air condition LEXUS NX300 2020 Owners Manual

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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before drivingOpening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
DrivingOperations and advice which are necessary for driving
(Main topics: Starting engine, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat belt,
SRS airbag and headlight aim instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

3TABLE OF CONTENTS
LEXUS NX300 Owners Manual_USA_M78389_en
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4-1. Before driving
Driving the vehicle ........................ 146
Cargo and luggage ...................... 152
Vehicle load limits ......................... 154
Trailer towing (vehicles with towing package) ........................................ 155
Trailer towing (vehicles without towing package) ......................... 163
Dinghy towing ................................ 164
4-2. Driving procedures Engine (ignition) switch .............. 165
Automatic transmission.............. 168
Turn signal lever............................. 172
Parking brake ................................. 172
Brake Hold....................................... 175
ASC (Active Sound Control) .. 177
4-3. Operating the lights and wipers Headlight switch ............................ 178
Automatic High Beam ................. 181
Fog light switch .............................. 184
Windshield wipers and washer 184
Rear window wiper and washer ............................................................ 189
4-4. Refueling Opening the fuel tank cap.......... 1914-5. Using the driving support systems
Lexus Safety System+ 2.0......... 193
PCS (Pre-Collision System) .... 199
LTA (Lane Tracing Assist) ....... 206
LDA (Lane Departure Alert with steering control) .......................... 215
RSA (Road Sign Assist).............. 223
Dynamic radar cruise control with full-speed range.......................... 225
PKSA (Parking Support Alert) 235
Intuitive parking assist ................ 236
Parking Support Brake function (for static objects)................................ 241
BSM (Blind Spot Monitor) ....... 250
Driving mode select switch ..... 258
Driving assist systems ................ 260
All-wheel drive lock switch (AWD models).......................................... 264
4-6. Driving tips Winter driving tips ....................... 266
Utility vehicle precautions........ 269
5-1. Remote Touch Remote Touch................................ 274
5-2. Using the air conditioning system and defogger
Automatic air conditioning system.......................................................... 279
Heated steering wheel/seat heat- ers/seat ventilators................... 287
5-3. Using the interior lights Interior lights list ........................... 289
4Driving
5Interior features

4TABLE OF CONTENTS
LEXUS NX300 Owners Manual_USA_M78389_en
5-4. Using the storage features
List of storage features............... 292
Luggage compartment features ........................................................... 295
5-5. Using the other interior features Other interior features .............. 299
Garage door opener.................. 309
Compass........................................... 315
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 320
Cleaning and protecting the vehi- cle interior .................................... 323
6-2. Maintenance Maintenance requirements ..... 326
General maintenance ................ 327
Emission inspection and mainte- nance (I/M) programs ............ 330
6-3. Do-it-yourself maintenance Do-it-yourself service precautions............................................................ 331
Hood.................................................. 333
Positioning a floor jack............... 333
Engine compartment.................. 335
Tires ................................................... 343
Tire inflation pressure .................. 351
Wheels.............................................. 353
Air conditioning filter..................355
Electronic key battery ................ 356
Checking and replacing fuses 358
Headlight aim................................. 360
Light bulbs ........................................ 3617-1. Essential information
Emergency flashers .................... 366
If your vehicle has to be stopped in an emergency ............................ 366
If the vehicle is trapped in rising water .............................................. 367
7-2. Steps to take in an emergency If your vehicle needs to be towed.......................................................... 369
If you think something is wrong 373
Fuel pump shut off system ........ 374
If a warning light turns on or a warn- ing buzzer sounds..................... 375
If a warning messa ge is displayed
.......................................................... 384
If you have a flat tire .................... 387
If the engine will not start .......... 395
If you lose your keys.................... 396
If the fuel filler door cannot be opened .......................................... 397
If the electronic key does not oper- ate properly ................................. 397
If the vehicle battery is discharged .......................................................... 400
If your vehicle overheats ........... 403
If the vehicle becomes stuck ... 406
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 408
Fuel information

............................. 416
Tire information ............................. 418
6Maintenance and care
7When trouble arises
8Vehicle specifications

16Pictorial index
LEXUS NX300 Owners Manual_USA_M78389_en
Turn signal lever ...................................................................................................... P.172
Headlight switch...................................................................................................... P.178
Headlights/parking lights/tail lights/license plate lights/
daytime running lights ...................................................................................................... P.1 78
Fog lights ..................................................................................................................... .......... P.184
Windshield wiper and washer switch ...................................................... P.184, 189
Usage.......................................................................................................................... .. P.184, 189
Adding washer fluid ......................................................................................................... P.3 42
Warning messages ..........................................................................................................P.384
Emergency flasher switch ................................................................................... P.366
Hood lock release lever ...................................................................................... P.333
Tilt and telescopic steering control switch
*1...................................................P.133
Adjustment ..................................................................................................................... ...... P.133
Driving position memory
*1............................................................................................. P.128
Tilt and telescopic steeri ng lock release lever
*1............................................P.133
Adjustment ..................................................................................................................... ...... P.133
Air conditioning system ....................................................................................... P.279
Usage.......................................................................................................................... ........... P.279
Rear window defogger...................................................................................................P.280
Audio system
*2
*1
: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
E
F
G
H
I
J
K
L

341-1. For safe use
LEXUS NX300 Owners Manual_USA_M78389_en
Front passenger’s seat belt buckle switch
Front impact sensors
Airbag sensor assembly
Your vehicle is equipped with ADVANCED AIRBAGS designed based on the US
motor vehicle safety standards (FMVSS208). The airbag sensor assembly (ECU)
controls airbag deployment based on information obtained from the sensors, etc.
shown in the system components diagram above. This information includes crash
severity and occupant information. As the airbags deploy, a chemical reaction in
the inflators quickly fills the airbags with no n-toxic gas to help restrain the motion of
the occupants.
■If the SRS airbags deploy (inflate)
●Slight abrasions, burn s, bruising, etc., may
be sustained from SRS airbags, due to the
extremely high speed deployment (infla-
tion) by hot gases.
●A loud noise and white powder will be
emitted.
●Parts of the airbag module (steering
wheel hub, airbag cover and inflator) as
well as the front seat s, parts of the front
and rear pillars, and roof side rails, may
be hot for several minutes. The airbag
itself may also be hot.
●The windshield may crack.
●All of the doors will be unlocked.
(  P.101)
●Fuel supply to the engine will be stopped.
( P.374)
●For Lexus Enform Safety Connect sub-
scribers, if any of the following situations
occur, the system is designed to send an
emergency call to the response center,
notifying them of the vehicle’s location
(without needing to push the “SOS” but-
ton) and an agent will attempt to speak
with the occupants to ascertain the level
of emergency and assi stance required. If
the occupants are unable to communi-
cate, the agent automatically treats the
call as an emergency and helps to dis-
patch the necessary emergency services.
(  P.61)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated. • The vehicle is involved in a severe rear-
end collision.
■SRS airbag deployment conditions (SRS
front airbags)
●The SRS front airbags will deploy in the
event of an impact that exceeds the set
threshold level (the level of force corre-
sponding to an approximately 12-18 mph
[20-30 km/h] frontal collision with a
fixed wall that does not move or deform).
However, this threshold velocity will be con-
siderably higher in the following situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can
move or deform on impact
• If the vehicle is involved in an underride
collision, such as a collision in which the
front of the vehicle underrides, or goes
under, the bed of a truck
●Depending on the type of collision, it is
possible that only the seat belt preten-
sioners will activate.
●The SRS front airbags for the front pas-
senger will not activate if there is no pas-
senger sitting in the front passenger seat.
However, the SRS front airbags for the
front passenger may deploy if luggage is
put in the seat, even if the seat is unoccu-
pied.
●The SRS seat cushion airbag on the front
passenger seat will not operate if the
occupant is not wearing a seat belt.
■SRS airbag deployment conditions (SRS
side and curtain shield airbags)
●The SRS side and curtain shield airbags
P
Q
R

351-1. For safe use
LEXUS NX300 Owners Manual_USA_M78389_en
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For safety and security
will deploy in the event of an impact that
exceeds the set thresh old level (the level
of force corresponding to the impact
force produced by an approximately
3300 lb. [1500 kg] vehicle colliding with
the vehicle cabin from a direction per-
pendicular to the vehi cle orientation at an
approximate speed of 12 -18 mph [20 -
30 km/h]).
●Both SRS curtain shield airbags will
deploy in the event of vehicle rollover.
●Both SRS side airbags will deploy in the
event of a severe frontal collision.
●Both SRS curtain shield airbags may also
deploy in the event of a severe frontal col-
lision.
■Conditions under which the SRS air-
bags may deploy (inf late), other than a
collision
The SRS front airbags, SRS side and curtain
shield airbags may also deploy if a serious
impact occurs to the underside of your
vehicle. Some examples are shown in the
illustration.
●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or falling
The SRS curtain shield airbags may also
deploy under the situations shown in the
illustration.
●The angle of vehicle tip-up is marginal.
●The vehicle skids and hits a curb stone.
■Types of collisions that may not deploy
the SRS airbags (SRS front airbags)
The SRS front airbags do not generally
inflate if the vehicle is involved in a side or
rear collision, if it rolls over, or if it is involved
in a low-speed frontal collision. But, when-
ever a collision of any type causes sufficient
forward deceleration of the vehicle, deploy-
ment of the SRS fron t airbags may occur.
●Collision from the side
●Collision from the rear
●Vehicle rollover
■Types of collisions that may not deploy
the SRS airbags (SRS side and curtain
shield airbags)
The SRS side and curtain shield airbags
may not activate if the vehicle is subjected
to a collision from the side at certain angles,
or a collision to the side of the vehicle body
other than the passenger compartment.
●Collision from the side to the vehicle
body other than the passenger compart-
ment
●Collision from the side at an angle

411-1. For safe use
LEXUS NX300 Owners Manual_USA_M78389_en
1
For safety and security
SRS warning light
Front passenger’s seat belt reminder light
For the U.S.A.
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
For Canada“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification sys-
tem. This system detects the conditions of the front passenger seat and acti-
vates or deactivates the front passenger airbag and seat cushion airbag in the
front passenger side.
System components
A
B
C
D
E
F

421-1. For safe use
LEXUS NX300 Owners Manual_USA_M78389_en
■Adult*1
■Child*4
Condition and operation in the front passenger occupant classification
system
Indicator/warning
light
“AIR BAG ON” and “AIR BAG OFF” indica- tor lights“AIR BAG ON”
SRS warning lightOff
Front passenger’s seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbag
ActivatedSide airbag on the front passenger seat
Curtain shield airbag in the front passenger
side
Seat cushion airbag in the front passenger sideActivated *2 or deac-
tivated
*3
Front passenger’s seat belt pretensioner and force limiterActivated
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indica- tor lights“AIR BAG OFF” or
“AIR BAG ON”
*4
SRS warning lightOff
Front passenger’s seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbagDeactivated or acti-
vated
*4
Side airbag on the front passenger seat
ActivatedCurtain shield airbag in the front passenger
side
Seat cushion airbag in the front passenger sideDeactivated or acti-
vated
*2, 4
Front passenger’s seat belt pretensioner and force limiterActivated

1183-2. Opening, closing and locking the doors
LEXUS NX300 Owners Manual_USA_M78389_en
tronic key from re
ceiving radio waves.
Press twice while pressing and
holding .
Confirm that the elec tronic key indicator
flashes 4 times. While the battery-saving
mode is set, the smar t access system with
push-button start cannot be used. To cancel
the function, press any of the electronic key
buttons.
■Conditions affe cting operation
The smart access system with push-button
start, wireless remote control and immobi-
lizer system use weak radio waves. In the
following situations, the communication
between the electronic key and the vehicle
may be affected, preventing the smart
access system with push -button start, wire-
less remote control and immobilizer system
from operating properly. (Ways of coping:
 P.397)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other faci lity that generates
strong radio waves or electrical noise
●When the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil
inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless ke ys (that emit radio
waves) are being used nearby
●When carrying the electronic key together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless
phone or other wireless communication
devices
• Another vehicle’s electronic key or a
wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the rear
window
●When the electronic key is placed near a
battery charger or electronic devices
■Note for the entry function
●Even when the electronic key is within the
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win-
dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the back door is
opened.
• The electronic key is on the instrument panel, luggage room, floor, or in the door
pockets or glove box when the engine is
started or engine switch modes are
changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the door
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone.
●Even if the electronic key is not inside the
vehicle, it may be po ssible to start the
engine if the electronic key is near the
window.
●The doors may unlock if a large amount

1624-1. Before driving
LEXUS NX300 Owners Manual_USA_M78389_en
prolonged turning. Have someone
guide you when reversing to reduce
the risk of an accident.
 As stopping distance is increased
when towing a trailer, vehicle-to
vehicle distance should be
increased. For each 10 mph (16
km/h) of speed, allow at least one
vehicle and trailer length.
 Avoid sudden braking as you may
skid, resulting in the trailer jackknif-
ing and a loss of vehicle control. This
is especially true on wet or slippery
surfaces.
 Avoid jerky starts or sudden accel-
eration.
 Avoid jerky steering and sharp
turns, and slow down before making
turn.
 Note that when making a turn, the
trailer wheels will be closer than the
vehicle wheels to the inside of the
turn. Compensate by making a
wider than normal turning radius.
 Slow down before making a turn, in
cross winds, on wet or slippery sur-
faces, etc.
Increasing vehicle speed can desta-
bilize the trailer.
 Take care when passing other vehi-
cles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer,
and be sure you have plenty of room
before changing lanes.
 To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking, do not put the transmission in D. If in
the M mode, the transmission shift
range position must be in 4 or lower.
(
P.168)
 Instability happens more frequently
when descending steep or long
downhill grades. Before descend-
ing, slow down and downshift. Do
not make sudden downshifts while
descending steep or long downhill
grades.
 Avoid holding the brake pedal down
too long or applying the brakes too
frequently. This could cause the
brakes to overheat and result in
reduced braking efficiency.
 Due to the added load of the trailer,
your vehicle’s engine may overheat
on hot days (at temperatures over
85°F [30°C]) when driving up a
long or steep grade. If the engine
coolant temperature gauge indi-
cates overheating, immediately turn
off the air conditioning (if in use),
pull your vehicle off the road and
stop in a safe spot. ( P.403)
 Always place wheel blocks under
both the vehicle’s and the trailer’s
wheels when parking. Put the trans-
mission in P and apply the parking
brake. Avoid parking on a slope, but
if unavoidable, do so only after per-
forming the following:
1 Apply the brakes and keep them
applied.
2 Have someone place wheel blocks
under both the vehicle’s and trailer’s
wheels.