2021 LEXUS LX570 immobilizer

TABLE OF CONTENTS2
LX570_OM_OM60T33U_(U)
For your information................................... 8
Reading this manual................................... 12
How to search ..............................................13
Pictorial index............................................... 14
1-1. For safe useBefore driving ................................ 26
For safe driving .............................. 28
Seat belts .......................................... 30
SRS airbags ..................................... 38
Front passenger occupant classification system ................. 49
Exhaust gas precautions............ 55
1-2. Child safety Riding with children ..................... 56
Child restraint systems ............... 57
1-3. Lexus Enform LEXUS Enform Safety Connect..........................................74
1-4. Theft deterrent system Engine immobilizer system.......80
Alarm ................................................. 82 2. Instrument cluster
Warning lights and indicators....................................... 86
Gauges and meters ..................... 92
Multi-information display .......... 96
Head-up display .......................... 105
Fuel consumption information ................................... 110
1For safety and security
2Instrument cluster

25
LX570_OM_OM60T33U_(U)
For safety and security1
1-1. For safe useBefore driving................................. 26
For safe driving .............................. 28
Seat belts .......................................... 30
SRS airbags .....................................38
Front passenger occupant classification system.................. 49
Exhaust gas precautions ............ 55
1-2. Child safety Riding with children ..................... 56
Child restraint systems ............... 57
1-3. Lexus Enform LEXUS Enform Safety Connect ......................................... 74
1-4. Theft deterrent system Engine immobilizer system .......80
Alarm ................................................. 82

801-4. Theft deterrent system
LX570_OM_OM60T33U_(U)
Engine immobilizer system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled.
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the key is in contact with a metallic object
●If the key is in close proximity to or touchi ng a key to the security system (key with a
built-in transponder ch ip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the engine
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 prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

811-4. Theft deterrent system
LX570_OM_OM60T33U_(U)
1
For safety and security
■Certifications for the en gine immobilizer system
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
For vehicles sold in Canada
WARNING
■Certifications for the en gine immobilizer system
Changes or modifications not expressly appr oved by the party responsible for compli-
ance could void the user’s authority to operate the equipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.

140
LX570_OM_OM60T33U_(U)3-2. Opening, closing and locking the doors
■Battery-saving function
The battery-saving function w
ill be activated in order to prevent the electronic key bat-
tery and the battery from being discharged while the vehicle is not in operation for a long
time.
●In the following situations, the smart acce ss system with push-button start may take
some time to unlock the doors.
• The electronic key has been le ft in an area of approximately 6 ft. (2 m) of the outside
of the vehicle for 10 minutes or longer.
• The smart access system with push-button st art has not been used for 5 days or lon-
ger.
●If the smart access system with push-button start has not been used for 14 days or lon-
ger, the doors cannot be unlocked at any doors except the driver’s door. In this case,
take hold of the driver’s d oor handle, or use the wireless remote control or the mechan-
ical key, to unlock the doors.
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from re ceiving radio waves.
The smart access system with push-button st art uses weak radio waves. In the following
situations, the communication between the electronic key and the vehicle may be
affected, preventing the smar t access system with push-but ton start, wireless remote
control and engine immobilizer system from operating properly.
(Ways of coping: P. 550)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas st ation, radio station, large display, airport or
other facility that generates strong radio wave s or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Portable radio, cellular phone, cordle ss phone or other wireless communication
device
• 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 keys (that emit radio waves) are being used nearby
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the smart
access system with push -button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

LX570_OM_OM60T33U_(U)
2134-2. Driving procedures
4
Driving
If the engine is stopped with the shift lever in a position other than P, the engine
switch will not be turned off but instead be turned to ACCESSORY mode. Per-
form the following procedure to turn the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is disp layed on the multi-information display
and then press the engine switch once.
Check that “Turn Off Vehicle” on th e multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON
mode (the engine is not running) for more than an hour with the shift lever in P, the engine
switch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI-
TION ON mode for long periods of ti me when the engine is not running.
■Operation of the engine switch
●If the switch is not pressed shortly and firmly, the engine switch mode may not change
or the engine may not start.
●If attempting to restart the engine immediately after turning the engine switch off, the
engine may not start in some cases. After turning the engine off, please wait a few sec-
onds before restarting the engine.
■Electronic key battery depletion
P. 118
■Conditions affe cting operation
 P. 140
■Note for the entry function
P. 141
■If the engine does not start
●The engine immobilizer system ma y not have been deactivated. (P. 80)
Contact your Lexus dealer.
●Check that the shift lever is se curely set in P. The engine may not start if the shift lever is
displaced out of P.
A message will be displayed on the multi-information display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel
will be locked due to the steering lock func tion. Operating the engine switch again auto-
matically cancels the steering lock.
When stopping the engine with the shift lever in a position other than P
1
2
3
4

548
LX570_OM_OM60T33U_(U)7-2. Steps to take in an emergency
If the engine will not start
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again follo
wing correct starting procedures.
( P. 211)
●There may be a malfunction in th e engine immobilizer system. (P. 80)
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 553)
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfun ctioning due to an electrical problem
such as an open circuit or a blown fuse. However, an interim measure is available
to start the engine. ( P. 549)
If the engine will not start even though correct starting procedures are being
followed ( P. 211), consider each of the following points:
The engine will not start even when the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over.

622Alphabetical index
LX570_OM_OM60T33U_(U)
EngineAccessory mode.................................. 212
Air cleaner .............................................475
Compartment...................................... 477
Engine switch .......................................... 211
Exhaust gas precautions ...................55
Hood ........................................................ 476
How to start the engine ..................... 211
Identification number ...................... 563
If the engine will not start............... 548
If your vehicle has to be stopped in an emergency ........... 515
Ignition switch (engine switch) ..................................................... 211
Overheating ........................................ 556
Engine compartment cover ............. 478
Engine coolant....................................... 482 Capacity ................................................ 566
Checking................................................482
Preparing and checking before winter ................................... 390
Engine coolant temperature gauge ........................................................ 92
Engine immobilizer system ................. 80
Engine oil ................................................. 479 Capacity ................................................ 564
Checking................................................ 479
Preparing and checking before winter ................................... 390 Engine switch (ignition switch) ...........211
Engine switch light
(ignition switch light)........................ 425
Event data recorder (EDR)................... 10
Exhaust gas precautions ...................... 55
First-aid kit holder ................................ 436
Flat tire ...................................................... 536
Floor mats....................................................26
Fluid Automatic transmission .................. 567
Brake....................................................... 568
Steering ................................................. 568
Washer ...................................................489
Fog lights...................................................236 Replacing light bulbs ......................... 512
Switch ...................................................... 236
Footwell lights .........................................425
Four-wheel AHC (Active Height Control Suspension) ....................... 302 Easy access mode ............................304
Disabling the height control .........305
Selecting vehicle height.................. 302
Four-wheel drive system Center differential lock/unlock ...........................................311
Four-wheel drive control switch .................................................... 310
Warning light ....................................... 526
Front automatic air conditioning system .....................................................407
Front doors .................................................121
F
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.