key battery LEXUS RC300 2022 Owners Manual

RC350_RC300_U
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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before drivingOpening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
DrivingOperations and advice which are necessary for driving
(Main topics: Starting engine, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat belt,
SRS airbag and headlight aim instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

4TABLE OF CONTENTS
RC350/RC300 Owner's Manual
Air conditioning filter..................273
Electronic key battery ................ 275
Checking and replacing fuses ........................................................... 276
Headlight aim................................. 278
Light bulbs ....................................... 279
7-1. Essential information Emergency flashers..................... 284
If your vehicle has to be stopped in an emergency ............................. 284
If the vehicle is submerged or water on the road is rising .................. 285
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 287
If you think something is wrong ............................................................ 291
Fuel pump shut off system ........ 292
If a warning light turns on or a warn- ing buzzer sounds ..................... 293
If a warning message is displayed ............................................................ 301
If you have a flat tire..................... 305
If the engine wi ll not start ........... 312
If you lose your keys ..................... 314
If the fuel filler door cannot be opened............................................ 314
If the electronic key does not oper- ate properly .................................. 315
If the vehicle battery is discharged ............................................................ 317
If your vehicle overheats ........... 320
If the vehicle becomes stuck ... 3248-1. Specifications
Maintenance data (fuel, oil level, etc.) ................................................. 326
Fuel information............................ 337
Tire information ............................ 339
8-2. Customization Customizable features .............. 349
8-3. Items to initialize Items to initialize ........................... 358
9-1. For owners Reporting safety defects for U.S. owners ........................................... 360
Reporting safety defects for Cana- dian owners ................................. 360
Seat belt instructions for Canadian owners (in French) .................... 361
SRS airbag instructions for Cana- dian owners (in French) ......... 362
Headlight aim instructions for Canadian owners (in French)
.......................................................... 368
What to do if... (Troubleshooting) .......................................................... 370
Certifications ................................. 373
Alphabetical Index ...................... 384
7When trouble arises
8Vehicle specifications
9For owners
Index

581-3. Theft deterrent system
RC350/RC300 Owner's Manual
●The trunk is opened using the mechanical
key.
●A person inside the vehicle opens a door,
the trunk or hood, or unlocks the vehicle
using an inside lock button.
●The battery is rech arged or replaced
when the vehicle is locked. ( P.319)
■Alarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle
unlocks the door and the alarm is acti-
vated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the bat-
tery
NOTICE
■To ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.

823-1. Key information
RC350/RC300 Owner's Manual
3-1.Key information
The following keys are provided with
the vehicle.Electronic keys
• Operating the smart access system with push-button start ( P.93)
• Operating the wireless remote control function ( P.84)
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P.93)
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside
the card key should be used only if a
problem arises, such as when the card key does not operate properly.
●If it is difficult to
take out the mechanical
key, push down the lock release button
using a pen tip etc. If it is still difficult to
pull it out, use a coin etc.
●To store the mechanical key in the card
key, insert it while pressing the lock
release button.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
■When riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that
the buttons are not likely to be pressed acci-
dentally. Pressing a button may cause the
electronic key to emit radio waves that
could interfere with the operation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
(The card key battery life is about a year
and a half.)
●If the battery becomes low, an alarm will
sound in the cabin an d a message will be
shown on the multi-information display
when the engine is stopped.
Keys
The keys
A
B
C
D

833-1. Key information
RC350/RC300 Owner's Manual
3
Before driving
●As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electrical appliances that
produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■Replacing the battery
P.275
■Confirmation of the registered key
number
The number of keys al ready registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for long periods of time.
●Do not get the keys wet or wash them
in an ultrasonic washer etc.
●Do not attach meta llic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemb le the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric appliances within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key-rela ted problems
P.315
■When an electronic key is lost
P.314
■Handling the card key (if equipped)
●Do not apply excess force when insert-
ing the mechanical key into the card
key. Doing so may damage the card
key.
●If the battery or card key terminals get
wet, the battery may corrode. If the key
is dropped into water, or if drinking
water etc. is spilled on the key, immedi-
ately remove the battery cover and
wipe the battery and terminals. (To
remove the battery cover, lightly grasp
and pull it.) If the battery is corroded,
have your Lexus dealer replace the
battery.
●Do not crush the battery cover or use
a screwdriver to remove the battery
cover. Forcibly removing the battery
cover may bend or damage the key.
●If the battery cover is frequently
removed, the battery cover may
become loose.

843-1. Key information
RC350/RC300 Owner's Manual
The electronic keys are equipped with
the following wireless remote control:Locks the doors ( P.86)
Unlocks the doors ( P.86)
Opens the windows and moon roof
(if equipped)
* (  P.86)
Opens the trunk ( P.91)
Sounds the alarm
*: This setting must be customized at your
Lexus dealer.
■Panic mode
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will flash
to deter any person from trying to break
into or damage your vehicle.
To stop the alarm, pr ess any button on the
electronic key.
To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be inserted in
one direction, as the key only has grooves
on one side. If the key cannot be inserted in
a lock cylinder, turn it over and re-attempt
to insert it.
After using the mechanical key, store it in
the electronic key. Carry the mechanical
key together with the electronic key. If the
electronic key battery is depleted or the
entry function does not operate properly,
you will need the mechanical key.
( P.315)
NOTICE
●When installing the battery, make sure
to check the direction of the battery.
Installing the battery in the wrong
direction may cause the battery to
deplete rapidly.
●The surface of the card key may be
damaged, or its coating may peel off in
the following situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.
Wireless remote control
A
B
C
D
E
Using the mechanical key

873-2. Opening, closing and locking the doors and trunk
RC350/RC300 Owner's Manual
3
Before driving
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. ( P.57)
■Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, both side doors are
unlocked. Depending on the force of the
impact or the type of accident, however, the
system may not operate.
■Operation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocke d. (Locked: once;
Unlocked: twice)
A buzzer sounds to indicate that the win-
dows and moon roof are operating.
■Welcome light illumination control
The side marker, parking, tail and license
plate lights automatically turn on at night when the doors are unlocked using the
entry function or wireless remote control if
the light switch is in the position.
■Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked,
the security feature automatically locks the
vehicle again.
■When the door cannot be locked by the
lock sensor on the surface of the door
handle
Use your palm to touch the lock sensor.
■Open door warning buzzer
If an attempt to lock the doors is made when
a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the
door to stop the buzz er, and lock the vehi-
cle once more.
■Setting the alarm
Locking the doors will set the alarm system.
( P.57)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
P.94
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key and/or inside lock
buttons to lock and unlock the doors.
( P.315)
Replace the key battery with a new one if it
is depleted. ( P.275)
■Customization
Some functions can be customized.
( P.349)
Multi-information
display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Holding the driver’s
door handle unlocks
only the driver’s
door.
Holding the passen-
ger’s door handle
unlocks both side
doors.
Exterior: Beeps twice
Interior: Pings once
Holding either door
handle unlocks both
side doors.

923-2. Opening, closing and locking the doors and trunk
RC350/RC300 Owner's Manual
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to unlock the trunk.
(  P.315)
Replace the key battery with a new one if it
is depleted. ( P.275)
■If a symbol indicating the trunk opens is
shown on the multi-information display
P.88
■Customization
Some functions can be customized.
(  P.349)
To protect luggage stored in the trunk
against theft, the luggage security sys-
tem can be set to on.
1 Move the luggage security system
levers to the lock position.
To lock a luggage security system lever
from inside the cabin, fold the rear
seatback forward, move the lever to the
lock position, and return the seatback to its
original position.
2To disable the trunk opener, turn
the main switch in the glove box off.
On
Off
When the main switch is off, the trunk lid
cannot be opened even with the wireless
remote control or entry function.
■When leaving a key to the vehicle with a
parking attendant
P.85
Luggage security system
A
B

943-2. Opening, closing and locking the doors and trunk
RC350/RC300 Owner's Manual
●When an interior alarm sounds continu-
ously
■Battery-saving function
The battery-saving fu nction will be acti-
vated in order to prevent the electronic key
battery and the vehicle battery from being
discharged while the vehicle is not in opera-
tion for a long time.
●In the following situations, the smart
access system with pu sh-button start may
take some time to unlock the doors.
• The electronic key has been left within approximately 6 ft. (2 m) of the outside of
the vehicle for 10 minutes or longer.
• The smart access system with push-but- ton start has not been used for 5 days or
longer.
●If the smart access system with push-but-
ton start has not been used for 14 days or longer, the doors cannot be unlocked at
the passenger door. In this case, take hold
of the driver’s door handle, or use the
wireless remote control or mechanical
key, to unlock the doors.
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery
depletion is minimized by stopping the elec-
tronic key from receiving radio waves.
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button start
cannot be used. To cancel the function,
press any of the electronic key buttons.
■Conditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the following
situations, the communication between the
electronic key and the vehicle may be
affected, preventing the smart access sys-
tem with push-button start, wireless remote
control and engine immobilizer system
from operating properly.
(Ways of coping: P.315)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio station, large display,
airport or other fac ility that generates
strong radio waves or electrical noise
●When carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
●When the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
SituationCorrection
procedure
The trunk was closed
while the electronic key
was still inside the trunk
and both side doors were
locked.Retrieve the
electronic key
from the trunk
and close the
trunk lid.
An attempt was made to
lock the vehicle while a
door was open.Close both
side doors and
lock the doors
again.
SituationCorrection procedure
The engine switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the engine switch
was in ACCESSORY
mode).
Turn the engine
switch off and
close the
driver’s door.
The engine switch was
turned off while the
driver’s door was open.Close the
driver’s door.

953-2. Opening, closing and locking the doors and trunk
RC350/RC300 Owner's Manual
3
Before driving
• Cigarette boxes that have aluminum foil
inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio
waves) are being used nearby
●When carrying the electronic key
together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the rear
window
●When the electronic key is placed near a
battery charger or electronic devices
■Note for the entry function
●Even when the electronic key is within the
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win-
dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or
in a high place, or too close to the rear
bumper center when the trunk is opened.
• The electronic key is on the instrument
panel, rear package tray or floor, or in the
door pockets or glove box when the
engine is started or engine switch modes
are changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the ra dio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only the doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electronic
key is not inside the
vehicle, it may be possible to start the
engine if the electronic key is near the
window.
●The doors may unlock or lock if a large
amount of water splashes on the door
handle, such as in the rain or in a car
wash, when the electronic key is within
the effective range. (The doors will auto-
matically be locked after approximately
60 seconds if the doors are not opened
and closed.)
●If the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock or unlock sensor
while wearing gloves may prevent lock or
unlock operation.
●When the lock operation is performed
using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given.
●If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In this ca se, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( P.94)
●If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock both side doors.
●The lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc. Clean the lock sensor and attempt to
operate it again.