2020 LEXUS NX300 center

3626-3. Do-it-yourself maintenance
LEXUS NX300 Owners Manual_USA_M78389_en
■Bulbs that need to be replaced by
the Lexus dealer
 Headlights
 Front turn signal lights (LED type)
 Parking lights and Daytime running
lights
 Front fog lights
 Cornering lights (if equipped)
 Front side marker lights (LED type)
 Side turn signal lights
 Stop/tail lights
 Rear side marker lights
 Back-up light
 Rear turn signal light
 High mounted stoplight
 License plate lights
 Outer foot lights
■LED lights
The lights other than the front side marker
lights (bulb type) and front turn signal lights
(bulb type) each consist of a number of
LEDs. If any of the LEDs burn out, take your
vehicle to your Lexus dealer to have the
light replaced.
■Condensation build-up on the inside of
the lens
Temporary condensation build-up on the
inside of the headlight lens does not indi-
cate a malfunction. Contact your Lexus
dealer for more information in the following
situations:
●Large drops of water ha ve built up on the
inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs
 P.359
Before replacing, check the wattage of
the light bulb to be replaced. ( P.415)
■Front side marker lights (bulb type)
1 Turn the bulb base counterclock-
wise.
2 Remove the light bulb.
3 When installing, reverse the steps
listed.
■Front turn signal lights (bulb type)
1 Open the hood and remove the
cover for engine compartment
cover. ( P.333, 336)
2 Remove the cover.
Push the center of the clip and remove
Replacing light bulbs
A

3636-3. Do-it-yourself maintenance
LEXUS NX300 Owners Manual_USA_M78389_en
6
Maintenance and care
the clip and cover .
3Turn the bulb base counterclock-
wise.
4 Remove the light bulb.
5 Replace the light bulb. 6
Turn clockwise and set the bulb
base.
7 Attach the clip to the cover.
Push up on the center of the clip and attach
the clip .
8Attach the cover.
Align the 2 tabs positions and close the
cover and fix the cover by pushing the
center of the clip .
9Install the engine compartment
cover. ( P.336)
B
A
A
B

3807-2. Steps to take in an emergency
LEXUS NX300 Owners Manual_USA_M78389_en
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of 12
mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Th
en, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 90 more seconds.
■Rear passengers’ seat belt reminder light*1 (warning buzzer*2)
*1: This light illuminates on the center panel.
*2: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear passengers that his
or her seat belt is not fastened. The buzzer sounds for 6 seconds after the vehicle reaches a
speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 24 more seconds.
■Master warning light (warning buzzer)
■Tire pressure warning light
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning lightDetails/Actions
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
P.384
Warning lightDetails/Actions
When the light comes on:
Low tire inflation pressure such as
Natural causes ( P.382)
 Flat tire ( P.387)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have th e system checked by your
Lexus dealer.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pressure warning system
(  P.382)
 Have the system checked by your Lexus dealer.

3907-2. Steps to take in an emergency
LEXUS NX300 Owners Manual_USA_M78389_en
the handle indicated by until it does not
move anymore, stow the jack and the
cover, and press on the jack to fix with the
rubber band.
1Remove deck under tray.
2
Loosen the center fastener that
secures the spare tire. 1
Chock the tires.
2
Slightly loosen the wheel nuts (one
turn).
3
Turn the tire jack portion by
hand until the notch of the jack is in
contact with the jack point.
The jack point guides are located under
the rocker panel. They indicate the jack
Taking out the spare tire
WARNING
■When storing the spare tire
Be careful not to catch fingers or other
body parts between the spare tire and
the body of the vehicle.
AReplacing a flat tire
Flat tireWheel chock positions
Front left-
hand sideBehind the rear right-hand
side tire
Front right-
hand sideBehind the rear left-hand
side tire
Rear left-hand
sideIn front of the front right-
hand side tire
Rear right-
hand sideIn front of the front left-
hand side tire
A

4238-1. Specifications
LEXUS NX300 Owners Manual_USA_M78389_en
8
Vehicle specifications
Rim type des-
ignationThe industry manufac-
turer’s designation for a
rim by style or code
Rim widthNominal distance between
rim flanges
Vehicle
capacity
weight
(Total load
capacity)The rated cargo and lug-
gage load plus 150 lb. (68
kg) times the vehicle’s des-
ignated seating capacity
Vehicle maxi-
mum load on
the tire
The load on an individual
tire that is determined by
distributing to each axle its
share of the maximum
loaded vehicle weight, and
dividing by two
Vehicle nor-
mal load on
the tire
The load on an individual
tire that is determined by
distributing to each axle its
share of curb weight,
accessory weight, and nor-
mal occupant weight (dis-
tributed in accordance
with Table 1
* below), and
dividing by two
Weather side
The surface area of the rim
not covered by the inflated
tire
Bead
The part of the tire that is
made of steel wires,
wrapped or reinforced by
ply cords and that is
shaped to fit the rim
Bead separa-
tionA breakdown of the bond
between components in
the bead
Tire related termMeaning
Bias ply tire
A pneumatic tire in which
the ply cords that extend to
the beads are laid at alter-
nate angles substantially
less than 90 degrees to the
centerline of the tread
Carcass
The tire structure, except
tread and sidewall rubber
which, when inflated, bears
the load
Chunking
The breaking away of
pieces of the tread or side-
wall
CordThe strands forming the
plies in the tire
Cord separa-
tionThe parting of cords from
adjacent rubber com-
pounds
Cracking
Any parting within the
tread, sidewall, or inner-
liner of the tire extending
to cord material
CT
A pneumatic tire with an
inverted flange tire and rim
system in which the rim is
designed with rim flanges
pointed radially inward and
the tire is designed to fit on
the underside of the rim in
a manner that encloses the
rim flanges inside the air
cavity of the tire
Extra load tire
A tire designed to operate
at higher loads and at
higher inflation pressures
than the corresponding
standard tire
Tire related termMeaning

4258-1. Specifications
LEXUS NX300 Owners Manual_USA_M78389_en
8
Vehicle specifications
*:Table 1  Occupant loading and distri-
bution for vehicle normal load for vari-
Pneumatic
tire
A mechanical device
made of rubber, chemicals,
fabric and steel or other
materials, that, when
mounted on an automotive
wheel, provides the trac-
tion and contains the gas
or fluid that sustains the
load
Radial ply tire
A pneumatic tire in which
the ply cords that extend to
the beads are laid at sub-
stantially 90 degrees to
the centerline of the tread
Reinforced
tire
A tire designed to operate
at higher loads and at
higher inflation pressures
than the corresponding
standard tire
Section width
The linear distance
between the exteriors of
the sidewalls of an inflated
tire, excluding elevations
due to labeling, decora-
tion, or protective bands
Sidewall
That portion of a tire
between the tread and
bead
Sidewall sep-
arationThe parting of the rubber
compound from the cord
material in the sidewall
Tire related termMeaning
Snow tire
A tire that attains a traction
index equal to or greater
than 110, compared to the
ASTM E-1136 Standard
Reference Test Tire, when
using the snow traction test
as described in ASTM F-
1805-00, Standard Test
Method for Single Wheel
Driving Traction in a
Straight Line on Snow-and
Ice-Covered Surfaces, and
which is marked with an
Alpine Symbol ( ) on at
least one sidewall
Test rim
The rim on which a tire is
fitted for testing, and may
be any rim listed as appro-
priate for use with that tire
Tread
That portion of a tire that
comes into contact with
the road
Tread rib
A tread section running
circumferentially around a
tire
Tread separa-
tionPulling away of the tread
from the tire carcass
Treadwear
indicators
(TWI)
The projections within the
principal grooves designed
to give a visual indication of
the degrees of wear of the
tread
Wheel-hold-
ing fixtureThe fixture used to hold the
wheel and tire assembly
securely during testing
Tire related termMeaning

4348-2. Customization
LEXUS NX300 Owners Manual_USA_M78389_en
■Parking Support Brake function (for static objects)* ( P.241)
*:If equipped
■Driving position memory* ( P.128)
*:If equipped
■Outside rear view mirrors ( P.136)
■LTA (Lane Tracing Assist)* ( P.206)
FunctionDefault settingCustomized set-
ting
Parking Support Brake func-
tion (for static objects)OnOff—O——
FunctionDefault settingCustomized set-ting
Driver’s seat movement when
exiting the vehicleStandardOffO—O—Partial
Selection the door linking
driving position memory with
door unlock operation
Driver’s doorAll doors——O—
FunctionDefault settingCustomized set-ting
Automatic mirror folding and
extending operationLinked to the
locking/unlock- ing of the doorsOff
——O—Linked to opera-
tion of the engine switch
Linked mirror function when
reversingOnOff——O—
FunctionDefault settingCustomized set- ting
Lane centering functionOnOff—O——
Steering assist functionOnOff—O——
Alert typesSteering wheel vibrationBuzzer—O——
Alert sensitivityHighStandard—O——
ABCD
ABCD
ABCD
ABCD