Page 594 of 680
5948-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
If the 12-volt battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the situa-
tion, the alarm may activate and the
doors may lock. ( P. 8 9 )
Open the hood ( P. 5 0 0 ) a n d f u s e
box cover.
Open the exclusive jump starting
terminal cover.
The following procedures may be used to start the hybrid system if the vehi-
cle’s 12-volt battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
1
2
3
Page 596 of 680

5968-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the 12-volt bat-
tery of your vehicle.
Open and close any of the doors of your vehicle with the power switch off.
Maintain the engine speed of the second vehicle and start the hybrid system
of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator comes on. If the indicator light does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the fuse box
cover to its original position.
Once the hybrid system starts, have th e vehicle inspected at your Lexus dealer
as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and th e draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the
hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
■When the 12-volt battery is removed or discharged
●In some cases, it may not be possible to unlock the doors using the smart access system
with push-button start when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is
reconnected, the system will return to the mode it was in before the 12-volt battery was
discharged. Before disconnecting the 12-volt battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis-
charged, be especially careful when reconnecting the 12-volt battery.
●The power back door must be initialized. ( P. 1 3 4 )
6
7
8
9
10
11
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–
1234
Page 635 of 680
6359-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Illumination (P. 443)
FunctionDefault
settingCustomized setting
Time elapsed before the inte-
rior lights turn off 15 secondsOff
O–O–
7. 5 s e c o n d s
30 seconds
Time elapsed before the exte-
rior lights turn off15 seconds
Off
O–O–7. 5 s e c o n d s
30 seconds
Operation after the power
switch is turned offOnOff––O–
Operation when the doors
are unlockedOnOff––O–
Operation when you
approach the vehicle with the
electronic key on your person
OnOff––O–
Footwell lightingOnOff––O–
Fading out of the outer foot
lights when they turn offLongShort––O–
1234
Page 637 of 680
6379-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Automatic air conditioning system (P. 4 3 0 )
■Eco drive mode ( P. 3 0 3 )
■Powe r w i n d ow s ( P. 166)
■Moon roof*1 ( P. 1 6 9 )
*1:If equipped
*2: This function cannot be customized unless power window operations, using the wire-
less remote control or mechanical key, is enabled.
FunctionDefault settingCustomized setting
Switching between outside air
and recirculated air mode
linked to “AUTO” switch
operation
OnOffO–O–
A/C Auto switch operationOnOffO–O–
1234
FunctionDefault settingCustomized setting
Heating/cooling operation
minimized in Eco drive modeOnOff––O–
1234
FunctionDefault settingCustomized setting
Mechanical key linked opera-
tionOffOn––O–
Wireless remote control
linked open operationOffOn––O–
1234
FunctionDefault
settingCustomized setting
Mechanical key linked opera-
tion
*2OffOn––O–
Wireless remote control
linked open or Tilt up opera-
tions
*2OffOn––O–
1234
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––
1234
Page 656 of 680

656What to do if... (Troubleshooting)
NX300h_OM_USA_OM78082U
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( P. 1 2 0 )
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 122)
●Is the electronic key battery weak or depleted? ( P. 5 3 2 )
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 202)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 1 4 2 )
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 1 2 6 )
If you have a problem, check the following before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 657 of 680

657What to do if... (Troubleshooting)
NX300h_OM_USA_OM78082U
●Did you press the power switch while firmly depressing the brake pedal?
(P. 2 0 1 )
●Is the shift position in P? ( P. 2 0 3 )
●Is the electronic key anywhere detectable inside the vehicle? ( P. 1 4 0 )
●Is the steering wheel unlocked? ( P. 2 0 3 )
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. ( P. 5 9 2 )
●Is the 12-volt battery discharged? ( P. 5 9 4 )
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode ( P. 5 9 0 )
●It is locked automatically to prevent theft of the vehicle. ( P. 2 0 4 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 1 6 6 )
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a period
of time. ( P. 2 0 3 )
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the hybrid system is stopped
The windows do not open or close by operating the power window
switches
The power switch is turned off automatically