AUX LEXUS NX300h 2018 Owners Manual

3256-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care 1 Pull the hood lock release lever. The hood will pop up slightly.
2 Pull up the auxiliary catch lever and
lift the hood.WARNING●
Be careful not to touch the engine,
power control unit, radiator, exhaust
manifold, etc. right after driving as they
may be hot. Oil and other fluids may
also be hot.●
Do not leave anything that may burn
easily, such as paper and rags, in the
engine compartment.●
Do not smoke, cause sparks or expose
an open flame to fuel. Fuel fumes are
flammable.■
When working near the electric cool-
ing fans or radiator grille
Be sure the power switch is off.
With power switch in ON mode, the
electric cooling fans may automatically
start to run if the air conditioning is on
and/or the coolant temperature is high.
( → P.331)■
Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE■
If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine
wear due to dirt in the air. Hood
Opening the hood
WARNING
■
Pre-driving check
Check that the hood is fully closed and
locked.
If the hood is not locked properly, it may
open while the vehicle is in motion and
cause an accident, which may result in
death or serious injury.

3356-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care 1 Lift the deck board and attach the
hook. ( → P.285)
2 Remove the left side deck board.
3 Remove the cover after removing
the chip.
Press
Pull out
Make sure that the 12-volt battery ter-
minals are not corroded and that there
are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
Insert the left side auxiliary box.
1 Push up center position
2 Insert
3 PressNOTICE■
When recharging the 12-volt battery
Never recharge the 12 -volt battery while
the hybrid system is operating. Also, be
sure all accessories are turned off.
Removing the 12-volt battery
maintenance cover
Exterior A
B Installing the 12-volt battery
maintenance cover A
B

340 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Situations in which the tire pressure
warning system may not operate prop-
erly●
In the following cases, the tire pressure
warning system may not operate prop-
erly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is
not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is
not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is
equipped.
• If a window tint that affects the radio wave
signals is installed.
• If there is a lot of snow or ice on the vehi-
cle, particularly around the wheels or
wheel housings.
• If the tire inflation pressure is extremely
higher than the specified level.
• If wheel without the tire pressure warning
valve and transmitter is used.
• If the ID code on the tire pressure warn-
ing valves and transmitters is not regis-
tered in the tire pressure warning
computer.●
Performance may be affected in the fol-
lowing situations.
• 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 carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
●
When the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
●
When tire inflation pressure declines rap-
idly for example when a tire has burst, the warning may not function.
When replacing tires or wheels, tire WARNING■
Caution regarding interference with
electronic devices ●
People with implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should not
come within 17.7 in. (450 mm) of the
tire pressure warning system initiators.
The radio waves may affect the opera-
tion of such devices.
●
Users of any electrical medical device
other than implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should con-
sult the manufacturer of the device for
information about its operation under
the influence of radio waves.
Radio waves could have unexpected
effects on the operation of such medi-
cal devices.
Installing tire pressure warning
valves and transmitters

3757-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises The warning lights and warning buzzers op erate as follows depending on the con-
tent of the message. If a message indicates the need for inspection by a dealer, have
the vehicle inspected by your Lexus dealer immediately.
*
: A buzzer sounds the first time a message is shown on the multi-information display.
■
System warning lights
The master warning light does not come on
or flash in the following cases. Instead, a
separate system warning light will come on
along with a message shown on the multi-
information display.
●
Malfunction of the ABS
The ABS warning light comes on.
( → P.367)
●
Malfunction of the charging system
The charging system warning light comes
on. ( → P.365)
■
If “Hybrid System Overheated Reduced
Output Power” is shown
This message may be displayed when driv-
ing under severe operating conditions. (For example, when driving up a long steep hill.)
Handling method: → P.394■
If “Maintenance required for Traction
battery cooling parts at your dealer” is
shown
The filter may be clogge d, or the air intake
vents or ducts may be blocked. Have the
vehicle inspected by your Lexus dealer.
■
If “Aux Battery Low” is shown
●
When the display goes off after several
seconds *
Maintain the hybrid system operation for
more than 15 minutes and charge the 12-
volt battery.
●
When the display does not go off
Start up the hybrid system using the pro-
cedures for “If the 12-volt battery is dis-Messages and warnings System
warning
light Warning buzzer *
Warning
Comes
on ⎯ Sounds Indicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
⎯ Comes
on
or flashes Sounds Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning
Flashes ⎯ Sounds Indicates a situation, such as when damage
to the vehicle or danger may result
Comes
on ⎯ Does not sound Indicates a condition, such as malfunction of
electrical components, their condition, or
indicates the need for maintenance
Flashes ⎯ Does not sound Indicates a situation, such as when an opera-
tion has been performed incorrectly, or indi-
cates how to perform an operation correctly

376 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U charged” ( → P.390).*
: Displays for about 6 seconds ■
If “Traction Battery Needs to be Pro-
tected Refrain From the Use of N Posi-
tion” is shown
This message may be displayed when the
shift lever is in N.
As the hybrid battery (traction battery) can-
not be charged when the shift lever is in N,
when the vehicle is to be stopped for a long
period of time, shift the shift lever to P. ■
If “Traction battery needs to be pro-
tected. Shift into P to restart.” is shown
Message is displayed when the remaining
charge for the hybrid battery (traction bat-
tery) is low, because vehicle has been
shifted N for a long period of time.
When operating the vehicle, restart the
hybrid system. ■
If “Shift to P Before Exiting Vehicle” is
shown
Message is displayed when the driver’s
door is opened with out turning the power
switch to OFF with the shift lever in any
position other than P.
Shift the shift lever to P. ■
If “Shift Is in N Release Accelerator
Before Shifting” is shown
Message is displayed when the accelerator
pedal has been depressed and the shift
lever is in N. Releas e the accelerator pedal
and shift the shift lever to D, S or R. ■
If “Depress Brake When Vehicle Is
Stopped Hybrid Syst em May Overheat”
is shown
Message is displayed when the accelerator
pedal is depressed to maintain the vehicle
position when stopped on a upward slope,
etc.
If this continues, th e hybrid system may
overheat.
Release the accelerator pedal and depress
the brake pedal.
■
If “Front Camera Unavailable” or “Front
Camera Unavailable Remove Debris
On Windshield” is shown
The following systems may be suspended
until the problem shown in the message is resolved. ( → P.209, 367)●
PCS (Pre-Collision System) ●
LDA (Lane Departure Alert with steering
control) ●
Dynamic radar cruise control with full-
speed range ●
Adaptive High-beam System ●
Automatic High Beam ■
If “Oil Maintenance Required Soon” is
shown
Indicates that the engine oil is scheduled to
be changed. (The indicator will not work
properly unless the oi l maintenance data
has been reset.)
Check the engine oil, and change if neces-
sary. After changing th e engine oil, the oil
change system should be reset. ( → P.329)■
If “Oil Maintenance Required” is shown
Indicates that the engine oil should be
changed. (After the engine oil is changed
and the oil maintenance data has been
reset.)
Check and change the en gine oil, and oil fil-
ter by your Lexus dealer. After changing the
engine oil, the oil change system should be
reset. ( → P.329)■
If “See Owner’s Manual” is shown ●
If the following messages are shown, fol-
lowing the instruct ions, accordingly.
• “Engine Coolant Temp High” ( → P.394)
• “Aux Battery Low” ( → P.375)●
If the following messages are shown,
there may be a malfunction.
Immediately have the vehicle inspected
by your Lexus dealer.
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Braking Power Low”
• “Smart Access System Malfunction”
●
If the following messages are shown,
there may be a malfunction.
Immediately stop the vehicle in a safe
place and contact your Lexus dealer.
Continuing to drive the vehicle may be
dangerous.
• “Oil Pressure Low”

3777-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises • “Charging System Malfunction” ■
Warning buzzer
→ P.372
 Stop the vehicle in a safe place on a
hard, flat surface.
 Set the parking brake.
 Shift the shift lever to P.
 Stop the hybrid system.
 Turn on the emergency flashers.
( → P.358)NOTICE■
“High Power Consumption Partial
Limit On AC/Heater Operation” is
frequently shown
There is a possible malfunction relating
to the charging system or the 12-volt bat-
tery may be deteriorating. Have the vehi-
cle inspected by your Lexus dealer. ■
“Aux Battery Low” is frequently
shown
The 12-volt battery may have deterio-
rated. As the battery may discharge in
this state when left unattended, have the
battery inspected by your Lexus dealer. If you have a flat tire Your vehicle is equipped with a
spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: → P.336WARNING■
If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat
tire can damage the tire and the wheel
beyond repair, which could result in an
accident.
Before jacking up the vehicle

4339-1. For owners
LEXUS NX300h Owners Manu-
al_USA_OM78212U 9
For owners ■
Soins à porter aux ceintures de
sécurité
Nettoyez avec un chiffon ou une
éponge humectée d’eau savonneuse
tiède. Par ailleurs, vérifiez régulière-
ment que les ceintures ne sont pas
effilochées, entaillées, ou ne paraissent
pas exagérément usées.Entretien et soin
WARNING
Respectez les précautions suivantes afin
de réduire le risque de blessure en cas
de freinage brusque, d’embardée ou
d’accident.
À défaut, des blessures graves, voire
mortelles, pourraient s’ensuivre. ■
Port de la ceinture de sécurité●
Ne pas passer la sangle diagonale
sous le bras.●
Faites toujours passer votre ceinture
de sécurité au plus bas sur vos
hanches et bien dans l’axe.■
État et usure des ceintures de sécu-
rité
Inspectez les ceinture s de sécurité péri-
odiquement. Contrôle z qu’elles ne sont
pas entaillées, effilochées, et que leurs
ancrages ne sont pas desserrés. Ne pas
utiliser une ceinture de sécurité
défectueuse avant qu’elle ne soit rem-
placée. Une ceinture de sécurité
défectueuse n’apporte aucune garantie
de protection de l’occupant contre des
blessures graves, voire mortelles. ■
Lorsque vous utilisez la ceinture de
sécurité du siège central arrière
Ne pas utiliser la ceinture de sécurité du
siège central arrière avec une de ses
deux boucles déverrouillée. Si une seule
des boucles est verrouillée, tout freinage
brusque ou collision peut entraîner des
blessures graves, voire mortelles.

434 9-1. For owners
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Emplacement des coussi ns gonflables SRS

Coussins gonflables SRS frontaux
Coussin gonflable SRS conducteur/passager avantParticipent à la protection de la tête et du thorax du cond ucteur et du passager avant con-
tre les chocs avec les éléments de l’habitacle
Coussin gonflable SRS de genouxParticipe à la protection du conducteur
Coussin gonflable SRS d’assise de siègeParticipe à retenir le passager avant. 
Coussins gonflables SR S latéraux et rideau
Coussins gonflables SRS latérauxParticipent à la protection du haut du corps des occupants aux places avant
Coussins gonflables SRS rideauSRS airbag instructions for Canadian owners (in French) The following is a French explanation of SRS airbag instructions extracted
from the SRS airbag section in this manual.
See the SRS airbag section for more deta iled seat belt instructions in English.
Système de coussins gonflables SRS
A
B
C
D
E

4359-1. For owners
LEXUS NX300h Owners Manu-
al_USA_OM78212U 9
For owners • Participent principalement à la protection de la tête des occupants assis dans les sièges
des places extérieures
• Participent à empêcher les oc cupants d’être éjectés du véhicule en cas de retournement
de celui-ci■
Composition du système de coussins gonflables SRS
Coussin gonflable passager avant
Témoins indicateurs “AIR BAG ON” et “AIR BAG OFF”
Coussins gonflables latéraux
Coussins gonflables rideau
Capteurs d’impact latéral (arrière)
Témoin d’alerte SRS
Système de classification d’occupant du siège passager avant (ECU et cap-
teurs)
Coussin gonflable conducteur
Capteurs d’impact latéral (porte avant)
Prétensionneur de ceinture de sécurité du conducteur
Prétensionneur et limiteurs d’effort de ceinture de sécurité du passager avant
Coussin gonflable d’assise de siège passager
Capteur de position du siège conducteur
Coussin gonflable de genoux conducteur
Contacteur de boucle de cein ture de sécurité conducteur
Contacteur de boucle de ceintu re de sécurité passager avant
Capteurs d’impact avant A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q

436 9-1. For owners
LEXUS NX300h Owners Manu-
al_USA_OM78212U Boîtier électronique de coussins gonflablesVotre véhicule est équipé de COUSSINS GONFLABLES INTELLIGENTS
(ADVANCED AIRBAGS) conçus selon les normes de sécurité américaines applicables
aux véhicules à moteur (FMVSS208). Le boît ier électronique de coussins gonflables
(ECU) utilise les informations reçues des capteu rs, etc. détaillés dans le schéma ci-dessus
de composition du système pour commander le déploiement des coussins gonflables. Ces
informations comprennent des in formations sur la gravité de la collision et les occupants.
Le déploiement rapide des coussins gonflables est obtenu au moyen d’une réaction
chimique dans les dispositifs pyrotechniques, qui produit un gaz inoffensif permettant
d’amortir le mouvement des occupants. R
WARNING■
Précautions avec les coussins gonfla-
bles SRS
Respectez les précautions suivantes
concernant les coussins gonflables SRS.
À défaut, des blessures graves, voire
mortelles, pourraient s’ensuivre. ●
Le conducteur et tous les passagers à
bord du véhicule doivent porter leur
ceinture de sécurité correctement.
Les coussins gonflables SRS sont des
dispositifs de protection complémen-
taires aux ceintures de sécurité.