2018 LEXUS NX300h Owners Manual

251-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1
For safety and security
Adjust the angle of the seatback so
that you are sitting straight up and
so that you do not have to lean for-
ward to steer. ( → P.128)
Adjust the seat so that you can
depress the pedals fully and so that
your arms bend slightly at the
elbow when gripping the steering
wheel. ( → P.128, 139)
Lock the head restraint in place
with the center of the head restraint
closest to the top of your ears.
( → P.137)
Wear the seat belt correctly.
( → P.27) Make sure that all occupants are wear-
ing their seat belts before driving the
vehicle. ( → P.27)
Use a child restraint system appropri-
ate for the child until the child becomes
large enough to properly wear the
vehicle’s seat belt. ( → P.47)
Make sure that you can see the rear of For safe driving For safe driving, adjust the seat and
mirror to an appropriate position
before driving.
Correct driving posture
A
B
C
D WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury. ●
Do not adjust the position of the
driver’s seat while driving.
Doing so could cause the driver to lose
control of the vehicle. ●
Do not place a cushion between the
driver or passenger and the seatback.
A cushion may prevent correct pos-
ture from being achieved, and reduce
the effectiveness of the seat belt and
head restraint. ●
Do not place anything under the front
seats.
Objects placed under the front seats
may become jammed in the seat
tracks and stop the seat from locking in
place. This may lead to an accident
and the adjustment mechanism may
also be damaged. ●
Always observe the legal speed limit
when driving on public roads. ●
When driving over long distances, take
regular breaks before you start to feel
tired. Also, if you feel tired or sleepy
while driving, do not force yourself to
continue driving and take a break
immediately.
Correct use of the seat belts
Adjusting the mirrors

26 1-1. For safe use
LEXUS NX300h Owners Manu-
al_USA_OM78212U the vehicle clearly, by adjusting the
inside and outside rear view mirrors
properly. ( → P.140, 142)
Seat belts Make sure that all occupants are
wearing their seat belts before driv-
ing the vehicle. WARNING
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. ■
Wearing a seat belt ●
Ensure that all passengers wear a seat
belt. ●
Always wear a seat belt properly. ●
Each seat belt should be used by one
person only. Do not use a seat belt for
more than one person at once, includ-
ing children. ●
Lexus recommends that children be
seated in the rear seat and always use
a seat belt and/or an appropriate child
restraint system. ●
To achieve a proper seating position,
do not recline the seat more than nec-
essary. The seat belt is most effective
when the occupants are sitting up
straight and well ba ck in the seats.
●
Do not wear the shoulder belt under
your arm.
●
Always wear your seat belt low and
snug across your hips.

271-1. For safe use
LEXUS NX300h Owners Manu-
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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-
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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-
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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-
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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