belt LEXUS NX300h 2018 User Guide

271-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1
For safety and security
 Extend the shoulder belt so that it
comes fully over the shoulder, but
does not come into contact with the
neck or slide off the shoulder.
 Position the lap belt as low as possi-
ble over the hips.
 Adjust the position of the seatback.
Sit up straight and well back in the
seat.
 Do not twist the seat belt.WARNING■
Pregnant women
Obtain medical advice and wear the seat
belt in the proper way. ( → P.27)
Women who are pregnant should posi-
tion the lap belt as low as possible over
the hips in the same manner as other
occupants, extending the shoulder belt
completely over the shoulder and avoid-
ing belt contact with the rounding of the
abdominal area.
If the seat belt is not worn properly, not
only the pregnant woman, but also the
fetus could suffer death or serious injury
as a result of sudden braking or a colli-
sion.
■
People suffering illness
Obtain medical advice and wear the seat
belt in the proper way. ( → P.27)
■
When children are in the vehicle
Do not allow children to play with the
seat belt. If the seat belt becomes twisted
around a child’s neck, it may lead to
choking or other serious injuries that
could result in death. If this occurs and
the buckle cannot be unfastened, scis-
sors should be used to cut the belt.
■
Seat belt damage and wear
●
Do not damage the seat belts by allow-
ing the belt, plate, or buckle to be
jammed in the door. ●
Inspect the seat belt system periodi-
cally. Check for cuts, fraying, and loose
parts. Do not use a damaged seat belt
until it is replaced. Damaged seat belts
cannot protect an occupant from
death or serious injury. ●
Ensure that the belt and plate are
locked and the belt is not twisted.
If the seat belt does not function cor-
rectly, immediately contact your Lexus
dealer. ●
Replace the seat assembly, including
the belts, if your vehicle has been
involved in a seriou s accident, even if
there’s no obvious damage. ●
Do not attempt to install, remove,
modify, disassemble or dispose of the
seat belts. Have any necessary repairs
carried out by your Lexus dealer. Inap-
propriate handling may lead to incor-
rect operation.
Correct use of the seat belts

28 1-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Child seat belt usage
The seat belts of your vehicle were princi-
pally designed for persons of adult size. ●
Use a child restraint system appropriate
for the child, until the child becomes large
enough to properly wear the vehicle’s
seat belt. ( → P.47)●
When the child becomes large enough to
properly wear the vehicle’s seat belt, fol-
low the instructions regarding seat belt
usage. ( → P.26)■
Seat belt extender
If your seat belts cannot be fastened
securely because they are not long enough,
a personalized seat belt extender is avail-
able from your Lexus de aler free of charge.
1 To fasten the seat belt, push the
plate into the buckle until a click
sound is heard.
2 To release the seat belt, press the
release button . ■
Emergency locking retractor (ELR)
The retractor will lock the belt during a sud-
den stop or on impact. It may also lock if you
lean forward too quickly. A slow, easy
motion will allow the belt to extend so that
you can move around fully.
■
Automatic locking retractor (ALR)
When a passenger’s shoulder belt is com-WARNING■
Using a seat belt extender
Observe the following precautions to
reduce the risk of injury in the event of
sudden braking, sudd en swerving or an
accident.
Failure to do so may cause death or seri-
ous injury. ●
Do not wear the seat belt extender if
you can fasten the seat belt without the
extender.
●
Do not use the seat belt extender
when installing a child restraint system
because the belt will not securely hold
the child restraint system, increasing
the risk of death or serious injury in the
event of an accident. ●
The personalized extender may not be
safe on another vehi cle, when used by
another person, or at a different seat-
ing position other than the one origi-
nally intended.
NOTICE■
When releasing a seat belt extender
Press on the buckle release button on the
extender, not on the seat belt, then,
release the extender from the seat belt
buckle.
This helps prevent damage to the vehicle
interior and the extender itself.
Fastening and releasing the seat
belt (except for the rear center
seat)
A

291-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1
For safety and security pletely extended and then retracted even
slightly, the belt is locked in that position and
cannot be extended. This feature is used to
hold the child restraint system (CRS) firmly.
To free the belt again, fully retract the belt
and then pull the belt out once more.
1 Take out the plate.
Plate A
Plate B
2 When fixing the belt, in the order of
plate A and then plate B, insert the plate into the buckle until a clicking
sound is heard.
Plate A
Plate B
Buckle A
Buckle BFastening the seat belt (for the
rear center seat)
A
B WARNING■
When using the rear center seat belt
Do not use the rear ce nter seat belt with
either buckle releas ed. Fastening only
one of the buckles may result in death or
serious injury in case of sudden braking
or a collision. A
B
C
D

30 1-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1 To release the hooked buckle B,
push the buckle release button .
2 Insert the mechanical key ( → P.102)
or plate B into the notch of buckle
A and remove the belt.Retract the belt slowly when releasing and
stowing the seat belt.
Plate B
Buckle A
3 Stow in the cover in the order of
plate B and then plate A.In order to securely fix it, firmly insert it to the back.
Plate A
Plate B
4 Stow seat belt buckle in the pock-
ets.
■
Emergency locking retractor (ELR)
The retractor will lock the belt during a sud-
den stop or on impact. It may also lock if you
lean forward too quickly. A slow, easy
motion will allow the belt to extend so that
you can move around fully.
■
Automatic locking retractor (ALR)
When a passenger’s shoulder belt is com-
pletely extended and then retracted even
slightly, the belt is lock ed in that position and Releasing and stowing the seat
belt (for the rear center seat) B
B
C A
B

311-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1
For safety and security cannot be extended. This feature is used to
hold the child restraint system (CRS) firmly.
To free the belt again, fully retract the belt
and then pull the belt out once more.
1 Push the seat belt shoulder anchor
down while pressing the release
button .
2 Push the seat belt shoulder anchor
up.Move the height adjuster up and down as
needed until yo u hear a click.
The pretensioners help the seat belts to
quickly restrain the occupants by
retracting the seat belts when the vehi- cle is subjected to certain types of
severe frontal or side collision or a
vehicle rollover. The pretensioners do not activate in the
event of a minor frontal impact, a minor
side impact or a rear impact.
■
Replacing the belt after the preten-
sioner has been activated
If the vehicle is involved in multiple colli-
sions, the pretensioner will activate for the
first collision, but will not activate for the
second or subsequent collisions.Adjusting the seat belt shoulder
anchor height (front seats)
WARNING■
Adjustable shoulder anchor
Always make sure th e shoulder belt is
positioned across the center of your
shoulder. The belt should be kept away
from your neck, but not falling off your
shoulder. Failure to do so could reduce
the amount of protection in an accident
and cause death or serious injuries in the
event of a sudden stop, sudden swerve or
accident. ( → P.31)
Seat belt pretensioners (front
seats) A
WARNING■
Seat belt pretensioners
Observe the following precautions to
reduce the risk of in jury in the event of
sudden braking, sudden swerving or an
accident.
Failure to do so may cause death or seri-
ous injury. ●
Do not place anything, such as a cush-
ion, on the front passenger’s seat.
Doing so will disperse the passenger’s
weight, which prevents the sensor
from detecting the passenger’s weight
properly. As a result , the seat belt pre-
tensioner for the front passenger’s seat
may not activate in the event of a colli-
sion.
●
If the pretensioner has activated, the
SRS warning light will come on. In that
case, the seat belt cannot be used
again and must be replaced at your
Lexus dealer.

32 1-1. For safe use
LEXUS NX300h Owners Manu-
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Location of the SRS airbags

SRS front airbags
SRS driver airbag/front passenger airbagCan help protect the head and chest of the driver and front passenger from impact with
interior components
SRS knee airbagCan help provide driver protection
SRS seat cushion airbagCan help restrain the front passenger. 
SRS side and curtain shield airbags
SRS side airbagsCan help protect the torso of the front seat occupants
SRS curtain shield airbagsSRS airbags The SRS airbags inflate when the vehicl e is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They work
together with the seat belts to help redu ce the risk of death or serious injury.
SRS airbag system
A
B
C
D
E

331-1. For safe use
LEXUS NX300h Owners Manu-
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For safety and security • Can help protect primarily the head of occupants in the outer seats
• Can help prevent the occupants from being thrown from the vehicle in the event of vehi-
cle rollover■
SRS airbag system components
Front passenger airbag
“AIR BAG ON” and “AIR BAG OFF” indicator lights
Side airbags
Curtain shield airbags
Side impact sensors (rear)
SRS warning light
Front passenger occupant classifi cation system (ECU and sensors)
Driver airbag
Side impact sensors (front door)
Driver’s seat belt pretensioner
Front passenger's seat belt pretensioner and force limiter
Passenger seat cushion airbag
Driver’s seat position sensor
Driver knee airbag
Driver’s seat belt buckle switch
Front passenger’s seat belt buckle switch
Front impact sensors
Airbag sensor assembly A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R

34 1-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 com-
ponents diagram above. This in formation includes crash severity and occupant information.
As the airbags deploy, a chemical reaction in the inflators quic kly fills the airbags with non-
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.●
For Lexus Enform Safety Connect sub-
scribers, if the SRS airbags deploy or in
the event of a severe rear-end collision,
the system is designed to send an emer-
gency call to the response center, notify-
ing them of the vehicl e’s location (without
needing to push the “SOS” button) and
an agent will attempt to speak with the
occupants to ascertain the level of emer-
gency and assistance required. If the
occupants are unable to communicate,
the agent automatically treats the call as
an emergency and help s to dispatch the
necessary emergency services.
( → P.306)
■
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. ( → P.41)●
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
will deploy in the event of an impact that
exceeds the set threshold 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 vehicle orientation at an
approximate speed of 12 -18 mph [20 -
30 km/h]). ●
The SRS curtain shield airbags will deploy
in the event of vehicle rollover.
●
The SRS side and curtain shield airbags
may also deploy in the event of a severe
frontal collision.
■
Conditions under which the SRS air-
bags may deploy (inflate), other than a
collision
The SRS front airbags and 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.

371-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1
For safety and security WARNING■
SRS airbag precautions
Observe the following precautions
regarding the SRS airbags.
Failure to do so may cause death or seri-
ous injury. ●
The driver and all passengers in the
vehicle must wear their seat belts
properly.
The SRS airbags are supplemental
devices to be used with the seat belts. ●
The SRS driver airbag deploys with
considerable force, and can cause
death or serious injury especially if the
driver is very close to the airbag. The
National Highway Traffic Safety
Administration (NHTSA) advises:
Since the risk zone for the driver’s air-
bag is the first 2 - 3 in. (50 - 75 mm) of
inflation, placing yourself 10 in. (250
mm) from your driver airbag provides
you with a clear margin of safety. This
distance is measured from the center
of the steering wheel to your breast-
bone. If you sit less than 10 in. (250
mm) away now, you can change your
driving position in several ways:
• Move your seat to the rear as far as
you can while still reaching the pedals
comfortably.
• Slightly recline the back of the seat.
Although vehicle designs vary, many
drivers can achieve the 10 in. (250
mm) distance, even with the driver seat
all the way forward, simply by reclining
the back of the seat somewhat. If
reclining the back of your seat makes it
hard to see the road, raise yourself by
using a firm, non-slippery cushion, or
raise the seat if your vehicle has that
feature.
• If your steering wheel is adjustable, tilt
it downward. This points the airbag
toward your chest instead of your head
and neck.
The seat should be adjusted as recom-
mended by NHTSA above, while still
maintaining control of the foot pedals,
steering wheel, and your view of the
instrument panel controls.

38 1-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U WARNING●
If the seat belt extender has been con-
nected to the front seat belt buckles
but the seat belt extender has not also
been fastened to the latch plate of the
seat belt, the SRS front airbags will
judge that the driver and front passen-
ger are wearing the seat belt even
though the seat belt has not been con-
nected. In this case, the SRS front air-
bags may not activate correctly in a
collision, resulting in death or serious
injury in the event of a collision. Be
sure to wear the seat belt with the seat
belt extender.
●
The SRS front passenger airbag also
deploys with considerable force, and
can cause death or serious injury
especially if the front passenger is very
close to the airbag. The front passen-
ger seat should be as far from the air-
bag as possible with the seatback
adjusted, so the front passenger sits
upright.
●
Improperly seated and/or restrained
infants and children can be killed or
seriously injured by a deploying airbag.
An infant or child who is too small to
use a seat belt should be properly
secured using a child restraint system.
Lexus strongly recommends that all
infants and children be placed in the
rear seats of the vehicle and properly
restrained. The rear seats are safer for
infants and children than the front pas-
senger seat. ( → P.47) ●
Do not sit on the edge of the seat or
lean against the dashboard.
●
Do not allow a child to stand in front of
the SRS front passenger airbag unit or
sit on the knees of a front passenger. ●
Do not allow the front seat occupants
to hold items on their knees.
●
Do not lean against the door, the roof
side rail or the front, side and rear pil-
lars.
●
Do not allow anyone to kneel on the
passenger seat toward the door or put
their head or hands outside the vehi-
cle.