immobilizer LEXUS RX350 2021 Owners Manual

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 .................................... 24
For safe driving.................................. 25
Seat belts ............................................. 26
SRS airbags ....................................... 30
Front passenger occupant classifi- cation system ................................. 39
Exhaust gas precautions .............. 44
1-2. Child safety Riding with children........................ 45
Child restraint systems ................. 45
1-3. Lexus Enform Lexus Enform Safety Connect .. 60
1-4. Theft deterrent system Engine immobilizer system ......... 66
Alarm.................................................... 68
2-1. Instrument cluster Warning lights and indicators ..... 72
Gauges and meters ........................ 77
Multi-information display.............. 81
Head-up display .............................. 88
Fuel consumption information .... 923-1. Key information
Keys ....................................................... 96
3-2. Opening, closing and locking the doors
Side doors ........................................... 99
Power back door .......................... 103
Smart access system with push-but- ton start ............................................ 115
3-3. Adjusting the seats Front seats.......................................... 121
Rear seats.......................................... 122
Driving position memory ........... 133
Head restraints .............................. 136
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................... 139
Inside rear view mirror ............... 140
Outside rear view mirrors........... 141
3-5. Opening, closing the windows and moon roof
Power windows .............................. 144
Moon roof ........................................ 146
Panoramic moon roof ................. 149
4-1. Before driving Driving the vehicle........................ 154
Cargo and luggage...................... 159
Vehicle load limits.......................... 162
Trailer towing (vehicles without towing package)......................... 163
1For safety and security
2Vehicle status information and
indicators
3Before driving
4Driving

23
1
1
For safety and security
For safety and security
.1-1. For safe useBefore driving ................................. 24
For safe driving.............................. 25
Seat belts ......................................... 26
SRS airbags .................................... 30
Front passenger occupant classifi- cation system .............................. 39
Exhaust gas precautions ........... 44
1-2. Child safety Riding with children..................... 45
Child restraint systems .............. 45
1-3. Lexus Enform Lexus Enform Safety Connect........................................................... 60
1-4. Theft deterrent system Engine immobilizer system ...... 66
Alarm................................................. 68

661-4. Theft deterrent system
1-4.Theft deterrent systemThe 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 touch-
ing a key registered to the security sys-
tem (key with a built-in transponder chip)
of another vehicle
■Certification for the en gine immobilizer system
Except for vehicles sold in Canada
Engine immobilizer system
The vehicle’s keys have built-in tran-
sponder 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 pre-
vent vehicle theft but does not
guarantee absolute security
against all vehicle thefts.
Operating the system

1163-2. Opening, closing and locking the doors
■If “Key Left inside 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 elec-
tronic 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 vehicl e 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 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-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 cannot be unlocked at
any doors except the driver’s door. In this
case, take hold of the driver’s door han-
dle, or use the wireless remote control or
the mechanical key, to unlock the doors.
■Turning an electronic key to bat-
tery-saving mode
When battery-saving mode is set, battery
depletion is minimized by stopping the elec-
tronic key from re ceiving radio waves. 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.
■Conditions affecting operation
The smart access system with push-button
start, wireless remote control and engine
immobilizer system use weak radio waves.
In the following situations, the communica-
tion between the electronic key and the
vehicle may be affected, preventing the
smart access system with push-button start,
wireless remote control and engine immo-
bilizer system from operating properly.
(Ways of coping: P.431)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other fac ility 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 keys (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
SituationCorrection
procedure
The engine switch was
turned to ACCESSORY
mode while the driver’s
door was open (The
driver’s door was opened
when the engine switch
was in ACCESSORY
mode).
Turn the engine
switch off and
close the
driver’s door.

1744-2. Driving procedures
4-2.Driving procedures
1Check that the parking brake is set.
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 engine cannot be
started.
4 Press the engine switch shortly and
firmly.
When operating the engine switch, one
short, firm press is enough. It is not neces-
sary to press and hold the switch.
The engine will crank until it starts or for up
to 30 seconds, whichever is less.
Continue depressing the brake pedal until
the engine is completely started.
The engine can be started from any engine
switch mode.
■Engine switch illumination
According to the situation, the engine
switch illumination operates as follows.
●When a door is opened, or the engine
switch mode is changed from ACCES-
SORY or IGNITION ON mode to off,
the engine switch illumination slowly
blinks.
●When depressing the brake pedal with
carrying the electronic key on your per-
son, the engine switch illumination rapidly
blinks.
●When the engine sw itch is in ACCES-
SORY or IGNITION ON mode, the
engine switch illumination illuminates.
■If the engine does not start
●The engine immobilizer system may not
have been deactivated. ( P.66)
Contact your Lexus dealer.
●Check that the shift leve r is securely set in
P. The engine may not start if the shift
lever is displaced out of P. “To Start Vehi-
cle, Put Shift Lever into P” will be dis-
played on the multi-information display.
●If the door is unlock ed with the mechani-
cal key, the engine cannot be started
using the smart access system with
push-button start. Refer to P.432to start
the engine. However, if the electronic key
is carried inside the vehicle and the doors
are locked ( P.101), the engine can be
started.
■Electronic key battery depletion
 P.96
■Conditions affecting operation
 P.116
■Note for the entry function
 P.117
■Steering lock function
●After turning the engine switch off and
opening and closing the doors, the steer-
ing wheel will be lock ed due to the steer-
ing lock function. Operating the engine
switch again automatically cancels the
steering lock.
●When the steering lock cannot be
Engine (ignition) switch
Performing the following opera-
tions when carryin g the electronic
key on your person starts the
engine or changes engine switch
modes.
Starting the engine

4287-2. Steps to take in an emergency
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 fol-
lowing correct starting procedures.
( P.174)
 There may be a malfunction in the
engine immobilizer system.
( P.66)
One of the following may be the cause
of the problem:
 The battery may be discharged.
( P.433)
 The battery terminal connections
may be loose or corroded.
( P.363)
NOTICE
■Proper storage of the spare tire
(RX350L)
●If the hoist assembly is slanted when
stowing a tire, the hoist assembly may
become stuck in the wheel opening
and the tire may not be raised properly,
causing damage to the wheel or the
wire cable.
●If the spare tire clamp bolt is turned
without a tire on the hoist assembly, the
wire cable may not be able to be low-
ered. If the wire cable cannot be low-
ered, contact your Lexus dealer.
If the engine will not start
If the engine will not start even
though correct starting procedures
are being followed ( P.174), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
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.

496Alphabetical Index
If the vehicle is trapped in rising water.........................................................................395
If you have a flat tire ....................................416
If you lose your keys.................................430
If you think something is wrong .......... 401
If your vehicle becomes stuck............. 439
If your vehicle has to be stopped in an
emergency ................................................ 394
If your vehicle needs to be towed ..... 397
If your vehicle overheats ........................ 437
Engine ACCESSORY mode ............................... 177
Compartment .............................................359
Engine switch................................................. 174
Fuel pump shut off system .................... 402
Hood................................................................ 357
How to start the engine............................ 174
Identification number ............................... 443
If the engine will not start ....................... 428
If your vehicle has to be stopped in an
emergency ................................................ 394
Ignition switch (engine switch) ............. 174
Overheating................................................. 437
Tachometer ...................................................... 77
Engine coolant Capacity ......................................................... 446
Checking .........................................................361
Preparing and checking before winter.........................................................................280
Engine coolant temperature gauge ........ 77
Engine immobilizer system ........................ 66
Engine oil Capacity ......................................................... 444
Checking .......................................................359
Preparing and checking before winter.........................................................................280
Warning light ...............................................404
Engine oil maintenance data ....................361
Engine switch .................................................. 174 Auto power off function ........................... 177
Changing the engine switch modes.. 177 If your vehicle has to be stopped in an
emergency .................................................394
EPS (Electric Power Steering) .............. 275 Warning light .............................................. 405
Event data recorder (E DR) ............................7
F
Flat tire
Tire pressure warning system ............. 367
Vehicles with a spare tire........................ 416
Floor mats .......................................................... 24
Fluid Automatic transmission .......................... 447
Brake ................................................................ 447
Washer ...........................................................364
Fog lights Switch................................................................ 194
Footwell light ................................................. 309
Front automatic air conditioning system .......................................................................... 292
Front fog lights Replacing light bulbs ............................... 385
Front passenger footwell hooks ............ 333
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ....................................................... 121
Cleaning ......................................................... 347
Correct driving posture ............................ 25
Driving position memory ........................ 133
Head restraints............................................. 136
Memory recall function............................ 135
Power easy access system .................... 133
Seat heaters ................................................. 306
Seat position memory .............................. 133
Seat ventilators ........................................... 306
Front side marker light Light switch ....................................................188
Replacing light bulbs ............................... 385
Front side marker lights Replacing light bulbs ............................... 385
Wattage ..........................................................449

503Alphabetical Index
Rear window and outside rear view mir-ror defoggers switch ............................ 292
Seat heater switches ................................306
Seat ventilator switches ..........................306
“SOS” button .................................................. 60
Tilt and telescopic steering control switch ...........................................................................139
Tire pressure warning reset switch .... 371
Vehicle-to-vehicle distance switch ...227
VSC OFF switch ....................................... 276
Window lock switch ..................................146
Windshield wiper and washer switch194
Windshield wiper de-icer switch ...... 297
T
Tachometer........................................................ 77 Rev indicator ................................................... 78
Rev peak ........................................................... 79
Tail lights Light switch .................................................... 188
Replacing light bulbs............................... 385
The Secondary Collision Brake ............ 275
Theft deterrent system Alarm .................................................................. 68
Engine immobilizer system ..................... 66
Tire inflation pressure Maintenance data......................................448
Tire inflation pressu re display function
......................................................................... 367
Warning light ............................................... 407
Tire information ............................................ 452 Glossary.........................................................456
Size.................................................................... 454
Tire identification number ..................... 453
Uniform Tire Quality Grading............ 454
Tire pressure display .................................. 367
Tire pressure warning system Function .......................................................... 367
Initializing ......................................................... 371
Installing tire pressure warning valves and transmitters ...................................... 370
Registering ID codes ............................... 372 Warning light ...............................................407
Tires Chains .............................................................. 281
Checking ...................................................... 365
If you have a flat tire ................................... 416
Inflation pressure ........................................ 373
Information ....................................................452
Replacing ........................................................ 416
Rotating tires ................................................ 367
Size ................................................................... 448
Snow tires ..................................................... 280
Spare tire ......................................................... 416
Tire inflation pressure display function.......................................................................... 367
Tire pressure warning system ............. 367
Warning light ...............................................407
Tools.................................................................... 417
Top tether strap............................................... 57
Total load capacity ...................................... 442
Towing Dinghy towing ...............................................173
Emergency towing.................................... 397
Towing eyelet.............................................. 399
Trailer towing ................................................ 163
TRAC (Traction Control) ........................ 275
Traction Control (TRAC) ........................ 275
Trailer Sway Control.................................. 275
Trailer towing ..................................................163
Transmission Automatic transmission ........................... 178
Driving mode select switch .................... 271
M mode ............................................................. 181
Paddle shift switches ........................ 180, 181
Trip meters ........................................................ 80
Turn signal lights Replacing light bulbs ............................... 385
Turn signal lever .......................................... 182
Wattage ..........................................................449
U
USB charging ports.................................... 322