remote start LEXUS RCF 2019 Owners Manual
Page 11 of 636
11
RC F_U The SRS airbag and seat belt pretensioner  devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with th e airbags and seat belt pretensioners left as
they are, this may cause an accident such as fire. Be sure to have the systems of the SRS
airbag and seat belt pretensioner removed and disposed of by a qualified service shop or
by your Lexus dealer befo re you scrap your vehicle.
Special handling may apply, See www.dt sc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners,  and wireless remote control batteries.Scrapping of your Lexus
Perchlorate Material WARNING ■
General precautions while driving
Driving under the influence: Never drive  your vehicle when under the influence of
alcohol or drugs that have impaired your  ability to operate your vehicle. Alcohol and
certain drugs delay reaction time, impair  judgment and reduce coordination, which
could lead to an accident that could result in death or serious injury.
Defensive driving: Always driv e defensively. Anticipate mistakes that other drivers or
pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give  your full attention to drivin g. Anything that distracts the
driver, such as adjusting controls, talking on a cellular phone or reading can result in a
collision with resulting death or serious in jury to you, your occupants or others.■
General precaution rega rding children’s safety
Never leave children unattended in the vehicl e, and never allow child ren to have or use
the key.
Children may be able to start the vehicle or sh ift the vehicle into neutral. There is also a
danger that children  may injure themselves by play ing with the windows, the moon
roof, or other features of the  vehicle. In addition, heat build-up or extremely cold tem-
peratures inside the vehicle can be fatal to children. 
Page 80 of 636
80 1-2. Theft deterrent system
RC F_U The alarm uses light and sound to give an  alert when an intrusion is detected.
The alarm is triggered in the following  situations when the alarm is set:●
A locked door is unlocked or opened  in any way other than using the entry
function, wireless remote control or mech anical key. (The doors will lock again
automatically.) ●
The trunk is opened in any way other th an using the entry function or wireless
remote control. ●
The hood is opened.
Close the doors, trunk and hood, and
lock both side doors. The system will be
set automatically after 30 seconds. The indicator light changes from being
on to flashing when the system is set.
Do one of the following to de activate or stop the alarms:●
Unlock the doors. ●
Open the trunk using the entry func tion or wireless remote control.●
Turn the engine switch to ACCESSOR Y or IGNITION ON mode, or start
the engine. (The alarm will be deactivat ed or stopped after a few seconds.)■
System maintenance
The vehicle has a maintenance-free type alarm system. ■
Items to check before  locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing: ●
Nobody is in the vehicle. ●
The windows and moon roof (if equipped) are closed before the alarm is set. ●
No valuables or other personal  items are left in the vehicle.Alarm The alarm
Setting the alarm system
Deactivating or stopping the alarm 
Page 136 of 636
136 2. Instrument cluster
RC F_U Press the “MENU” button on the Remote  Touch, then select “Info” on the
“Menu” screen, and then select “ECO”. If the “History” screen  is displayed, select  “Trip Information”.■
Trip information screen
Resetting the consumption data
Fuel consumption in the past 15
minutes
Current fuel consumption
Displays the average vehicle
speed since the engine was
started.
Displays the elapsed time since
the engine was started.
Cruising range (  P. 137)
Average fuel consumption for the past 15 minutes is divided by color into past
averages and averages attained since the  engine switch was last turned to IGNI-
TION ON mode. Use the displayed average fuel consumption as a reference.
The image is an example only.Trip information  1
2
3
4
5
6 
Page 140 of 636
140
RC F_U 3-1. Key information
The following keys are provided with the vehicle.
Electronic keys • Operating the smart access system
with push-button start (  P. 156)
• Operating the wireless remote con-
trol function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped) Operating the smart access system with
push-button start (  P. 156)
Locks the doors (  P. 145)
Unlocks the doors (  P. 145)
Opens the windows and moon roof
*(  P. 145)
Opens the trunk (  P. 151)
Sounds the alarm (  P. 141)
* : This setting must be customized at your
Lexus dealer.Keys The keys 1
2
3
4
Wireless remote control 1
2
3
4
5 
Page 143 of 636
1433-1. Key information
3
Operation of each component
RC F_U ■
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 soun d in the cabin when the engine is stopped.
(  P. 485) ●
As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The  following symptoms indi cate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. (  P. 427)
• The smart access system with push-button  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. 427 ■
Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask your Lexus
dealer for details. ■
If a wrong key is used
The key cylinder rotates freely, isol ated from the internal mechanism. 
Page 145 of 636
145
3
Operation of each component
RC F_U 3-2. Opening, closing and locking the doors and trunk
◆ Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door.  Grip the passen-
ger’s door handle to unlock both
side doors.
* Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
* : The door unlock settings can be
changed. (  P. 149, 569)
Touch the lock sensor (indentation on the side of the door handle) to lock
both side doors. Check that the door  is securely locked.
◆ Wireless remote control
Locks both side doors Check that the door is securely
locked.
Unlocks both side doors Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other door.
Press and hold to open the windows
and moon roof.
*
* : This setting must be custom ized at your Lexus dealer.Doors Unlocking and locking the doors from the outside 1
2
1
2 
Page 146 of 636
146 3-2. Opening, closing and  locking the doors and trunk
RC F_U ■
Operation signals
A buzzer sounds and the emergency flashers  flash to indicate that the doors have been
locked/unlocked. (Locked: once; Unlocked: twice)
A buzzer sounds to indicate that th e windows and moon roof are operating.■
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.  ■
Welcome light illumination control
The side marker, parking, tail  and license plate lights automati cally turn on at night when
the doors are unlocked using the entry function or wireless remote control if the light
switch is in the “AUTO” position. ■
When the door cannot be locked by the lock sensor on the surface of the door handle
■
Door lock 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 d oor to stop the buzzer, and lock the vehicle
once more. ■
Setting the alarm
Locking the doors will set the alarm system. (  P. 80)■
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. 518) 
Replace the key battery with a new one if it is depleted. (  P. 427)Use your palm to touch the lock sensor. 
Page 149 of 636
1493-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC F_U ■
Side window open/close function linked to door operation
When a door is opened, its window opens s lightly. When a door is closed, its window
closes completely. ■
Switching the door unlock function
It is possible to set which  doors the entry function unlock s using the wireless remote con-
trol. 
Turn the engine switch off.
When the indicator light on  the key surface is not on, press and hold  ,   or
 for approximately 5 seconds  while pressing and holding  . 
The setting changes each time  an operation is performed, as shown below. (When
changing the setting continuously, release the  buttons, wait for at  least 5 seconds, and
repeat step  .)
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 af ter   is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. (  P. 80)■
Impact detection door lock release system
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. ■
Using the mechanical key
The doors can also be unlocked with the mechanical key. (  P. 518)■
Conditions affecting the oper ation of the smart access sy stem with push-button start
or wireless remote control
 P. 158 ■
Customization
Settings (e.g. unlocking function  using a key) can be changed. 
(Customizable features:   P. 569) 1
2
2
Multi-information 
display Unlocking function Beep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings once
Holding the passenger’s door
handle unlocks both side doors.
Holding either door handle
unlocks both side doors. Exterior: Beeps twice
Interior: Pings once 
Page 151 of 636
1513-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC F_U Press the opener switch.
◆ Smart access system with push-button start
While carrying the electronic key,
press the button on the trunk lid. When both side doors are unlocked
using one of the following methods,
the trunk can be opened without the
electronic key: 
• Entry function
• Wireless remote control
• Door lock switches
• Automatic door unlocking system
• Mechanical key 
◆ Wireless remote control
Press and hold the switch. A buzzer sounds.Trunk The trunk can be opened using the trunk opener, entry function or wireless
remote control. 
Opening the trunk from inside the vehicle
Opening the trunk from outside the vehicle 
Page 153 of 636
1533-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC F_U ■
Trunk light ●
The trunk light turns on when the trunk is opened. ●
If the trunk light is left on when the engine sw itch is turned off, the light will go off auto-
matically after 20 minutes. ■
Function to prevent the trunk being lo cked with the electronic key inside ●
When both side doors are locked, closing the  trunk lid with the electronic key left inside
the trunk will sound an alarm.
In this case, the trunk lid can be opened by pressing the trunk release button on the
trunk lid. ●
If the spare electronic key is  put in the trunk with both side doors locked, the key con-
finement prevention function is activated so  the trunk can be opened. In order to pre-
vent theft, take all el ectronic keys with you when leaving the vehicle.●
If the electronic key is put  in the trunk with both side doors locked, the key may not be
detected depending on the location of the  key and the surrounding  radio wave condi-
tions. In this case, the key confinement prev ention function cannot be activated, causing
the doors to lock when the trunk is closed. Make sure to check where the key is before
closing the trunk. ●
The key confinement prevention function cannot  be activated if either door is unlocked.
In this case, open the trunk using the trunk opener. ■
Internal trunk release lever
■
Using the mechanical key
The trunk can be also opened using the mechanical key. (  P. 519)■
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. 519)
Replace the key battery with a new one if it is depleted. (  P. 427)■
When leaving a key to the vehicle with a parking attendant
 P. 142 ■
Customization
The trunk unlocking operation can be  changed. (Customizable features:   P. 569)The trunk lid can be open ed by pulling the glow-
in-the-dark lever  located on the inside of the
trunk lid upward.
The lever will continue to glow for some time
after the trunk lid is closed.