battery LEXUS NX300h 2021 Service Manual

2834-6. Driving tips
LEXUS NX300h Owners Manual_USA_M78578_en
4
Driving
restrict travel.
 Stay on established roads. When
conditions are wet, driving tech-
niques should be changed or travel
delayed to prevent damage to
roads.
 Avoid driving on very steep, slippery
roads and other surfaces, such as
sand, where the tires are liable to
lose traction. Your vehicle may not
perform as well as conventional
AWD on-road vehicles on these
surfaces.
■Additional informatio n for off-road driv-
ing
For owners in U.S. mainland, Hawaii and
Puerto Rico:
To obtain additional information pertaining
to driving your vehicle off-road, consult the
following organizations.
●State and Local Parks and Recreation
Departments
●State Motor Vehicle Bureau
●Recreational Vehicle Clubs
●U.S. Forest Service and Bureau of Land
Management
WARNING
■Off-road driving precautions
Always observe the following precau-
tions to minimize the risk of death or seri-
ous injury or damage to your vehicle:
●Drive carefully when off the road. Do
not take unnecessary risks by driving in
dangerous places.
●Do not grip the steering wheel spokes
when driving off-road. A bad bump
could jerk the wheel and injure your
hands. Keep both hands and especially
your thumbs on the outside of the rim.
●Always check your brakes for effec-
tiveness immediately after driving in
sand, mud, water or snow.
●After driving through tall grass, mud,
rock, sand, water, et c., check that there
is no grass, bush, paper, rags, stone,
sand, etc. adhering or trapped to the
underbody. Clear of f any such matter
from the underbody. If the vehicle is
used with these materials trapped or
adhering to the underbody, a break-
down or fire could occur.
●When driving off-road or in rugged
terrain, do not drive at excessive
speeds, jump, make sharp turns, strike
objects, etc. This may cause loss of
control or vehicle rollover causing
death or serious injury. You are also
risking expensive damage to your
vehicle’s suspension and chassis.
NOTICE
■To prevent water damage
Take all necessary safety measures to
ensure that water damage to the hybrid
battery (traction battery), hybrid system
or other components does not occur.
●Water entering the engine compart-
ment may cause seve re damage to the
hybrid system. Water entering the inte-
rior may cause the hybrid battery
stowed under the re ar seats to short
circuit.
●Water entering the hybrid transmis-
sion and rear electric motor (traction
motor) will cause deterioration in
transmission quality. The malfunction
indicator may come on, and the vehi-
cle may not be drivable.
●Water can wash the grease from wheel
bearings, causing rusting and prema-
ture failure, and may also enter the
hybrid transmission case, reducing the
gear oil’s lubricating qualities.

2935-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manual_USA_M78578_en
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Interior features
■When the outside temperature is low
The dehumidification function may not
operate even when “A/C” is pressed or
“A/C” is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning
system to the outside air mode.
●During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time imme-
diately after the air conditioning system is
started in automatic mode.
■Air conditioning filter
 P.368
■Air conditioning system refrigerant
●A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.
●The meaning of each symbol on the label
are as follows:
■Customization
Settings (e.g. A/C automatic mode switch
operation) can be changed.
(Customizable features: P. 443)
Caution
Air conditioning system
Air conditioning system lubri-
cant type
Requires registered techni-
cian to service air conditioning
system
Flammable refrigerant
WARNING
■To prevent the windshield from fog-
ging up
Do not use the front windshield defogger
switch during cool air operation in
extremely humid weather. The difference
between the temperature of the outside
air and that of the windshield can cause
the outer surface of the windshield to fog
up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror sur-
faces when the outside rear view mir-
ror defoggers are on.
●Vehicles with windshield wiper de-
icer: Do not touch the glass at lower
part of the windshield or to the side of
the front pillars when the windshield
wiper de-icer is on.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the
hybrid system is off.
■When repairing/replacing parts of
the air conditioning system
Have repair/replace ment performed by
your Lexus dealer. When a part of the air
conditioning system, such as the evapo-
rator, is to be re placed, it must be
replaced with a new one.

2985-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manual_USA_M78578_en
*:If equipped
Turns the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
■Operation condition
The power switch is in ON mode.
■Timer function
The heated steering wheel will automati-
cally turn off after about 30 minutes.
■Front
Vehicles without seat ventilators
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The level indicator (amber) light up
during operation.
Heated steering wheel*/seat
heaters*/seat ventilators*
 Heated steering wheel
Warm up the grip of the steering wheel
Seat heaters
Warm up the seat upholstery
Seat ventilators
Maintain good airflo w on the seat uphol-
stery by blowing air from the seats
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the fol-
lowing categories comes in contact with
the steering wheel or seats when the
heater is on:
●Babies, small children, the elderly, the
sick and the phys ically challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE
■To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (needles, nails, etc.)
into the seat.
■To prevent battery discharge
Do not use the functions when the hybrid
system is off.
Heated steering wheel
Seat heaters
A

3025-3. Using the interior lights
LEXUS NX300h Owners Manual_USA_M78578_en
■Customization
Setting (e.g. the time elapsed before lights
turn off) can be changed. (Customizable
features: P.443)
■Front interior light
Turns the light on/off (touch the light)
The rear interior light also turns on/off.
However, when the rear interior light has
already been turned on , it will not be con-
trolled by front interior light operations.
Turns the door position on/off 1
On
The front and rear interior lights turn on/
off when a door is opened/closed.
2Off
■Rear interior light
Turns the light on/off
The rear interior light is also turned on/off
by the front interior light operations.
If the light is turned on by front interior light
operation, the rear interior light cannot
turn off by pressing the switch.
Turns the lights on/off (touch the lights)
NOTICE
■Removing light lenses
Never remove the lens for the front inte-
rior light and personal lights. Otherwise,
the lights will be damaged. If the lens
need to remove, contact your Lexus
dealer.
■To prevent 12-volt battery discharge
Do not leave the lights on longer than
necessary when the hy brid system is off.
Operating interior lights
Operating personal lights

3115-5. Using the other interior features
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Interior features
5-5.Using the other interior features
1To set the visor in the forward posi-
tion, flip it down.
2 To set the visor in the side position,
flip down, unhook, and swing it to
the side.
3 To use the side extender, place the
visor in the side position, then slide
it backward.
■Sun visors
Slide the cover to open.
The light turns on when the cover is
opened.
■Auxiliary box
Remove the lid of auxiliary box using the strap . (
P.307)
There is a vanity mirror on the back side of
the lid.
■Automatic light off to prevent 12-volt
battery discharge
If the vanity lights remain on when the
power switch is turned off, the lights will go
off automatically after 20 minutes.
The GPS clock’s time is automatically
adjusted by utilizing GPS time infor-
mation.
For details, refer to the “NAVIGA-
TION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Other interior features
Sun visors
Vanity mirrors
NOTICE
■To prevent damage to the vanity mir-
ror
When the lid of auxiliary box is removed,
do not subject it to strong impacts or set
heavy objects on top of it.
■To prevent 12-volt battery discharge
Do not leave the vanity lights on longer
than necessary when the hybrid system is
off.
Clock
A

3125-5. Using the other interior features
LEXUS NX300h Owners Manual_USA_M78578_en
Please use a power supply for elec-
tronic goods that use less than 12
VDC/10 A (power consumption of
120 W).
When using electronic goods, make
sure that the power consumption of all
the connected power outlets is less
than 120 W.
■Console box
Open the lid.
■Luggage compartment
Open the lid.
■The power outlet can be used when
The power switch is in ACCESSORY or
ON mode.
■When stopping the hybrid system
Disconnect electrical devices with charging
functions, such as mobile battery packs. If
such devices are left connected, the hybrid
system may not stop normally.
■Using power outlet
The notch in console box allows power
cables to be passed through even when the
console box is closed.
Power outlet (12 VDC)
NOTICE
■When power outlet is not in use
To avoid damaging the power outlet,
close the power outlet lid when the
power outlet is not in use.
Foreign objects or liquids that enter the
power outlet may cause a short circuit.
■To prevent 12-volt battery discharge
Do not use the power outlet longer than
necessary when the hy brid system is off.

3135-5. Using the other interior features
LEXUS NX300h Owners Manual_USA_M78578_en
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Interior features
Please use a power supply for elec-
tronic goods that use less than 120
VAC (power consumption of 100 W).
Open the lid.
■The power outlet can be used when
The power switch is in ON mode.
A portable device can be charged by
just placing Qi standard wireless
charge compatible portable devices
according to the Wireless Power Con-
sortium, such as smart phones and
mobile batteries, etc., on the charge
area.
This function cannot be used with por-
table devices that are larger than the
charging area. Also, depending on the
portable device, it may not operate as
normal. Please read the operation
manual for portable devices to be
used.
■The “Qi” symbol
The “Qi” symbol is a trademark of the
Wireless Power Consortium.
Power outlet (120 VAC) (if
equipped)
NOTICE
■When power outlet is not in use
To avoid damaging the power outlet,
close the power outlet lid when the
power outlet is not in use.
Foreign objects or liquids that enter the
power outlet may cause a short circuit.
■To prevent blown fuse
Do not use a 120 VAC appliance that
requires more than 100 W.
If a 120 VAC appliance that consumes
more than 100 W is used, the protection
circuit will cut the power supply.
■To prevent battery discharge
Do not use the power outlet longer than
necessary when the hy brid system is off.
■Appliances that may not operate
properly
The following 120 VAC appliances may
not operate properly even if their power
consumption is under 100 W:
●Appliances with high initial peak watt-
age
●Measuring devices that process pre-
cise data
●Other appliances that require an
extremely stable power supply
Wireless charger (if equipped)

3205-5. Using the other interior features
LEXUS NX300h Owners Manual_USA_M78578_en
Fold down the armrest for use.
An assist grip installed on the ceiling
can be used to support your body
while sitting on the seat.
NOTICE
●Do not leave portable devices in the
cabin. The temperature inside the
cabin may become high, when under
the sun, and cause damage to the
device.
■To prevent 12-volt battery discharge
When the hybrid system is stopped, do
not use the wireless charger for a long
time.
Armrest
NOTICE
■To prevent damage to the armrest
Do not apply too much load on the arm-
rest.
Assist grips
WARNING
■Assist grips
Do not use the assist grip when getting in
or out of the vehicle or rising from your
seat.
NOTICE
■To prevent damage to the assist grip
Do not hang any heavy object or put a
heavy load on the assist grip.

3215-5. Using the other interior features
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Interior features
*:If equipped
The HomeLink® wireless control sys-
tem in your vehicle has 3 buttons which
can be programmed to operate 3 dif-
ferent devices. Refer to the program-
ming methods on the following pages
to determine the method which is
appropriate for the device. HomeLink
® indicator light
Garage door operation indicators
Buttons
■Codes stored in the HomeLink® mem-
ory
●The registered codes are not erased even
if the battery cable is disconnected.
●If learning failed when registering a dif-
ferent code to a HomeLink® button that
already has a code registered to it, the
already registered code will not be
erased.
■Certification for the garage door opener
For vehicles sold in the U.S.A.
Garage door opener*
The garage door opener can be
programmed using the Home-
Link
® to operate garage doors,
gates, entry doors, door locks,
home lighting systems, security sys-
tems, and other devices.
System components
A
B
C

3255-5. Using the other interior features
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Interior features
opener motor will blink twice, indi-
cating that 2-way communication is
enabled.
If the indicators do not flash, perform and
within the first 10 presses of the Home-
Link
® button after programming has been
completed.
2 Press a programmed HomeLink®
button to operate a garage door.
3 Within 1 minute of pressing the
HomeLink
® button, after the
garage door operation has
stopped, press the “Learn” or
“Smart” button on the garage door
opener motor. Within 5 seconds of
the establishment of 2-way com-
munication with the garage door
opener, both garage door opera-
tion indicators in the vehicle will
flash rapidly green and the light on
the garage door opener motor will
blink twice, indicating that 2-way
communication is enabled.
■Reprogramming a single Home-
Link
® button
When the following procedure is per-
formed, buttons which already have
devices registered to them can be
overwritten:
1 With one hand, press and hold the
desired HomeLink
® button.
2 When the HomeLink
® indicator
starts flashing orange, continue to
hold the HomeLink
® button and
perform “Programming Home-
Link
®” 1 (it takes 20 seconds for the HomeLink
® indicator to start
flashing).
■Before programming
●Install a new battery in the transmitter.
●The battery side of the transmitter must
be pointed away from the HomeLink®.
Press the appropriate HomeLink®
button. The HomeLink
® indicator light
should turn on.
The status of the opening and closing
of a garage door is shown by the indi-
cators.
Opening
Closing
This function is only available if the garage
door opener motor used is a compatible
device. (To check device compatibility,
refer to www.HomeLink.com.)
Operating the HomeLink®
ColorStatus
Orange (flashing)Currently open-ing/closing
A
B