2021 LEXUS RCF remote start

3367-2. Steps to take in an emergency
Once the engine starts, have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
■Starting the engine when the battery is
discharged
The engine cannot be started by push-start-
ing.
■To prevent battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is off.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■Charging the battery
The electricity stored in the battery will dis-
charge gradually even when the vehicle is
not in use, due to natural discharge and the
draining effects of certain electrical appli-
ances. If the vehicle is left for a long time,
the battery may discharge, and the engine
may be unable to start. (The battery
recharges automatically during driving.)
■When recharging or replacing the bat-
tery
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
battery is discharged. Use the wireless
remote control or the mechanical key to
lock or unlock the doors.
●The engine may not start on the first
attempt after the battery has recharged
but will start normally after the second
attempt. This is not a malfunction.
●The engine switch mode is memorized by
the vehicle. When the battery is recon-
nected, the system will return to the
mode it was in before the battery was dis-
charged. Before di sconnecting the bat-
tery, turn the engine switch off.
If you are unsure what mode the engine
switch was in befo re the battery dis-
charged, be especially careful when
reconnecting the battery.
■When replacing the battery
●Use a battery that conforms to European
regulations.
●Use a battery that tha case size is same as
the previous one (LN3), 20 hour rate
capacity (20HR) is equivalent (70Ah) or
greater, and performance rating (CCA)
is equivalent (592A) or greater.
• If the sizes differ, the battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, battery may dis-
charge and the engine may not be able to
start.
●For details, consult your Lexus dealer.
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the bat-
tery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentionally in contact with
any other than the intended terminal.
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal to come into contact with any
other parts or meta l surfaces in the
area, such as brackets or unpainted
metal.
●Do not allow the + and - clamps of the
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
battery.
■Battery precautions
The battery contains poisonous and cor-
rosive acidic electrol yte, while related
parts contain lead and lead compounds.
Observe the following precautions when
handling the battery:

3638-2. Customization
8
Vehicle specifications
■Smart access system with push-button start and wireless remote control
( P.92, 95)
■Smart access system with push-button start ( P.92, 95, 98)
■Wireless remote control ( P.88, 92, 95)
FunctionDefault settingCustomized setting
Operation buzzer volume5OffO—O1 to 7
Operation signal (Emer-
gency flashers)OnOffO—O
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being unlocked
60 seconds
Off
O—O30 seconds
120 seconds
Open door warning buzzerOnOff——O
Welcome light illumination
controlOnOffO—O
ABC
FunctionDefault settingCustomized setting
Smart access system with
push-button startOnOff——O
Smart door unlockingDriver’s doorBoth side doorsO—O
Number of consecutive door
lock operations2 timesAs many as desired——O
ABC
FunctionDefault settingCustomized setting
Wireless remote controlOnOff——O
Unlocking operation
Driver’s door
unlocked in one
step, both side doors unlocked in two steps
Both side doors
unlocked in one stepO—O
ABC

3688-2. Customization
■Seat belt reminder (P.306)
■Vehicle customization
●When the smart access system with
push-button start is off, the entry unlock
function cannot be customized.
●When the doors remain closed after
unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in
accordance with the operation buzzer
volume and operational signal (Emer-
gency flashers) function settings.
●Some settings can be changed using a
switch or the Center Di splay. If a setting is
changed using a switch, the changed set-
ting will not be reflected on the Center
Display screen until the engine switch is
turned off and then to IGNITION ON
mode.
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with the
electronic key on your person
OnOff——O
Remote Touch pad lightOnOff——O
Time elapsed before the outer
foot lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the outer foot
lights when you approach the
vehicle with the electronic
key on your person
OnOff——O
Operation of the outer foot
lights when the doors are
unlocked with the power
door lock switch
OnOff——O
Operation of the outer foot
lights when a door is openedOnOff——O
Fading out of the outer foot
lights when they turn offLongShort——O
FunctionDefault settingCustomized settingABC
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff——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

394Alphabetical Index
Seat belts........................................................ 245
Wheels and wheel ornaments.............. 241
Cargo capacity............................................... 126
Cargo hooks ..................................................227
Center Display ...............................................210
Chains .............................................................. 205
Child restraint system Fixed with a LATCH system .................. 49
Fixed with a seat belt................................... 46
Front passenger occupant classification system ............................................................. 36
Installing a CRS to the front passenger seat ................................................................... 44
Points to remember .....................................42
Riding with children ......................................42
Types of child restraint system installation method ........................................................... 43
Using an anchor bracket ............................ 51
Child safety Airbag precautions.......................................32
Battery precautions ...................... 272, 336
Child restraint system................................. 43
Heated steering wheel or seat heater precautions.................................................. 221
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................. 116
Power window lock switch...................... 113
Seat belt extender precautions ............. 25
Seat belt precautions ...................................42
Trunk precautions ........................................ 95
Cleaning Exterior ...................................240, 248, 252
Interior ............................................................. 245
Radar sensor..................................................153
Seat belts........................................................ 245
Wheels and wheel ornaments.............. 241
Clock ................................................................ 230
Clock settings ............................................... 230
Coat hooks..................................................... 229
Compass ......................................................... 236
Condenser ..................................................... 270 Console box ...................................................227
Consumption screen .................................... 83
Cooling system............................................. 269
Engine overheating................................... 337
Cruise control Dynamic radar cruise control................. 171
Cup holders Front cup holders ...................................... 226
Rear cup holders........................................ 226
Current fuel consumption .......................... 75
Curtain shield airbags .................................. 28
Customizable features .............................. 360
D
Daytime running light system .................. 138
Daytime running lights Replacing light bulbs ............................... 289
Defogger Outside rear view mirrors....................... 217
Rear window .................................................. 217
Windshield ...................................................... 217
Differential Differential oil ....... ................................. .......346
Dimension ...................................................... 342
Dinghy towing................................................. 127
Display Center Display ............................................. 210
Drive information .......................................... 75
LDA (Lane Departure Alert with steering control) ......................................................... 166
Multi-information display .......................... 73
Warning message ...................................... 310
Do-it-yourself maintenance .................... 258
Door courtesy lights ................................... 223
Door lock Doors .................................................................. 92
Smart access system with push-button start ...................................................................98
Wireless remote control ...........................90
Doors Automatic door lock ing and unlocking
system.............................................................. 94

397Alphabetical Index
Heated steering wheel ................................ 221
HeatersAutomatic air conditioning system ..... 213
Heated steering wheel.............................. 221
Outside rear view mirrors ...................... 217
Rear window .................................................. 217
Seat heaters .................................................... 221
High mounted stoplight Replacing light bulbs................................289
Hill-start assist control ...............................200
Hood Open ............................................................... 264
Hooks Cargo hooks.................................................227
Coat hooks ................................................... 229
Retaining hooks (floor mat)......................22
Horn ................................................................... 109
I
I/M test .............................................................. 261
Identification Engine ............................................................. 343
Vehicle ............................................................ 342
Ignition switch (engine switch).................128 Auto power off function ............................ 131
Changing the engine switch modes. 130
If your vehicle has to be stopped in an
emergency ................................................ 294
Illuminated entry system ........................... 224
Indicators ........................................................... 63
Initialization Items to initialize .........................................369
Maintenance ................................................ 257
Power windows..............................................112
Tire pressure warning system ..............277
Inside rear view mirror ............................... 109
Instrument panel light control ....................73
Interior lights.................................................. 223 Front interior light ...................................... 223
Rear interior light ....................................... 223
Intuitive parking assist Function ............................................................187 Warning message ...................................... 189
J
Jack
Positioning a floor jack ............................265
Vehicle-equipped jack ................ 314, 320
Jack handle .......................................... 314, 320
Jam protection function Moon roof ........................................................ 115
Power windows ............................................. 112
K
Keyless entrySmart access system with push-button start ...................................................................98
Wireless remote control ...........................90
Keys Battery-saving function..............................99
Electronic key ................................................ 88
Engine switch ................................................ 128
If the electronic key does not operate properly ....................................................... 332
If you lose your keys .................................. 331
Key number plate ........................................ 88
Keyless entry ..........................................92, 98
Mechanical key ............................................. 88
Replacing the battery ...............................283
Warning buzzer ............................................ 99
Wireless remote control ...........................90
Knee airbags .................................................... 28
L
Lane Departure Alert LDA indicator ............................................. 305
Lane Departure Alert with steering control (LDA)Operation ....................................................... 164
Warning message ...................................... 169
Language (multi-information display) .....81
LATCH anchors ............................................. 49

403Alphabetical Index
Trunk storage extension ........................ 228
Wireless remote control........................... 97
Turn signal lights Replacing light bulbs................................289
Turn signal lever ...........................................136
TVD (Toruqe Vectorin g Differential) .. 198
V
Vanity lights.................................................... 230
Vanity mirrors ............................................... 230
VDIM (Vehicle Dynami cs Integrated Man-
agement)......................................................200
Vehicle data recording . ...................................6
Vehicle Dynamics Integrated Manage- ment (VDIM)..............................................200
Vehicle identification number ................ 342
Vehicle Stability Control (VSC) .............199
Vehicle sway warning display ....................76
Ventilators (seat ventilators)..................... 221
VSC (Vehicle Stabilit y Control) .............199
W
Warning buzzer
Open door....................................................306
Warning buzzers Approach warning...................................... 176
Brake Override System .........................304
Downshifting ..................................................135
Driver’s and front passenger’s seat belt.........................................................................306
Drive-Start Control ..................................304
Electric power steering ..........................304
High coolant temperature .................... 302
LDA (Lane Departure Alert with steering control) ..........................................................164
Low engine oil pressure.........................303
Open door.............................................. 93, 94
Open window ................................................ 113
Parking brake ..............................................304
Pre-collision braking................................. 158
Rear passengers’ seat belt .................... 307 Warning lights............................................... 302
ABS .................................................................. 303
Automatic headlight leveling system306
Brake Override System ........................ 304
Brake system................................................302
Charging system........................................302
Driver’s and front passenger’s seat belt reminder light .......................................... 306
Drive-Start Control.................................. 304
Electric power steering.......................... 304
High coolant temperature.....................302
LDA indicator ............................................. 305
Low engine oil pressure........................ 303
Low fuel level .............................................. 306
Malfunction indicator lamp .................. 303
Master warning light.................................307
Open door warning ................................ 306
Parking brake indicator ......................... 304
Pre-collision system................................. 305
Rear passengers’ seat belt reminder lights ..............................................................307
Slip indicator ................................................ 305
SRS ................................................................... 303
Tire pressure ................................................307
Warning message ........................................ 310
Warning message display.............................81
Washer Checking ....................................................... 272
Preparing and checking before winter..........................................................................204
Switch.................................................................143
Washing and waxing.................................. 240
Weight Cargo capacity .............................................126
Load limits .......................................................126
Weight............................................................. 342
Wheels ...............................................................281 Size .................................................................... 347
Window lock switch ...................................... 113
Windows Power windows ............................................. 112
Rear window defogger............................. 217