2020 Lexus ES350 alarm

1063-2. Opening, closing and locking the doors and trunk
■Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk
■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 oper-
ated.)
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.
■If an alarm sounds or a warning message
is displayed
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.
When only an alarm sounds, circumstances
and correction procedures are as follows.
●When an exterior alarm sounds once for
5 seconds
Smart access system with
push-button start
The following operations can be
performed simply by carrying the
electronic key on your person, for
example in your pocket. The driver
should always carry the electronic
key.
 Locks and unlocks the doors
( P.95)
 Opens the trunk ( P.101)
 Starts the engine ( P.143)
A
B
C
D
A
B
C

1073-2. Opening, closing and locking the doors and trunk
3
Before driving
●When an interior alarm sounds continu-
ously
■If “Key Detected in Vehicle” is shown on
the multi-information display
An attempt was made to lock the doors
using the smart access system with push-
button start while the electronic key was still
inside the vehicle. Retrieve the electronic
key from the vehicle and lock the doors
again.
■Battery-saving function
The battery-saving fu nction will be acti- vated in order to prevent the electronic key
battery and the battery from being dis-
charged while the vehicle is not in operation
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 cann ot be unlocked at
any doors except the driver’s door. In this
case, take hold of th e driver’s door han-
dle, or use the wireless remote control or
mechanical key, to unlock the doors.
■Turning an electronic key to battery-
saving mode
●When battery-saving mode is set, battery
depletion is minimized by stopping the
electronic key from receiving radio
waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button
start cannot be used. To cancel the func-
tion, press any of the electronic key but-
tons.
●Electronic keys that will not be used for
long periods of time can be set to the bat-
tery-saving mode in advance.
■Conditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the following
SituationCorrection proce- dure
The trunk was
closed while the
electronic key was
still inside the trunk
and all the doors
were locked.
Retrieve the elec-
tronic key from the
trunk and close the
trunk lid.
An attempt was
made to lock the
vehicle while a door
was open.Close all of the
doors and lock the
doors again.
SituationCorrection proce-dure
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.

1093-2. Opening, closing and locking the doors and trunk
3
Before driving
times. After this, no recognition signals
will be given.
●Unlocking the vehicle may take more
time if another electronic key is within the
effective range.
●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.107)
●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 all the 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 approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
■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 syst em with push-but-
ton start can be deactivated in advance.
●Battery-saving mode can reduce the
power consumption of electronic keys.
(  P.107)
■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 elec
tronic 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 prevention function may not oper-
ate.)
●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, the
inside edge of the trunk), conditions
(inside a metal bag, close to metallic
objects) and the radio waves in the sur-
rounding area. ( P.103)
■If an electronic key does not work prop-
erly
●Locking and unloc king the doors and
opening the trunk: P.378
●Starting the engine: P.379
■Customization
Settings (e. g. smart access system with
push-button start) can be changed.
(Customizable features: P.406)
If the smart access system with push-button
start has been deactivated in a customized
setting, refer to the explanations for the fol-
lowing operations.
●Locking and unloc king the doors and
opening the trunk:
Use the wireless remote control or
mechanical key. ( P.95, 101, 378)
●Starting the engine and changing engine
switch modes:  P.379
●Stopping the engine: P.145

3807-2. Steps to take in an emergency
engine switch in step 3 above.
The engine does not start and modes will be
changed each time the switch is pressed.
(  P.146)
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 using the following procedure.
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.63)
2 Open the hood. ( P.314)
3 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cable to on the second vehicle.
If the battery is discharged
The following procedures may be
used to start the engine if the bat-
tery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the engine
A
B

433What to do if... (Troubleshooting)
In this case, the engine can be started in a
temporary way. ( P.379)
Is the battery discharged?
( P.380)
 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.149)
 It is locked automatically to prevent
theft of the vehicle. ( P.144)
 Is the window lock switch pressed?
The power window at the except for the
one at the driver’s seat cannot be operated
if the window lock switch is pressed.
( P.125)
 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.146) 
The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.357, 357)
 The parking brake indicator is on
Is the parking brake released? ( P.152)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.354, 364)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.62)
To stop the alarm, turn the engine
switch to 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.364)
 When a warning light turns on or a
warning message is displayed, refer
to P.354, 364.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
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

435Alphabetical index
Alphabetical index
A
A/C ..................................................................... 261Air conditioning filter ............................... 335
Automatic air conditioning system ..... 261
ABS (Anti-lock Brake System).............. 245 Function .......................................................... 245
Warning light ...............................................356
ACA (Active Cornering Assist) ........... 245
Active Cornering Assist (ACA) ........... 245
Adaptive Front-lighting System (AFS) 158
Adaptive Variable Suspension System245
AFS (Adaptive Front-lighting System) 158
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................355
Air conditioning filter ................................. 335
Air conditioning system .............................. 261 Air conditioning filter ............................... 335
Automatic air conditioning system ..... 261
Alarm ................................................................... 62 Alarm .................................................................. 62
Warning buzzer ......................................... 354
Anchor brackets ...................................... 43, 51 Antennas (smart access
system with push-
button start) ................................................. 106
Anti-lock Brake System (ABS).............. 245 Function ..........................................................245
Warning light .............................................. 356
Approach warning........................................199
Armrest............................................................288
Assist grips .....................................................288
Audio system-linked display ........................81
Automatic headlight leveling system .... 157
Automatic High Beam ................................159
Automatic light control system................156
Automatic transmission .............................. 147 Paddle shift switches ...................... 150, 150
S mode ............................................................. 150
Auxiliary box...................................................277
Average fuel economy..................................79
Average vehicle speed .................................79
B
Back-up lights Replacing light bulbs ..................................341
Battery Checking .......................................................320
If the battery is discharged ................... 380
Preparing and checking before winter.......................................................................... 249
Warning light .............................................. 355
Blind Spot Monitor (BSM)....................... 203
Boost gauge...................................................... 80
Brake Brake hold ...................................................... 154
Fluid...................................................................392
Parking brake ............................................... 152
Warning light ...............................................354
Brake assist .................................................... 245
Break-in tips.....................................................135
Brightness control Instrument panel light control......... 72, 76
BSM (Blind Spot Monitor)....................... 203

444Alphabetical index
Steering lock system warning message........................................................................... 144
Steering wheel ................................................. 119 Adjustment....................................................... 119
Heated steering wheel............................268
Meter control switches .............................. 78
Power easy access system .......................114
Steering wheel position memory ..........114
Stop lights Replacing light bulbs.................................. 341
Storage feature ............................................ 275
Stuck If the vehicle becomes stuck............... 385
Suggestion function....................................... 83
Sunshade Roof .......................................................... 127, 129
Sun visors ........................................................ 279
Switches “ODO TRIP”switch ...............................71, 76
“SOS” button .................................................. 54
Automatic High Beam system............. 159
Brake Hold switch ......................................154
BSM (Blind Spot Monitor) switch .... 203
Door lock switches ...................................... 97
Driving Mode Select switch .................209
Driving position memory switches .......114
Dynamic radar cruise control with full-speed range switch .................................194
Electronic roof sunshade switches ..... 129
Emergency flashers switch ................... 346
Engine switch................................................. 143
Garage door opener sw itches ............ 291
Heated steering wheel switch.............268
HUD (Head-up display) switch............85
Ignition switch................................................143
Instrument panel light control switches .................................................................... 72, 76
Intuitive parking assist switch................. 213
Light switches ............................................... 156
LTA (Lane Tracing Assist) switch.......187
Meter control switches .............................. 78
Moon roof switches ................................... 126 Outside rear view mirr
or switches ...... 121
Paddle shift switches ...................... 150, 150
Panoramic moon roof switches ...........129
Parking brake switch................................. 152
PCS OFF switch .......................................... 177
PKSB (Parking Support Brake) switch .......................................................................... 227
Power door lock switch ............................ 97
Power window switches ..........................124
RCD (Rear Camera Detection) switch .......................................................................... 223
RCTA switch ..................................................219
Rear sunshades switch........................... 288
Rear window and outside rear view mir- ror defoggers switch ..............................261
Seat heater switches................................ 268
Seat ventilator switches ......................... 268
Tilt and telescopic steering control switch ............................................................................. 119
Tire pressure warning reset switch...328
Trunk closer switch .................................... 102
Trunk opener main switch...................... 105
Trunk opener switch ................................... 101
Vehicle-to-vehicle distance switch.... 194
VSC OFF switch ....................................... 246
Window lock switch.................................. 125
Windshield wiper and washer switch 161
Windshield wiper de-icer switch.......265
T
Tachometer............................................... 70, 73 Rev indicator ................................................... 75
Rev peak............................................................ 75
Tail lights............................................................156 Light switch .................................................... 156
Replacing light bulbs ..................................341
Theft deterrent system Alarm................................................................... 62
Engine immobilizer system......................60
Tire inflation pressure ..................................331 Maintenance data ......................................393