipped)
By independently controlling the
damping force of the shock absorbers
for each of the 4 wheels according to
the road and driving conditions, this
system helps riding comfort with supe-
rior vehicle stabilit y, and helps good
vehicle posture. If Sport S+ mode is
selected using the dr iving mode select
switch, the damping force will become
more suitable for sporty driving.
(  P.258)
■PCS (Pre-Collision System)
 P.199
■BSM (Blind Spot Monitor) (if
equipped)
 P.250
■When the TRAC/VSC/Trailer Sway
Control systems are operating
The slip indicator light will flash while the
TRAC/VSC/Trailer Sway Control systems
are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt or snow,
the TRAC system may reduce power from
the engine to the wheels. Pressing to
turn the system off may make it easier for
you to rock the vehicle in order to free it.
To turn the TRAC system off, quickly press
and release . The “Traction Co
ntrol Turned Off” will be
shown on the multi-information display.
Press again to turn the system back on.
■Turning off both TRAC, VSC and Trailer
Sway Control systems
To turn the TRAC, VSC and Trailer Sway
Control systems off, press and hold for
more than 3 seconds while the vehicle is
stopped. The VSC OFF indicator light will
come on and the “Traction Control Turned
Off” will be shown on the multi-information
display.
* Press again to turn the system
back on.
*: On vehicles with pre-collision system, pre-collision brake assist and pre-colli-
sion braking will also be disabled. The
PCS warning light will come on and the
message will be shown on the multi-infor-
mation display. ( P.205)
■When the message is displayed on the
multi-information display showing that
TRAC has been disabled even if has
not been pressed
TRAC is temporary deactivated. If the infor-
mation continues to show, contact your
Lexus dealer.

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 Index465
Outside rear view mirror switches .....136
Paddle shift switches ..................................170
Parking brake switch ................................. 172
PCS switch .....................................................201
Power back door opener and closer
switch..............................................................107
Power window switch .............................. 138
Rear window and outside rear view mir- ror defoggers switch ............................280
Rear window wiper and washer switch .......................................................................... 189
Seat heater switches ................................ 287
“SOS” button .................................................... 61
Tire pressure warning reset switch .. 349
Vehicle-to-vehicle distance switch .. 225
VSC off switch .............................................. 261
Window lock switch ..................................139
Windshield wipers and washer switch ................................................................184, 189
T
Tachometer........................................................79
Tail lights Light switch .....................................................178
Replacing light bulbs................................ 362
Theft deterrent system Alarm .................................................................. 70
Engine immobilizer system ..................... 68
Tire inflation pressure Maintenance data........................................413
Warning light .............................................. 380
Tire information ............................................. 418 Glossary......................................................... 422
Size.................................................................... 420
Tire identification number .......................419
Uniform Tire Quality Grading.............. 421 Tire pressure warning system
Function ..........................................................345
Initializing........................................................349
Installing tire pres sure warning valves
and transmitters...................................... 348
Registering ID codes .............................. 350
Tire pressure warning reset switch...349
Warning light .............................................. 380
Tires................................................................... 343 Chains ............................................................. 267
Checking .......................................................343
Glossary ......................................................... 422
If you have a flat tire ..................................387
Inflation pressure ............................... 351, 413
Replacing .......................................................343
Rotating tires ................................................344
Size ......................................................................413
Snow tires ......................................................266
Spare tire ............................................. 387, 413
Tire identification number....................... 419
Tire pressure warning system .............345
Uniform Tire Quality Grading ..............421
Warning light .............................................. 380
Tools..................................................................388
Top tether strap............................................... 58
Total load capacity ......................................408
Towing Dinghy towing .............................................. 164
Emergency towing................................... 369
Towing eyelet............................................... 372
Trailer Sway Control............................... 260
Trailer towing ......................................155, 163
TRAC (Traction Control) ........................ 260