2020 Lexus IS300 immobilizer

TABLE OF CONTENTS2
IS350 AWD/IS350/IS300 AWD/IS300_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 ..................................... 36
Front passenger occupant classification system ................. 46
Safety information for children ................................... 52
Child restraint systems ............... 53
Installing child restraints............. 57
Exhaust gas precautions.............67
1-2. Lexus Enform LEXUS Enform Safety Connect......................................... 68
LEXUS Enform Remote .............74
LEXUS Enform Service Connect......................................... 75
1-3. Theft deterrent system Engine immobilizer system........76
Alarm ................................................. 78
Theft prevention labels .................81 2. Instrument cluster
Warning lights and indicators....................................... 84
Gauges and meters ..................... 89
Multi-information display .......... 94
Fuel consumption information .....................................111
3-1. Key information Keys .................................................... 118
3-2. Opening, closing and locking the doors and
trunk
Doors ................................................ 124
Trunk ................................................ 130
Smart access system with push-button start.......................135
3-3. Adjusting the seats Front seats ......................................143
Rear seats .......................................145
Driving position memory.......... 147
Head restraints .............................152
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 155
Inside rear view mirror .............. 157
Outside rear view mirrors .......159
1For safety and security
2Instrument cluster
3Operation of each
component

25
For safety and security1
IS350 AWD/IS350/IS300 AWD/IS300_U
1-1. For safe useBefore driving................................. 26
For safe driving .............................. 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system.................. 46
Safety information for children ................................... 52
Child restraint systems ............... 53
Installing child restraints............. 57
Exhaust gas precautions ............ 67
1-2. Lexus Enform LEXUS Enform Safety Connect ......................................... 68
LEXUS Enform Remote ............ 74
LEXUS Enform Service Connect ......................................... 75
1-3. Theft deterrent system Engine immobilizer system ....... 76
Alarm ................................................. 78
Theft prevention labels ................ 81

76
IS350 AWD/IS350/IS300 AWD/IS300_U1-3. Theft deterrent 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 grip portion of the key is
in contact with a metallic object
●If the key is in close proximity to or touching a key registered to the security system (key
with a built-in transponder chip) of another vehicle
Engine immobilizer system
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 preven t vehicle theft but does not guarantee
absolute security agai nst all vehicle thefts.

771-3. Theft deterrent system
1
For safety and security
IS350 AWD/IS350/IS300 AWD/IS300_U
■Certifications for the engine immobilizer system
For vehicles sold in the U.S.A.
For vehicles sold in Canada
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of
the system cannot be guaranteed.

1373-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from receiving radio waves.
■Conditions affecting operation
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. 572)
●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 carrying a portable radio, cellular phone, cordless phone or other wireless com-
munication device
●When the electronic key is in contact wi th, or is covered by the following metallic
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 keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio
waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or person al digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win-
dow
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.

1884-2. Driving procedures
IS350 AWD/IS350/IS300 AWD/IS300_U
■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.
■Automatic engine shut off feature
●The vehicle is equipped with a feature that automatically shuts off the engine when the
shift lever is in P with the engine running for an extended period.
●The engine will automatically shut off after ap proximately 1 hour if it has been left run-
ning while the shift lever is in P.
●The timer for the automatic engine shut off feature will reset if the brake pedal is
depressed or if the sh ift lever is in a position other than P.
●After the vehicle is parked, if the door is locked with the door lock switch (P. 126)
from the inside or the mechanical key from the outside, the automatic engine shut off
feature will be disabled. The ti mer for the automatic engine sh ut off feature will be re-
enabled if the driver’s door is opened.
■Electronic key battery depletion
 P. 121
■Conditions affe cting operation
 P. 137
■Notes for the entry function
P. 138
■If the engine does not start
●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.
●The engine immobilizer system ma y not have been deactivated. (P. 76)
Contact your Lexus dealer.
■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 the steering lock cannot be released
“Steering Wheel Lock Press Engine Switch
while Turning Wheel” w ill be displayed on the
multi-information display.
Check that the shift leve r is in P. Press the
engine switch while turn ing the steering wheel
left and right.

5708-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U
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 following correct starting procedures.
( P. 186)
●There may be a malfunction in th e engine immobilizer system. (P. 76)
One of the following may be the cause of the problem:
●The battery terminal connections may be loose or corroded.
●The battery may be discharged. ( P. 575)
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletio n or a blown fuse. However, an interim
measure is available to start the engine. ( P. 571)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed ( P. 186), consider each of the following points:
The engine will not start even thoug h 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

645Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
E-mail.........................................................380
Eco drive mode ..................................... 297
Eco Driving Indicator........................... 109
EDR (Event data recorder) ...................10
Elapsed time .............................................. 112
Electric Power Steering (EPS) ....... 302Warning light .......................................526
Electronic key ........................................... 118 Battery-saving function .....................137
If the electronic key does not operate properly............................. 572
Replacing the battery ...................... 502
Emergency, in case of If a warning message is displayed ........................................532
If the electronic key does not operate properly ........ 572
If the engine will not start............... 570
If the vehicle battery is discharged .........................................575
If the vehicle is trapped in rising water ......................................... 516
If the warning buzzer sounds................................................. 525
If the warning light turns on.......... 525
If you have a flat tire ......................... 559
If you think something is wrong...............................................523
If your vehicle becomes stuck ..................................................... 583
If your vehicle has to be stopped in an emergency ........... 515
If your vehicle needs to be towed ........................................ 517
If your vehicle overheats ................579 Emergency flashers .............................. 514
Engine ....................................................... 589
ACCESSORY mode .......................187
Compartment ..................................... 473
Engine switch ....................................... 186
Hood........................................................ 470
How to start the engine................... 186
Identification number...................... 588
If the engine will not start ............... 570
Ignition switch (engine switch) .... 186
Overheating......................................... 579
Engine coolant .......................................478 Capacity................................................. 592
Checking ............................................... 478
Preparing and checking before winter ....................................306
Engine coolant temperature gauge ........................................................ 89
Engine immobilizer system .................. 76
Engine oil ..................................................475 Capacity................................................ 590
Checking ............................................... 475
Preparing and checking before winter ....................................306
Engine oil maintenance data ............ 477
Engine switch ...........................................186
Enhanced VSC .......................................301
EPS (Electronic Power Steering) ........ 302 Warning light ....................................... 526
Event data recorder (EDR)................... 10
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