2021 LEXUS RCF alarm

993-2. Opening, closing and locking the doors and trunk
3
Before driving
■Effective range (areas within which the
electronic key is detected)
When locking or unlocking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of an outside door handle. (Only the doors
detecting the key can be operated.)
When opening the trunk
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of the trunk release button.
When starting the engine or changing
engine switch modes
The system can be operated when the
electronic key is inside the vehicle.
■Alarms and warning messages
An alarm sounds and warning messages
are displayed on the multi-information dis-
play to protect against unexpected acci-
dents or theft of the vehicle resulting from
erroneous operation. When a warning mes-
sage is displayed, take appropriate mea-
sures based on the displayed message.
(  P.310)
When only an alarm sounds, circumstances
and correction procedures are as follows.
●When an exterior alarm sounds once for
5 seconds
●When an interior alarm sounds continu-
ously
■Battery-saving function
The battery-saving function 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
A
B
C
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.

1013-2. Opening, closing and locking the doors and trunk
3
Before driving
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 spla shes 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 d oors 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 case, 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.100)
●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.
●A sudden handle operation or a handle
operation immediately after entering the
effective range may prevent the doors
from being unlocked. Touch the door
unlock sensor and check that the doors
are unlocked before pulling the door
handle again.
●Unlocking the vehicle may take more
time if another electronic key is within the
effective range.
■When the vehicle is not driven for
extended periods
●To prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
●The smart access system with push-but-
ton start can be deactivated in advance.
■To operate the system properly
●Make sure to carry the electronic key
when operating the system. Do not get
the electronic key too close to the vehicle
when operating the system from the out-
side of the vehicle.
Depending on the position and holding
condition of the electr onic key, the key may
not be detected correctly and the system
may not operate properly. (The alarm may
go off accidentally, or the door lock pre-
vention function may not operate.)
●Do not leave the electr onic key inside the
trunk.
The key confinement prevention function
may not operate, depending on the loca-
tion of the key (close to a spare tire [if
equipped], the inside edge of the trunk),
conditions (inside a metal bag, close to
metallic objects) an d the radio waves in
the surrounding area. ( P.98)
■If the smart access system with
push-button start does not operate
properly
●Locking and unloc king the doors and
opening the trunk: P.332
●Starting the engine:  P.333
■Customization
Some functions can be customized.
(  P.360)

3337-2. Steps to take in an emergency
7
When trouble arises
■Key linked functions
1 Locks both side door
2 Closes the windows and moon roof (if
equipped) (turn and hold)
*
3Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key again unlocks
the other door.
4 Opens the windows and moon roof (if
equipped) (turn and hold)
*
*
: These settings must be customized at
your Lexus dealer.
1 Ensure that the shift lever is in P and
depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will
turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in custom-
ization setting, the engine switch will turn
to ACCESSORY mode.
3 Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4 Press the engine switch.
In the event that the engine still cannot
be started, contact your Lexus dealer.
■Stopping the engine
Shift the shift lever to P and press the engine
switch as you normally do when stopping
the engine.
■Electronic key battery
As the above procedure is a temporary
measure, it is recommended that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( P.283)
■Alarm (For Canada)
Using the mechanical ke y to lock the doors
will not set the alarm system.
If a door is unlocked using the mechanical
WARNING
■When using the mechanical key and
operating the power windows or
moon roof
Operate the power window or moon
roof after checking to make sure that
there is no possibilit y of any passenger
having any of their body parts caught in
the window or moon roof.
Also, do not allow ch ildren to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window or moon roof.
Starting the engine

3347-2. Steps to take in an emergency
key when the alarm system is set, the alarm
may be triggered.
■Changing engine switch modes
Release the brake pedal and press the
engine switch in step 3 above.
The engine does not start and modes will be
changed each time the switch is pressed.
(  P.130)
If you have a set of jumper (or booster)
cables and a second vehicle with a
12-volt battery, you can jump start your
vehicle by following the steps below.
1 Confirm that the electronic key is
being carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked.
( P.59)
2 Open the hood. ( P.264)
3 Remove the engine cover.
Raise the rear of the engine cover
to remove the rear clip, and then
If the vehicle battery is dis-
charged
The following procedures may be
used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the engine

3648-2. Customization
■Driving position memory* ( P.105)
*:If equipped
■Power easy access system ( P.105)
*:If equipped
■Power windows ( P.112)
Trunk unlocking operationPress and hold
(short)
One short press
——O
Push twice
Press and hold (long)
Off
Alarm (panic mode)OnOff——O
FunctionDefault settingCustomized settingABC
FunctionDefault settingCustomized setting
Selecting the door linking
driving position memory with
door unlock operation
Driver’s doorBoth side doors——O
ABC
FunctionDefault settingCustomized setting
Driver’s seat movement when
exiting the vehicleFullOffO—OPartial
Steering wheel movement*OnOff——O
ABC
FunctionDefault settingCustomized setting
Mechanical key linked opera-
tionOffOn——O
Wireless remote control
linked operationOffOn (Open only)——O
Wireless remote control
linked operation signal
(buzzer)
OnOff——O
ABC

391What to do if... (Troubleshooting)
Is the engine switch in IGNITION
ON mode?
If you cannot release the shift lever by
depressing the brake pedal with the engine
switch in IGNITION ON mode. ( P.133)
 It is locked automatically to prevent
theft of the vehicle. ( P.128)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.113)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not running) for
a period of time. ( P.131)
 The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( P.306)
 The parking brake indicator is on
Is the parking brake released? ( P.137)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.302, 310)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.58)
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors.
 Open the trunk using the entry
function or wireless remote control.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.310)
 When a warning light turns on or a
warning message is displayed, refer
to P.302, 310.
The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed

393Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 282
Automatic air conditioning system ..... 213
Micro dust and pollen filter..................... 217
ABS (Anti-lock Brake System)................199 ABS warning light .....................................303
Active rear wing.............................................195
Adaptive Variable Suspension System200
Air conditioning filter ................................. 282
Air conditioning system Air conditioning filter ............................... 282
Automatic air conditioning system ..... 213
Micro dust and pollen filter..................... 217
Airbags Airbag operating conditions................... 30
Airbag precautions for your child .........32
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................. 30
Curtain shield airbag precautions ........32
Front passenger occupant classification system ............................................................. 36
General airbag precautions ....................32
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions .............................32
Side and curtain shield airbags operating conditions...................................................... 30
Side and curtain shield airbags precau- tions ...................................................................32
SRS airbags ..................................................... 28
SRS warning light ......................................303
Alarm ................................................................... 58 Warning buzzer ......................................... 302
Anchor brackets ...................................... 43, 51
Antennas (smart access system with push-button start)........................................ 98
Anti-lock Brake System (ABS)................199 ABS warning light .....................................303 Approach warning........................................ 176
Armrest............................................................ 228
Assist grips ..................................................... 229
Audio system-linked display ........................81
Automatic air conditioning system ........213
Automatic headlight leveling system ....139
Automatic headlight leveling system warning light............................................. 306
Automatic High Beam ............................... 140
Automatic light control system............... 138
Automatic transmission ..............................132 M mode ........................................................... 135
Paddle shift switches ....................... 134, 135
Average fuel economy................................. 75
Average vehicle speed ................................ 75
B
Back-up light Replacing light bulbs ............................... 289
Battery Battery checking .......................................... 271
Charging system warning light...........302
If the battery is discharged ....................334
Preparing and checking before winter..........................................................................204
Blind Spot Monitor (BSM)......................... 179
Brake Brake system warning light ..................302
Fluid...................................................................346
Parking brake ................................................137
Brake assist ......................................................199
Break-in tips...................................................... 119
Brightness control Instrument panel light control................. 73
BSM (Blind Spot Monitor)......................... 179
C
Card key ............................................................ 88
Care Exterior................................... 240, 248, 252
Interior .............................................................245

402Alphabetical Index
Tilt and telescopic steering control switch.......................................................................... 108
Tire pressure warning reset switch .. 278
Trunk opener main switch ....................... 98
Trunk opener switch ................................... 96
TVD (Toruqe Vector ing Differential)
switch............................................................. 198
VSC OFF switch .......................................200
Window lock switch ................................... 113
Windshield wiper and washer switch143
Windshield wiper de-icer switch ........ 217
T
Tachometer....................................................... 66 Rev indicator ................................................... 70
Rev peak ............................................................. 71
Tail lights Light switch .................................................... 138
Replacing light bulbs................................289
Theft deterrent system Alarm ..................................................................58
Engine immobilizer system ..................... 57
Theft prevention labels............................... 60
Tire inflation pressure Maintenance data...................................... 347
Tire inflation pressu re display function
......................................................................... 275
Tire pressure warning light ................... 307
Tire information ..............................................351 Glossary......................................................... 354
Size.................................................................... 352
Tire identification number ..................... 352
Uniform Tire Quality Grading............353
Tire infration pressure ...................................76
Tire pressure display .................................. 275
Tire pressure warning system Function .......................................................... 275
Initializing ........................................................277
Installing tire pressure warning valves and transmitters .......................................277
Registering ID codes ............................... 278
Tire pressure warning light ................... 307 Tires
Chains ............................................................ 205
Checking ....................................................... 273
Emergency tire puncture repair kit.... 319
If you have a flat tire ......................... 313, 319
Inflation pressure ........................................ 279
Information ..................................................... 351
Replacing ........................................................ 313
Rotating tires ................................................ 275
Size .................................................................... 347
Snow tires ......................................................204
Spare tire ......................................................... 313
Tire inflation pressure display function.......................................................................... 275
Tire pressure warning light ...................307
Tire pressure warning system ............. 275
Tools........................................................ 314, 320
Top tether strap........................................ 43, 51
Toruqe Vectoring Differential (TVD) .. 198
Total load capacity ...................................... 342
Towing Dinghy towing ............................................... 127
Emergency towing.................................... 297
Towing eyelet...............................................299
Trailer towing ................................................. 127
TRAC (Traction Control) ........................200
Traction Control (TRAC) ........................200
Trailer towing .................................................. 127
Transmission Automatic transmission ............................132
Driving mode select switch ....................192
M mode ........................................................... 135
Paddle shift switches ....................... 134, 135
Trip meters .........................................................72
Trunk .................................................................... 95 Smart access system with push-button start ...................................................................96
Trunk features .............................................. 227
Trunk grip ......................................................... 97
Trunk light ......................................................... 97
Trunk opener main switch........................98
Trunk opener switch ................................... 96