charging LEXUS RX450h 2021 User Guide

3345-6. Using the other interior features
5-6.Using the other interior features
The USB charging ports are used to
supply 2.1 A of electricity at 5 V to
external devices.
The USB charging ports are for
charging only. They are not designed
for data transfer or other purposes.
Depending on the external device, it
may not charge properly. Refer to the
manual included with the device
before using a USB charging port.
■Using the USB charging ports
On the instrument panel
On the rear console
Open the lid.
■The USB charging ports can be used
when
The power switch is in ACCESSORY or ON mode.
■Situations in whic
h the USB charging
ports may not operate correctly
●If a device which consumes more than 2.1
A at 5 V is connected
●If a device designed to communicate with
a personal computer, such as a USB
memory device, is connected
●If the connected external device is turned
off (depending on device)
●If the temperature inside the vehicle is
high, such as after the vehicle has been
parked in the sun
■About connected external devices
Depending on the connected external
device, charging may occasionally be sus-
pended and then start again. This is not a
malfunction.
Other interior features
USB charging ports
NOTICE
■To prevent damage to the USB
charging ports
●Do not insert foreign objects into the
ports.
●Do not spill water or other liquids into
the ports.
●Rear console: When the USB
charging ports are not in use, close the
lids. If a foreign object or liquid enters a
port may cause a short circuit.
●Do not apply excessive force to or
impact the USB charging ports.
●Do not disassemble or modify the USB
charging ports.
■To prevent damage to external
devices
●Do not leave external devices in the
vehicle. The temperature inside the
vehicle may become high, resulting in
damage to an external device.
●Do not push down on or apply unnec-
essary force to an external device or
the cable of an external device while it
is connected.

3355-6. Using the other interior features
5
Interior features
A portable device, such as a smart-
phone or mobile battery, can be
charged by just placing it on the
charging area, provided the device is
compatible with the Qi wireless
charging standard created by the
Wireless Power Consortium.
The wireless charger cannot be used
with a portable device that is larger
than the charging area. Additionally,
depending on the portable device, the
wireless charger may not operate
properly. Refer to the operation man-
ual of the portable device.
■The “Qi” symbol
The “Qi” symbol is a trademark of the
Wireless Power Consortium.
■Name for all parts
Power supply switch
Operation indicator light
Charge area
■Using the wireless charger
1 Press the power supply switch of
the wireless charger.
Pressing the switch again turns the wireless
charger off.
When turned on, the operation indicator
light (green) comes on.
When the power switch is turned off, the
on/off state of the wi reless charger will be
memorized.
2 Place a portable device on the
charging area with its charging sur-
face facing down.
While charging, the operation indicator
NOTICE
■To prevent 12-volt battery discharge
Do not use the USB charging ports for a
long period of time with the hybrid sys-
tem stopped.
Wireless charger (if equipped)
A
B
C

3365-6. Using the other interior features
light (orange) will be illuminated.
If charging does not begin, move the porta-
ble device as close to the center of the
charging area as possible.
When charging is complete, the operation
indicator light (green) will illuminate.
■Recharging function
 If a certain amount of time has
elapsed since charging completed
and the portable device has not
been moved, the wireless charger
will restart charging.
 If the portable device is moved
within the charging area, charging
will stop temporarily then restart.
■Operation indicator light status
*: Depending on the portable device, the
operation indicator light may stay illumi-
nated (orange) afte r charging has com-
pleted.
■If the operation indicator light
blinks
If an error is dete cted, the operation
indicator light will blink (orange). Take
the appropriate measures according to
the table below.
 Blinks (orange) at a one second
interval continuously
 Blinks (orange) 3 times repeatedly
 Blinks (orange) 4 times repeatedly
■The wireless charger can be operated
when
The power switch is in ACCESSORY or
Operation indica- tor lightState
OffThe Wireless charger
is off
Green (illumi-
nated)
Standby (charging is
possible)
Charging is complete*
Orange (illumi-
nated)
A portable device has
been placed on the
charging area (identi-
fying the portable
device)
Charging in progress
Suspected causesMeasure
Vehicle to char-
ger communica-
tion failure.Contact your Lexus
dealer.
Suspected causesMeasure
A foreign object
exists between
the portable
device and
charging area.
Remove the foreign
object.
Portable device is
not positioned
properly on the
charging area.Move the portable
device toward the cen-
ter of the charging
area.
Suspected causesMeasure
The temperature
of the wireless
charger is exces-
sively high.Stop charging immedi-
ately and continue
charging after a while.

3375-6. Using the other interior features
5
Interior features
ON mode.
■Portable devices that can be charged
●Portable devices compatible with the Qi
wireless charging standard can be
charged by the wireless charger. How-
ever, compatibility with all devices which
meet the Qi wireless charging standard is
not guaranteed.
●The wireless charger is designed to sup-
ply low power electricity (5 W or less) to
a cellular phone, smartphone, or other
portable device.
■If a cover or accessory is attached to the
portable device
Do not charge a portable device if a cover
or accessory which is not Qi compatible is
attached. Depending on the type of cover
and/or accessory attached, it may not be
possible to charge the portable device. If
the portable device is placed on the
charging area and does not charge, remove
the cover and/or accessories.
■If interference is heard in AM radio
broadcasts while charging
Turn off the wireless charger and check if
the noise is reduced. If noise is reduced,
press and hold the power supply switch of
the wireless charger fo r 2 seconds. The fre-
quency of the wireless charger is changed
and noise may be reduced. When the fre-
quency is changed, the operation indicator
light will blink (orange) 2 times.
■Charging precautions
●If the electronic key cannot be detected
in the cabin, charging cannot be per-
formed. When a door is opened and
closed, charging may be temporarily sus-
pended.
●While charging, the wireless charger and
the portable device will become warm.
This is not a malfunction. If a portable
device becomes warm while charging
and charging stops due to the protection
function of the portable device, wait until
the portable device cools down and
charge it again.
■Sound generated during operation
When the power supply switch is turned on
or while a portable de vice is being identi- fied, operation sounds may be heard. This is
not a malfunction.
■Cleaning the wireless charger
 P.360

3415-6. Using the other interior features
5
Interior features
WARNING
■Caution while driving
When charging a portable device while
driving, for safety reasons, the driver
should not operate the portable device.
■Caution regarding interference with
electronic devices
People with implantable cardiac pace-
makers, cardiac resy nchronization ther-
apy pacemakers or implantable
cardioverter defibrillators, as well as any
other electrical medical device, should
consult their physician about the usage of
the wireless charger.
Operations of the wireless charger may
have an affect on medical devices.
■To prevent damage or burns
Observe the following precautions.
Failure to do so may result in the possibil-
ity of fire, equipment failure or damage,
or burns due to heat.
●Do not put any metallic objects
between the charging area and the
portable device while charging.
●Do not attach metallic objects, such as
aluminum stickers, to the charging
area.
●Do not cover the wireless charger with
a cloth or other obje ct while charging.
●Do not attempt to charge portable
devices which are not compatible with
the Qi wireless charging standard.
●Do not disassemble, modify or remove
the wireless charger.
●Do not apply force or impact to the
wireless charger.
NOTICE
■Conditions in which the wireless
charger may not operate correctly
In the following situations, the wireless
charger may not operate correctly:
●When a portable device is fully
charged
●When there is a foreign object
between the charging area and porta-
ble device
●When a portable device becomes hot
while charging
●When a portable device is placed on
the wireless area with its charging sur-
face facing up
●When a portable device is not cen-
tered on the charging area
●When the vehicle is near a TV tower,
electric power plant, gas station, radio
station, large display, airport or other
facility that generates strong radio
waves or electrical noise
●When the portable device is in contact
with, or is covered by any of the follow-
ing metallic objects:
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
•Metal hand warmers
• Media such as CDs and DVDs
●When wireless keys (that emit radio
waves) other than those of your vehicle
are being used nearby.
If in situations other than above the wire-
less charger does not operate properly
or the operation indicator light is blink-
ing, the wireless charger may be mal-
functioning. Contact your Lexus dealer.

3425-6. Using the other interior features
RX450h
Pull the armrest down for use.
RX450hL
To adjust the armrest angle, raise the
armrest to the highest position and
then lower the armrest to the lowest
position.
Raise the armrest again to the desired
position and the armrest will be locked
at that position.
When the armrest is locked, the armrest
cannot be lowered.
To lower the armrest, raise the armrest to
the highest position again.
An assist grip installed on the ceiling
can be used to support your body
while sitting on the seat.
NOTICE
■To prevent failure or damage to data
●Do not bring magnetic cards, such as a
credit card, or magnetic recording
media, close to the wireless charger
while charging. Otherwise, data may
be erased due to the influence of mag-
netism. Additionally, do not bring pre-
cision instruments such as wrist
watches, close to the wireless charger,
as such objects may malfunction.
●Do not leave portab le devices in the
cabin. The temperature inside the
cabin may become high when parked
in the sun, and cause damage to the
device.
■To prevent 12-volt battery discharge
Do not use the wireless charger for a
long period of time with the hybrid sys-
tem is stopped.
Armrest
NOTICE
■To prevent damage to the armrest
Do not apply too much load on the arm-
rest.
Assist grips
WARNING
■Assist grip
Do not use the assist grip when getting in
or out of the vehicle or rising from your
seat.

3445-6. Using the other interior features
In the luggage compartment
(RX450h)
Open the lid.
In the luggage compartment
(RX450hL)
Open the lid.
■The power outlet can be used when
The power switch is in ACCESSORY or
ON mode.
■Using the power outlet
The shape of the console box rim allows
power cables to be passed through when
the console box lid is closed.
■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.
1 To 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
NOTICE
■To avoid damaging the power outlet
Install the cap or close the lid when the
power outlets 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 hybrid system is not
running.
Sun visors

3776-3. Do-it-yourself maintenance
6
Maintenance and care
2Remove the cover after removing
the clips.
1 Press
2 Pull out
RX450hL
1 Remove the deck board and side
auxiliary box cover. ( P.332)
2 Remove the 12-volt battery cover.
3 Remove the deck side trim cover.
■Before recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol- lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon-
nect the ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the
12-volt battery
●The hybrid system may not start. Follow
the procedure below to initialize the sys-
tem.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
●Unlocking the doors using the smart
access system with pu sh-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
●Start the hybrid system with the power
switch in ACCESSORY mode. The
hybrid system may not start with the
power switch turned off. However, the
hybrid system will operate normally from
the second attempt.
●The power switch mode is recorded by
the vehicle. If the 12-volt battery is recon-
nected, the vehicle will return the power
switch mode to the stat us it was in before
the 12-volt battery was disconnected.
Make sure to turn off the power before
disconnect the 12-volt battery. Take extra
care when connecting the 12-volt battery
if the power switch mode prior to dis-
charge is unknown.
If the system will not start even after multiple
attempts at all the methods above, contact
your Lexus dealer.

3786-3. Do-it-yourself maintenance
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous
and corrosive sulfuric acid and may pro-
duce hydrogen gas which is flammable
and explosive. To reduce the risk of death
or serious injury, take the following pre-
cautions while working on or near the
12-volt battery:
●Do not cause sparks by touching the
12-volt battery terminals with tools.
●Do not smoke or light a match near the
12-volt battery.
●Avoid contact with eyes, skin and
clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when
working near the 12-volt battery.
●Keep children away from the 12-volt
battery.
■Where to safely charge the 12-volt
battery
Always charge the 12-volt battery in an
open area. Do not charge the 12-volt bat-
tery in a garage or closed room where
there is insufficient ventilation.
■How to recharge the 12-volt battery
Only perform a slow charge (5 A or
less). The 12-volt battery may explode if
charged at a quicker rate.
■Emergency measures regarding
electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at
least 15 minutes and get immediate
medical attention. If possible, continue
to apply water with a sponge or cloth
while traveling to the nearest medical
facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If
you feel pain or burning, get medical
attention immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your
skin. Immediately take off the clothing
and follow the procedure above if nec-
essary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately.
■When replacing the 12-volt battery
Use a 12-volt battery designed for this
vehicle. Failure to do so may cause gas
(hydrogen) to enter the passenger com-
partment, causing a fire or explosion.
For replacement of the 12-volt battery,
contact your Lexus dealer.
■When handling the 12-volt battery
 P.453
■When disconnecting the 12-volt bat-
tery (RX450h)
Do not disconnect the negative (-) termi-
nal on the body side as shown. The dis-
connected negative (-) terminal may
touch the positive (+) terminal, which
may cause a short and result in death or
serious injury.
NOTICE
■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.

4197-2. Steps to take in an emergency
7
When trouble arises
■Hybrid system overheat warning light*(warning buzzer)
*: This light illuminates on the multi-information display.
■Charging system warning light*
*: Except F SPORT models: This light illuminates on the multi-information display.
F SPORT models: This light illuminates on the meter.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp
Warning lightDetails/Actions
Indicates the hybrid system has overheated
Stop the vehicle in a safe place.
Handling method ( P.456)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
 The hybrid system;
 The electronic engine control system; or
 The electronic throttle control system;
 Have the vehicle inspected by your Lexus dealer immediately.