2020 Lexus ES300h immobilizer

2TABLE OF CONTENTS
For your information ......................................6
Reading this manual .................................... 10
How to search ................................................. 11
Pictorial index ................................................. 12
1-1. For safe use Before driving .................................... 22
For safe driving.................................. 23
Seat belts ............................................. 24
SRS airbags ....................................... 28
Front passenger occupant classifi- cation system ................................. 37
Exhaust gas precautions ................ 41
1-2. Child safety Riding with children......................... 42
Child restraint systems .................. 42
1-3. Lexus Enform Lexus Enform Safety Connect .. 54
1-4. Hybrid system Hybrid system features ................... 61
Hybrid system precautions ......... 64
1-5. Theft deterrent system Immobilizer sy stem ........................ 68
Alarm.................................................... 70
2-1. Instrument cluster Warning lights and indicators ..... 74
Gauges and meters ....................... 78
Multi-information display.............. 81
Head-up display .............................. 86
Energy monitor/consumption screen ............................................... 903-1. Key information
Keys ...................................................... 98
3-2. Opening, closing and locking the doors and trunk
Doors .................................................. 101
Trunk .................................................. 105
Smart access system with push-but- ton start ............................................ 112
3-3. Adjusting the seats Front seats.......................................... 119
Driving position memory ........... 120
Head restraints ............................... 123
3-4. Adjusting the steering wheel and mirrors
Steering wheel ................................ 125
Inside rear view mirror ................ 126
Outside rear view mirrors.......... 127
3-5. Opening and closing the windows and moon roof
Power windows ............................. 130
Moon roof ......................................... 132
4-1. Before driving Driving the vehicle........................ 136
Cargo and luggage........................ 141
Vehicle load limits.......................... 143
Trailer towing................................... 144
Dinghy towing ................................. 144
4-2. Driving procedures Power (ignition) switch ............... 145
EV drive mode ............................... 150
1For safety and security
2Vehicle status information and
indicators
3Before driving
4Driving

21
1
1
For safety and security
For safety and security
1-1. For safe useBefore driving ................................. 22
For safe driving.............................. 23
Seat belts .......................................... 24
SRS airbags .................................... 28
Front passenger occupant classifi- cation system .............................. 37
Exhaust gas precautions ............. 41
1-2. Child safety Riding with children...................... 42
Child restraint systems ............... 42
1-3. Lexus Enform Lexus Enform Safety Connect 54
1-4. Hybrid system Hybrid system features ............... 61
Hybrid system precautions ...... 64
1-5. Theft deterrent system Immobilizer sy stem ..................... 68
Alarm................................................. 70

681-5. Theft deterrent system
1-5.Theft deterrent system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to ACCESSORY or ON mode to indi-
cate that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free type
immobilizer system.
■Conditions that may cause the system to
malfunction
●If the grip portion of the key is in contact
with a metallic object
●If the key is in close proximity to or touch-
ing a key registered to the security sys-
tem (key with a built-in transponder chip)
of another vehicle
■Certifications for the immobilizer system
For vehicles sold in the U.S.A. , Hawaii, Guam and Puerto Rico
Immobilizer system
The vehicle’s keys have built-in tran-
sponder chips that prevent the
hybrid system from starting if a key
has not been previously registered
in the vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all
vehicle thefts.
Operating the system

1143-2. Opening, closing and locking the doors and trunk
■Conditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the following
situations, the communication between the
electronic key and the vehicle may be
affected, preventing the smart access sys-
tem with push-button start, wireless remote
control and immobilizer system from oper-
ating properly.
(Ways of coping: P.388)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other faci lity that generates
strong radio waves or electrical noise
●When the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil
inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless ke ys (that emit radio
waves) are being used nearby
●When carrying the electronic key
together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless
phone or other wireless communication
device
• Another electronic ke y or a wireless key
that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the rear
window
●When the electronic key is placed near a
battery charger or electronic devices
●When the vehicle is parked in a pay park-
ing spot where radio waves are emitted.
■Notes for the entry function
●Even when the electronic key is within the effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win-
dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the center
of the rear bumper when the trunk is
opened.
• The electronic key is on the instrument panel, rear package tray or floor, or in the
door pockets or glove box when the
hybrid system is started or power switch
modes are changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only
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 po ssible to start the
hybrid system if the el ectronic key is near
the window.
●The doors may unlock or lock if a large
amount of water splashes 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 doors 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 sensor while
wearing gloves may delay or prevent lock
operation. Remove the gloves and touch
the lock sensor again.

1454-2. Driving procedures
4
Driving
4-2.Driving procedures
1Press the parking brake switch to
check that the parking brake is set.
(P.157)
Parking brake indicator will come on.
2 Check that the shift lever is in P.
3 Firmly depress the brake pedal.
and a message will be displayed on
the multi-information display.
If it is not displayed, the hybrid system can-
not be started.
4 Press the power switch shortly and
firmly.
When operating the power switch, one
short, firm press is enough. It is not neces-
sary to press and hold the switch.
If the “READY” indicator turns on, the
hybrid system will operate normally.
Continue depressing the brake pedal until
the “READY” indicator is illuminated.
The hybrid system can be started from any
power switch mode.
5Check that the “READY” indicator
is illuminated.
The vehicle will not move when the
“READY” indicator is off.
■Power switch illumination
According to the situation, the power
switch illumination operates as follows.
●When a door is opened, or the power
switch mode is changed from ACCES-
SORY or ON mode to off, the power
switch illumination slowly blinks.
●When depressing the brake pedal with
carrying the electronic key on your per-
son, the power switch illumination rapidly
blinks.
●When the power switch is in ACCES-
SORY or ON mode, the power switch
illumination illuminates.
■If the hybrid system does not start
●The immobilizer system may not have
been deactivated. ( P.68)
Contact your Lexus dealer.
●If a message related to start-up is shown
on the multi-information display, read the
message and follow the instructions.
■Sounds and vibrations specific to a
hybrid vehicle
 P.62
■If the 12-volt batte ry is discharged
The hybrid system cannot be started using
the smart access syst em with push-button
start. Refer to P.390 to restart the hybrid
system.
■Electronic key battery depletion
 P.98
■Conditions affecting operation
 P.114
■Notes for the entry function
 P.114
■Steering lock function
●After turning the power switch off and
opening and closing the doors, the steer-
ing wheel will be lock ed due to the steer-
Power (ignition) switch
Performing the following opera-
tions when carrying the electronic
key on your person starts the hybrid
system or changes power switch
modes.
Starting the hybrid system

3857-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.389)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.172)
 There may be a malfunction in the
immobilizer system. ( P.68)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
One of the following may be the cause
WARNING
■Speed limit when using the compact
spare tire
Do not drive at speeds in excess of 50
mph (80 km/h) when a compact spare
tire is installed on the vehicle.
The compact spare tire is not designed
for driving at high speeds. Failure to
observe this precaution may lead to an
accident causing deat h or serious injury.
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
■Be careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
■Driving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle body
and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
If the hybrid system will not
s
tart
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
(  P.145)
The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

Alphabetical index451
Light switch ...................................................... 161
Replacing light bulbs..................................351
Headlights aim .............................................. 350
Head restraints ...............................................123
Head-up display.............................................. 86 Driving information display area........... 86
Driving support system display area ..88
HUD (Head-up display) switch............ 87
Hybrid System Indicator ........................... 89
Navigation system-linked display ........ 86
Pop-up display...............................................88
Settings .............................................................. 87
Heated steering wheel .............................. 273
Heaters Air conditioning system.......................... 265
Heated steering wheel............................ 273
Outside rear view mirrors .................... 266
Seat heaters .................................................. 273
High mounted stoplight Replacing light bulbs..................................351
High-voltage components ......................... 64
Hill-start assist control ............................... 248
Hood ...................................................................319
Open .................................................................319
Hooks Cargo hooks................................................ 283
Coat hooks ................................................... 295
Grocery bag hooks ................................. 283
Retaining hooks (floor mat)......................22
Horn .................................................................... 126
HUD (Head-up display) switch................ 87
Hybrid battery (traction battery) Location............................................................. 64
Specification ................................................. 402
Warning message........................................ 67
Hybrid battery (traction battery) air vents ............................................................................. 66
Hybrid system .................................................... 61 Emergency shut off system ..................... 67
Energy monitor/consumption screen90
EV drive mode ............................................ 150
High voltage components ....................... 64 Hybrid system precautions...................... 64
Hybrid vehicle driving tips .................... 252
If the hybrid system will not start ....... 385
Overheating ................................................ 396
Power (ignition) switch ............................ 145
Regenerative braking ................................. 62
Starting the hybrid system ...................... 145
Vehicle proximity noti
fication system. 63
Hybrid System Indicator...................... 79, 89
Hybrid transmission......................................152 Paddle shift switches .......................154, 155
S mode ............................................................. 155
I
I/M test ..............................................................316
IdentificationEngine............................................................... 401
Vehicle ........................................................... 400
Ignition switch (power switch) .................145 Auto power off function........................... 148
Changing the power switch modes . 148
If your vehicle has to be stopped in an emergency ................................................ 356
Starting the hybrid system ...................... 145
Immobilizer system........................................ 68
Indicators ........................................................... 75
Initialization Items to initialize ......................................... 429
Maintenance.......................................312, 323
Power windows ........................................... 130
Tire pressure warning system .............334
Inside rear view mirror ................................126
Instrument panel light control ................... 80
Interior lights...................................................277
Intuitive parking assist........................215, 216 Function ............................................................216
Warning message ...................................... 218
J
JackPositioning a floor jack ............................. 319

Alphabetical index457
Replacing light bulbs..................................351
Theft deterrent system Alarm .................................................................. 70
Immobilizer system...................................... 68
Tire inflation pressure ................................ 338 Maintenance data......................................405
Tire inflation pressu re display function331
Warning light ...............................................368
Tire information ............................................ 409 Glossary........................................................... 413
Size........................................................................411
Tire identification number .........................411
Uniform Tire Quality Grading.............. 412
Tire pressure warning system ..................331 Function ............................................................331
Initializing ....................................................... 334
Installing tire pressure warning valves and transmitters ...................................... 333
Registering ID codes ............................... 336
Warning light ...............................................368
Tires................................................................... 329 Chains ............................................................. 255
Checking ....................................................... 329
If you have a flat tire .................................. 378
Inflation pressure........................................338
Information ....................................................409
Replacing ....................................................... 378
Rotating tires ..................................................331
Size....................................................................405
Snow tires ...................................................... 254
Spare tire........................................... 378, 405
Tire inflation pressu re display function331
Tire pressure warning system ...............331
Warning light ...............................................368
Tools.................................................................. 379
Top tether strap.................................................51
Total load capacity ......................................400
Towing Dinghy towing ............................................... 144
Emergency towing ...................................359
Towing eyelet ................................................361
Trailer towing ................................................. 144 TRAC (Traction Control) ........................ 248
Traction battery (hybrid battery) ............. 64
Hybrid battery (traction battery) air vents............................................................................. 66
Location ............................................................. 64
Specification .................................................402
Warning message ........................................ 67
Traction Control (TRAC) ........................ 248
Traction motor (electric motor) ................. 61
Trailer towing ..................................................144
Transmission Driving Mode Select switch ...................213
Hybrid transmission................................... 152
Paddle shift switches .......................154, 155
S mode ............................................................. 155
Trip meters ........................................................ 80
Trunk .................................................................. 105 Hands Free Power Trunk Lid............... 108
Internal trunk release lever..................... 109
Power trunk lid ............................................. 105
Smart access system with push-button start ................................................................. 107
Trunk closer switch ....................................108
Trunk easy closer........................................ 109
Trunk features ..............................................283
Trunk grip ....................................................... 109
Trunk light ....................................................... 109
Trunk opener main switch.......................... 111
Trunk opener switch ................................. 107
Trunk storage extension......................... 294
Wireless remote control ......................... 107
Trunk light ........................................................ 109
Turn signal lights ............................................156 Replacing light bulbs ..................... 351, 352
Turn signal lever .......................................... 156
U
USB charging ports.................................... 285
V
Vanity lights.................................................... 284