TABLE OF CONTENTS
6
NX300h_U_OM78007U 6-4. Other interior features
Other interior features ............ 455
• Sun visors ................................ 455
• Vanity mirrors ........................ 455
• Clock ........................................ 456
• Power outlet (12 VDC)...... 456
• Power outlet (120 VAC) ....457
• Wireless charger.................. 458
• Armrest.................................... 465
• Assist grips ............................. 465
• Coat hooks ............................. 466
Garage door opener ................467
Compass ........................................473
Safety Connect............................ 477
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 484
Cleaning and protecting
the vehicle inte rior..................488
7-2. Maintenance
Maintenance
requirements ..............................491
General maintenance.............. 494
Emission inspection and
maintenance (I/M)
programs .....................................497 7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions................................ 498
Hood ...............................................500
Positioning a floor jack.............. 501
Engine compartment ............... 502
12-volt battery ...............................512
Tires....................................................516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditio ning filter ............... 530
Electronic key battery.............. 532
Checking and replacing
fuses.............................................. 534
Light bulbs .................................... 538
8-1. Essential information
Emergency flashers .................. 556
If your vehicle has to
be stopped in an
emergency .................................5577
Maintenance and care 8
When trouble arises
7 1
9876432
105
NX300h_U_OM78007U 8-2. Steps to take in an emergency
If your vehicle needs to
be towed ..................................... 558
If you think something is
wrong........................................... 564
If a warning light turns on
or a warning buzzer
sounds ......................................... 565
If a warning message is
displayed .....................................572
If you have a flat tire ...................575
If the hybrid system will not
start ............................................... 589
If the shift lever cannot be
shifted from P ............................ 591
If the electronic key does not
operate properly ..................... 592
If the 12-volt battery is
discharged ................................. 595
If your vehicle overheats .........600
If the vehicle becomes
stuck ............................................. 604 9-1. Specifications
Maintenance data
(fuel, oil level, etc.) ..................608
Fuel information ...........................618
Tire information............................. 621
9-2. Customization
Customizable features ............ 633
9-3. Initialization
Items to initialize......................... 643
Reporting safety defects for
U.S. owners............................................ 646
Seat belt instructions for
Canadian owners (in French) .........647
SRS airbag instructions for
Canadian owners (in French) ........ 649
What to do if...
(Troubleshooting) ............................... 658
Alphabetical index ................................ 662 9
Vehicle specifications
10
For owners
Index
For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM
OWNER’S MANUAL” for information rega rding the equipment listed below.
• Navigation system
• Lexus parking assist monitor • Audio/visual system
• Lexus Enform with Safety Con-
nect
10
NX300h_U_OM78007U Your Lexus is equipped with several sophis ticated computers that will record certain
data, such as:
• Engine speed
• Electric motor speed (traction motor speed)
• Accelerator status
•Brake status
• Vehicle speed
•Shift position
• Hybrid battery (traction battery) status
The recorded data varies according to the ve hicle grade level and op tions with which it is
equipped. Furthermore, these computers do not record conversations, sounds or pic-
tures. ●
Data usage
Lexus may use the data recorded in these computers to diagnose malfunctions, con-
duct research and development, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle
is leased
• In response to an official request by the police, a court of law or a government
agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or vehicle
owner●
Usage of data collected through Safety Co nnect / Lexus Enform (U.S. mainland only)
If your Lexus has Safety Connect or Lexus Enform and if you have subscribed to those
services, please refer to the Safety Connect / Lexus Enform Telematics Subscription
Service Agreement for information on data collected and its usage.Vehicle data recordings
78 1-2. Hybrid system
NX300h_U_OM78007U ◆ When stopped/during start off
The gasoline engine stops* when the vehi cle is stopped. During start off, the
electric motor (traction mo tor) drives the vehicle. At slow speeds or when
traveling down a gentle slope, the engi ne is stopped* and the electric motor
(traction motor) is used.
When the shift lever is in N, the hybrid battery (traction battery) is not being
charged. When the vehicle is stopped, always put the shift lever to P.
Also, even in heavy traffic conditions, drive the vehicle in D or S.
* : When the hybrid battery (traction battery) requires charging or the engine is warm-
ing up, etc., the gasoline engine will not automatically stop. ( P. 7 9 )
◆ During normal driving
The gasoline engine is predominantly used. The electric motor (traction
motor) charges the hybrid battery (traction battery) as necessary.
◆ When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the hybrid bat-
tery (traction battery) is added to that of the gasoline engine via the electric
motor (traction motor).
◆ When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power generator,
and the hybrid battery (tr action battery) is charged.
When driving with the gasoline engine stopped, a sound, which changes in
accordance with the driving speed, will be played in order to warn people
nearby of the vehicle’s approach. The sound will stop when the vehicle speed
exceeds approximately 15 mph (25 km/h).Vehicle proximity notification system
791-2. Hybrid system
1
For safety and security
NX300h_U_OM78007U ■
Regenerative braking
In the following situations, kinetic energy is converted to electric energy and decelera-
tion force can be obtained in conjunction with the recharging of the hybrid battery (trac-
tion battery). ●
The accelerator pedal is released while driving with the shift lever in D or S.●
The brake pedal is depressed while driv ing with the shift lever in D or S.■
EV indicator
■
Conditions in which the ga soline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop automati-
cally in the following conditions: ●
During gasoline engine warm-up ●
During hybrid battery (t raction battery) charging●
When the temperature of the hybrid battery (traction battery) is high or low ●
When the heater is switched on ■
Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the battery does not
need to be charged from an outside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction battery) will slowly discharge. For this reason, be
sure to drive the vehicle at least once ever y few months for at least 30 minutes or 10
miles (16 km). If the hybrid battery (tractio n battery) becomes fully discharged and you
are unable to start the hybrid system, contact your Lexus dealer. ■
Charging the 12-volt battery
P. 5 9 7 ■
After the 12-volt battery has discharged or when the terminal has been removed and
installed during exchange, etc.
The gasoline engine may not stop even if the ve hicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.The EV indicator comes on when the vehicle is
driven using only the electric motor (traction
motor) or the gasoline engine is stopped.
80 1-2. Hybrid system
NX300h_U_OM78007U ■
Sounds and vibrations spec ific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For safety, make sure to shift the shift lever to P and
apply the parking brake when parked.
The following sounds or vibrat ions may occur when the hybrid system is operating and
are not a malfunction: ●
Motor sounds may be heard from the engine compartment. ●
Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops. ●
Relay operating sounds such as a snap or soft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear seats, when the hybrid system is started or
stopped. ●
Sounds from the hybrid system may be heard when the back door is open. ●
Sounds may be heard from the transmission wh en the gasoline engine starts or stops,
when driving at low speeds, or during idling. ●
Engine sounds may be heard when accelerating sharply. ●
Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released. ●
Vibration may be felt when the gasoline engine starts or stops.●
Cooling fan sounds may be heard from the air intake vents under the rear seats. ■
Vehicle proximity notification system
In the following cases, the ve hicle proximity notification system may be difficult for sur-
rounding people to hear. ●
In very noisy areas ●
In the wind or the rain
Also, as the vehicle proximity notification system is installed on the front of the vehicle, it
may be more difficult to hear from the re ar of the vehicle compared to the front.■
Maintenance, repair, re cycling, and disposal
Contact your Lexus dealer regarding maintenance, repair, recycling and disposal. Do
not dispose of the vehicle yourself. ■
Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features: P. 6 3 3 )
811-2. Hybrid system
1
For safety and security
NX300h_U_OM78007UHybrid system precautions
The illustration is an example for explanation and may differ from the actual item.
* : AWD models onlyTake care when handling the hybrid system, as it is a high voltage system
(about 650 V at maximum) as well as contains parts that become extremely
hot when the hybrid system is operating. Obey the warning labels attached to
the vehicle.
Warning label
Hybrid battery (traction battery)
Rear electric motor (traction
motor)
*Service plug High voltage cables (orange)
Front electric motor (traction
motor)
Power control unit
Air conditioning compressor1
2
3
4 5
6
7
8
82 1-2. Hybrid system
NX300h_U_OM78007U The cooling air intake and discharge
vents for the hybrid battery (traction
battery) are located under the rear
seats and between the rear seats and
deck board, respectively. If the air
intake vents are blocked, it could lead
to a reduction in hybrid battery (trac-
tion battery) output. The hybrid battery (traction battery)
output will not be reduced, even if the
space between the upper part of the air
discharge vents on the back of the rear
seat and deck board is blocked with lug-
gage, etc.
When a certain level of impact is detected by the impact sensor, the emergency
shut off system blocks the high voltage current and stops the fuel pump to mini-
mize the risk of electrocution and fuel leakage. If the emergency shut off system
activates, your vehicle will not restart. To restart the hybrid system, contact your
Lexus dealer.
A message is automatically displayed when a malfunction occurs in the hybrid
system or an improper operation is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.Hybrid battery (traction battery) air intake and discharge vents Air intake vents
Air discharge vents
Emergency shut off system
Hybrid warning message