2019 LEXUS RCF battery

344 5-1. Using the air conditioning system
RC F_U Turn the heated steering wheel on/off The indicator light comes on when the
heated steering wheel is operating.
●
The heated steering wheel can be used wh en the engine switch is in IGNITION ON
mode. ●
The heated steering wheel will automati cally turn off after about 30 minutes.Heated steering wheel 
/seat heaters 
/seat ventila-
tors 
 : If equippedHeated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat vent ilators maintain good ventilation using
a fan built into the seat. WARNING ●
Care should be taken to prevent injury if anyone in the following categories comes in
contact with the steering wheel or seats when the heater is on:
• Babies, small children, the elderly, the sick and the ph ysically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.) ●
Observe the following precautions to prevent the minor burns or overheating
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE ●
Do not put heavy objects that have an unev en surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat. ●
To prevent battery discharge, do not us e the functions when the engine is off.
Heated steering wheel

3495-2. Using the interior lights
RC F_U 5
Interior features Turns the lights on/off (touch the lights) ●
Illuminated entry system: Th e lights automatically turn on/off according to engine
switch mode, the presence of the electronic key, whether the doors are locked/
unlocked, and whether the doors are opened/closed. ●
If the interior lights remain on when the engine switch is turned off, the lights will go off
automatically after 20 minutes. ●
In the following cases, the front interior lights and personal lights may not respond as
normal.
• When water, dirt, etc., have adhered to the lens surface
• When operated with a wet hand
• When wearing gloves, etc. ●
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features:  P. 576)Personal lights
NOTICE ●
Never remove the lens for the front interior light and personal lig hts. Otherwise, the
lights will be damaged. ●
To prevent battery discharge, do not leave the lights on longer than necessary when
the engine is off.

354
RC F_U 5-4. Using the other interior features
To set the visor in the forward posi-
tion, flip it down.
To set the visor in the side position,
flip down, unhook, and swing it to the
side.
To use the side extender, place the
visor in the side position, then slide it
backward.
Slide the cover to open. The light turns on when the cover is
opened.
If the vanity lights remain on when the engine switch is turned off, the lights will go off
automatically after 20 minutes.Other interior features Sun visors 1
2
3
Vanity mirrors
NOTICE
To prevent battery discharge, do not leave th e lights on longer than necessary when the
engine is off.

356 5-4. Using the other interior features
RC F_U ●
The power outlet can be used when the engine switch is in ACCESSORY or IGNI-
TION ON mode.
Fold down the armrest for use. ●
The shape of the console box rim allows power
cables to be passed through when the console
box lid is closed.
NOTICE ●
To avoid damaging the power outlet, close the power outlet lid when the power outlet
is not in use. Foreign objects or liquids th at enter the power outlet may cause a short
circuit. ●
To prevent battery discharge, do not use the power outlet longer than necessary
when the engine is off.
Armrest (RC F)
NOTICE
To prevent damage to the armrest, do not apply too much load on the armrest.

3655-4. Using the other interior features
RC F_U 5
Interior features Press and hold the 2 outside buttons for
10 seconds until the HomeLink ®
indi-
cator light changes from continuously
lit (orange) to rapidly flashing (green). If you sell your vehicle, be sure to erase
the programs stored in the HomeLink ®
memory. ■
Codes stored in the HomeLink ®
memory●
The registered codes are not erased even if the battery cabl e is disconnected.●
If learning failed when registerin g a different code to a HomeLink ®
button that already
has a code registered to it, the alread y registered code will not be erased.■
Before programming ●
Install a new battery in the transmitter. ●
The battery side of the transmitter must be pointed away from the HomeLink 
.■
When support is necessary
Visit on the web at www.homelink.com/lexus
or call 1-800-355-3515.Erasing the entire HomeLink ®
memory (all three codes)
WARNING ■
When programming a garage door or other remote control device
The garage door or other device may operat e, so ensure people and objects are out of
danger to prevent potential harm. ■
Conforming to federal safety standards
Do not use the HomeLink ®
compatible transceiver with any garage door opener or
device that lacks safety stop and reverse features as requ ired by federal safety stan-
dards.
This includes any garage door that canno t detect an interfering object. A door or
device without these features increases the risk of death or serious injury.■
When operating or programming HomeLink ®
Never allow a child to operat e or play with the HomeLink ®
buttons.

368 5-4. Using the other interior features
RC F_U ■
Circling calibration
Stop the vehicle in a place where it is safe to drive in a circle.
Press and hold the switch for 9
seconds. “C” appears on the compass display.
Drive the vehicle at 5 mph (8
km/h) or less in a circle until a
direction is displayed. If there is not enough space to drive
in a circle, drive around the block
until the direction is displayed.■
Conditions unfavorable to correct operation
The compass may not show the correct di rection in the follo wing conditions:●
The vehicle is stopped immediately after turning. ●
The vehicle is on an inclined surface. ●
The vehicle is in a place where the earth's ma gnetic field is subject to interference by
artificial magnetic fields (underground car park/parking lot, under a steel tower,
between buildings, roof car park/parking lot, near an intersection, near a large vehicle,
etc.). ●
The vehicle has become magnetized.
(There is a magnet or metal object near the inside rear view mirror.)●
The battery has been disconnected. ●
A door is open. 1
2
3
WARNING ■
While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.■
When doing the circling calibration
Secure a wide space, and watch out for pe ople and vehicles in the neighborhood. Do
not violate any local traffic rules wh ile performing ci rcling calibration.

375
Maintenance and care
6
RC F_U 6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 376
Cleaning and protecting
the vehicle interior................... 381
6-2. Maintenance
Maintenance
requirements ............................384
General maintenance.............. 387
Emission inspection and
maintenance (I/M)
programs ....................................390
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................. 391
Hood ............................................... 393
Positioning a floor jack ............ 394
Engine compartment ............... 397
Tires ...................................................412
Tire inflation pressure............... 420
Wheels ........................................... 423
Air conditioning filter ............... 425
Electronic key battery .............. 427
Checking and replacing
fuses .............................................. 429
Light bulbs..................................... 432

3776-1. Maintenance and care
6
Maintenance and care
RC F_U ■
Automatic car washes (vehicles without CFRP parts) ●
Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend the mirrors before driving. ●
RC F: Wash the vehicle with the active rear wing retracted. If the vehicle is washed with
the active rear wing raised, depending on the type of automatic car wash, the brushes
of the automatic car wash may become stuck on the active rear wing. In this case, the
active rear wing may not be washed very well or may even be scratched or damaged.●
Brushes used in automatic car washes may scratch the vehicle body and damage the
paint. ■
Automatic car washes (vehicles with CFRP parts)
Do not use automatic car washes as they may scratch the CFRP parts and damage the
paint. ■
High pressure car washes ●
Do not allow the nozzles of the car wash to come within close proximity of the windows. ●
Before using the car wash, check that the fuel filler door on your vehicle is closed prop-
erly. ■
When using a car wash
If the door handle becomes wet while the electronic key is within the effective range, the
door may lock and unlock repeatedly. In that case, follow the following correction proce-
dures to wash the vehicle: ●
Place the key in a position 6 ft. (2 m) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.) ●
Set the electronic key to battery-saving mo de to disable the sm art access system with
push-button start. (  P. 158)■
Aluminum wheels (vehicles without matte black painted wheels) ●
Remove any dirt immediately by using a neutral detergent. ●
Wash detergent off with water immediately after use. ●
To protect the paint from damage, make sure to observe the following precautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather■
Aluminum wheels (vehicles with matte black painted wheels)
As matte black painted wheels require differ ent cleaning methods than conventional alu-
minum wheels. For details, consult your Lexus dealer. ●
Remove dirt using water. If the wheels are excessively dirty, use a sponge or soft cloth
dampened with a diluted neutral detergent to remove the dirt. ●
When using detergent, make sure to rinse it off with water immediately. Then use a soft
cloth to wipe off the water. ●
To prevent the matte black paint from being damaged, make sure to observe the follow-
ing precautions:
• Do not scrub or polish the whee ls using a brush or dry cloth.
• Do not use any wheel coatings or abrasive detergents.
• When using an automatic car wash, disable/do not select the wheel brush function
(if such an option is available).
• Do not use a high pressure pre ssure washer or steam cleaner.
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather.