traction control LEXUS NX300h 2020 User Guide

4197-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78530_en
7
When trouble arises
1 Stop the hybrid system. Shift the
shift lever to P and set the parking
brake.
2 Remove the mud, snow or sand
from around the front wheels.
3 Place wood, stones or some other
material under the front wheels to
help provide traction.
4 Restart the hybrid system.
5 Shift the shift lever to D or R,
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.
■When it is difficult to free the vehicle
Press to turn off TRAC. ( P.271)
WARNING
●After the hybrid system has been
turned off, check that the “READY”
indicator is off. When the hybrid sys-
tem is operating, the gasoline engine
may automatically start, or the cooling
fan may suddenly operate even if the
gasoline engine stops. Do not touch or
approach rotating parts such as the
fan, which may lead to fingers or cloth-
ing (especially a tie, a scarf or a muf-
fler) getting caught, resulting in serious
injury.
●Do not loosen the coolant reservoir
cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine/power control
unit coolant
Add coolant slowly after the hybrid sys-
tem has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too
quickly can cause damage to the hybrid
system.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.
If the vehicle becomes stuck
Carry out the following proce-
dures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Recovering procedure

4358-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_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

470Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78530_en
B
Back door .......................................................... 114 Wireless remote control............................117
Back-up lights Replacing light bulb.................................. 374
Battery (12-volt battery) If the 12-volt battery is discharged ...... 412
Preparing and checking before winter ..........................................................................277
Replacing ......................................................... 414
Warning light ...............................................386
Battery (traction battery) ............................ 70
Blind Spot Monitor (BSM)......................... 261 Blind Spot Monitor function................. 263
Rear Cross Traffic Alert function....... 265
Bottle holders................................................ 304
Brake Brake Hold .................................................... 186
Fluid .................................................................. 427
Parking brake ............................................... 183
Regenerative braking ................................. 68
Warning light ............................................... 387
Brake assist .................................................... 270
Brake Hold ...................................................... 186
Break-in tips..................................................... 157
Brightness control Instrument panel light control ................88
BSM (Blind Spot Monitor)......................... 261 Blind Spot Monitor function................. 263
Rear Cross Traffic Alert function....... 265
BSM (Blind Spot Monitor) main switch261
C
Card key .......................................................... 106
Care Aluminum wheels ..................................... 330
Exterior............................................................333
Interior .............................................................333
Seat belts ........................................................333
Cargo capacity........................... 161, 164, 422
Cargo hooks ................................................. 306
Cargo net hooks .......................................... 306
Chains .............................................................. 278
Child restraint system....................................47 Booster seats installation .......................... 53
Convertible seats installation .................. 52
Front passenger occupa nt classification
system................................................................ 41
Infant seats installation ..................................51
Installing CRS with LATCH anchors .55
Installing CRS with seat belts ....................51
Installing CRS with top tether strap..... 57
LATCH anchors ...........................................55
Child safety ........................................................47 12-volt battery precautions ........ 353, 415
Airbag precautions ...................................... 37
Back door precautions .............................. 114
Child restraint system ................................. 47
How your child should wear the seat belt............................................................................. 28
Installing child restraints............................. 47
Moon roof precautions............................ 152

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