Page 601 of 680
6018-2. Steps to take in an emergency
8
When trouble arises
NX300h_OM_USA_OM78082U
■If “Hybrid System Overheated” is shown on the multi-information displayStop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The coolant level is satisfactory if it is between the “FULL” and “LOW” lines
on the reservoir.Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
1
2
3
1
2
4
1
2
3
5
Page 602 of 680

6028-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
Start the hybrid system and check if “Hybrid System Overheated” is shown
on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
WA R N I N G
■To prevent an accident or injury when in specting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fan may suddenly operate even if the gasoline engine stops. Do not touch
or approach rotating parts such as the fa n, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) ge tting caught, resulting in serious injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
6
Page 631 of 680

6319-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
Customizable features
Some function settings are changed simultaneously with other functions being
customized. Contact your Lexus dealer.
When customizing vehicle features, ensure that the vehicle is parked in a safe
place with the shift lever in P and the parking brake set.
■Changing using the Remote TouchPress the “MENU” button on the Remote Touch.
Select “Setup” on the “MENU” screen and select “Vehicle”.
Various setting can be changed. Refer to the list of settings that can be
changed for details.
■Changing using the Lexus Display Audio controller Press the “MENU” button on the Lexus Display Audio controller.
Select “Setup” on the “MENU” screen and select “Vehicle”.
Various setting can be changed. Refer to the list of settings that can be
changed for details.
■Changing using the multi-information display
Press or of the meter control switches, select , and then
press .
Press or of the meter control switches, select the item, and then
press .
Press or of the meter control switches, select the desired setting,
and then press .
To go back to the previous screen or exit the customize mode, press .
Your vehicle includes a variety of electronic features that can be personalized
to suit your preferences. The settings of these features can be changed using
the multi-information display, the Remo te Touch or Lexus Display Audio con-
troller, or at your Lexus dealer.
Customizing vehicle features
1
2
1
2
1
2
3
Page 632 of 680
6329-2. Customization
NX300h_OM_USA_OM78082U
Settings that can be changed using the Remote Touch or Lexus Display Audio
controller
Settings that can be changed us ing the multi-information display
Settings that can be changed by your Lexus dealer
Settings that can be changed using the vehicle switch
Definition of symbols: O = Available, – =Not available
■Door lock ( P. 1 2 4 , 5 9 1 )
Customizable Features
1
2
3
4
FunctionDefault
settingCustomized setting
Unlocking using a mechanical
key
Driver’s door
unlocked in first
step, all doors
unlocked in
second step
All doors
unlocked in first
step––O–
Automatic door locking func-
tion
Shift position
linked door
locking opera-
tionOffO–O–
Speed linked
door locking
operationO–O–
Automatic door unlocking
function
Shift position
linked door
unlocking oper-
ationOffO–O–
Driver’s door
linked door
unlocking oper-
ation
O–O–
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Page 636 of 680

6369-2. Customization
NX300h_OM_USA_OM78082U
■Multi-information display ( P. 9 7 , 1 0 2 )
*1: The default setting varies according to countries.
*2: Some status screens cannot be registered (indicated on the multi-information display)
*3: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank
*4: Intersection guidance, Incoming calls, Adjust brightness
FunctionDefault settingCustomized setting
Changeover to tachometer
when sport mode is selected AutoHybrid system
indicator (always) –O– –
Tachometer (always)
EV indicatorOnOff–O––
Language*1EnglishFrench–O––Spanish
Units*1miles (MPG US)
miles
(MPG Imperial)
–O––km (L/100km)
km (km/L)
switch settingsDrive
information 1Desired status screen
*2–O––
Drive information screen dis-
played on the first screen of
(Drive information 1)Current fuel
consumption
*3–O––Average fuel
consumption (after reset)
Drive information screen dis-
played on the second screen
of
(Drive information 2)Distance (range)
*3–O––Average speed
(after reset)
Po p - u p d i s p l a y*4OnOff–O––
Accent colorColor 1Color 2OO––
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Page 638 of 680

6389-2. Customization
NX300h_OM_USA_OM78082U
■Intuitive parking assist* ( P. 2 7 9 )
*:If equipped
■Driving position memory* ( P. 1 5 4 )
*:If equipped
■Outside rear view mirrors ( P. 1 6 3 )
■LDA (Lane Departure Alert with steering control)* ( P. 2 7 0 )
*:If equipped
FunctionDefault
settingCustomized setting
Detection distance of the
front center sensorLongShortO–O–
Detection distance of the rear
center sensorLongShortO–O–
Display setting (When intui-
tive parking assist is operat-
ing)
OnOffO–O–
Buzzer volume31 to 5O–O–
1234
FunctionDefault settingCustomized setting
Driver’s seat movement when
exiting the vehicleStandardOffO–O–Pa r t i a l
Selection the door linking
driving position memory with
door unlock operation
Driver’s doorAll doors––O–
1234
FunctionDefault settingCustomized setting
Linked mirror function when
reversingOnOff––O–
1234
FunctionDefault settingCustomized setting
Steerage assistOnOff–O––
Sensitivity adjustment for the
lane deviation alert buzzerStandardHigh–O––
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Page 639 of 680

6399-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Power back door*1 ( P. 1 2 9 )
*1:If equipped
*2: Configured by operating the switch of the lower back door. ( P. 1 3 2
*3: While carrying the electronic key on your person, press the back door opener switch.
■Vehicle customization
●When the speed linked door locking functi on and shift position linked door locking
function are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all th e doors will be locked.
• If the vehicle is started with all the door s locked, the speed linked door locking func-
tion would not operate.
• If the vehicle is started with any door un locked, the speed linked door locking func-
tion will operate.
●When the smart access system with push-but ton start is off, smart door unlocking can-
not be customized.
●When the doors remain closed after unloc king the doors and the automatic door lock
function is activated, the signals will be generated in accordance with the Operation
signal (buzzer) and the Operation si gnal (emergency flashers) settings.
■In the following situations, customize mo de in which the settings can be changed
through the multi-in formation display will automatically be turned off.
●A warning message appears after the cu stomize mode screen is displayed.
●The power switch is turned off.
●The vehicle begins to move while the customize mode screen is displayed.
FunctionDefault
settingCustomized setting
Set at the desired Position
(height)
*2
Back Door Automatic
Open and Stop Position
Initial settings Po s i t i o nStop at the
desired position
(height)–––O
5 step configuration
Back Door Automatic
Open and Stop Position
51 to 5O–O–
Back door opener switch
operationsWhen the back
door is locked
*3When the back
door is unlocked––O–
Power back door operationsOnOff–O––
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Page 658 of 680
658What to do if... (Troubleshooting)
NX300h_OM_USA_OM78082U
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 5 6 7 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 1 3 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 5 6 5 , 5 7 2 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 8 8 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 5 7 2 )
●When a warning light turns on or a warning message is displayed, refer to
P. 5 6 5 , 5 7 2 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed