immobilizer LEXUS UX250H 2019 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 ......................................... 31
Front passenger occupant classifi- cation system ................................. 39
Exhaust gas precautions .............. 43
1-2. Child safety Riding with children........................ 44
Child restraint systems ................. 44
1-3. LEXUS Enform Lexus Enform Safety Connect .. 56
Lexus Enform Remote .................. 60
Lexus Enform Service Connect.. 61
1-4. Hybrid system Hybrid system features .................. 62
Hybrid system precautions ......... 65
1-5. Theft deterrent system Immobilizer sy stem ........................ 69
Alarm...................................................... 71
Theft prevention labels (for the U.S.A.)................................................ 72
2-1. Instrument cluster Warning lights and indicators ..... 74Gauges and meters (except F
SPORT models) ............................ 78
Gauges and meters (F SPORT models).............................................. 82
Multi-information display ............. 87
Head-up display ............................... 93
Energy monitor/consumption screen ................................................ 97
3-1. Key information Keys .................................................... 104
3-2. Opening, closing and locking the doors
Side doors ........................................ 108
Back door........................................... 112
Smart access system with push-but- ton start ........................................... 124
3-3. Adjusting the seats Front seats.......................................... 131
Rear seats.......................................... 132
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.......... 142
3-5. Opening, closing the windows and moon roof
Power windows ............................. 145
Moon roof ......................................... 147
1For safety and security
2Vehicle status information and
indicators
3Before driving

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 ..................................... 31
Front passenger occupant classifi- cation system .............................. 39
Exhaust gas precautions ........... 43
1-2. Child safety Riding with children..................... 44
Child restraint systems .............. 44
1-3. LEXUS Enform Lexus Enform Safety Connect 56
Lexus Enform Remote ............... 60
Lexus Enform Service Connect 61
1-4. Hybrid system Hybrid system features .............. 62
Hybrid system precautions ...... 65
1-5. Theft deterrent system Immobilizer sy stem ..................... 69
Alarm................................................... 71
Theft prevention labels (for the U.S.A.)............................................. 72

691-5. Theft deterrent system
1
For safety and security
1-5.Theft deterrent systemThe security indicator 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
ACC or ON to indicate that the sys-
tem has been canceled.
■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
■Certification 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

1253-2. Opening, closing and locking the doors
3
Before driving■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 12-volt battery from being
discharged while the vehicle is not in opera-
tion 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 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 electronic 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 function, press any of the electronic key
buttons.
●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
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.403)
●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 carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
●When the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
SituationCorrection proce-
dure
The power switch
was turned to ACC while the driver’s
door was open (The driver’s door was
opened when the
power switch was in ACC).
Turn the power
switch off and close the driver’s door.
The power switch
was turned off while
the driver’s door was open.
Close the driver’s door.

1624-2. Driving procedures
4-2.Driving procedures
1Press the parking brake switch to
check that the parking brake is set.
(P.172)
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 necessary 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 ACC or
ON to OFF, the power switch illumina-
tion 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 ACC or
ON, the power switch illumination illumi-
nates.
■If the hybrid system does not start
●The immobilizer system may not have
been deactivated. ( P.69)
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.
●The smart access system with push-but-
ton start may not be operating prop-
erly.( P.404)
■When the ambient temperature is low,
such as during winter driving conditions
When starting the hybrid system, the flash-
ing time of the “READY” indicator may be
long. Leave the vehicle as it is until the
“READY” indicator is steady on, as steady
means the vehicle is able to move.
■Sounds and vibrations specific to a
hybrid vehicle
 P.64
■Electronic key battery depletion
 P.104
■Conditions affecting operation
 P.125
■Note for the entry function
 P.126
Power (ignition) switch
Performing the following opera-
tions when carryin g the electronic
key on your person starts the hybrid
system or changes power switch
modes.
Starting the hybrid system

4007-2. Steps to take in an emergency
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.403)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.190)
 There may be a malfunction in the
immobilizer system. ( P.69)
 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
NOTICE
■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.
■When driving over bumps
If a vehicle has a flat tire, the vehicle
height will be lower than usual. Ensure
that nothing strikes the bottom of the
vehicle.
■To avoid damaging the tire pressure
warning valves and transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used , contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and trans-
mitter when replacing the tire. ( P.350)
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.162)
The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

Alphabetical Index467
Glove box light ............................................. 294
Grocery bag hooks .................................... 296
H
Hands Free Power Back Door ................. 116
Headlights ........................................................ 177Automatic High Beam system............. 180
Light switch ..................................................... 177
Replacing light bulbs................................ 374
Headlights aim .............................................. 372
Head restraints ...............................................136
Head-up display.............................................. 93 Driving information display area........... 93
Driving support system display area .. 95
Head-up display switch............................. 94
Hybrid System Indicator ........................... 96
Navigation system-linked display ........ 93
Pop-up display............................................... 95
Settings .............................................................. 94
Head-up display switch................................ 94
Heated steering wheel .............................. 286
Heaters Automatic air conditioning system ... 276
Heated steering wheel............................286
Outside rear view mirrors .....................277
Seat heaters ..................................................286
Hill-start assist control ............................... 257
Hood ................................................................. 335 Open ............................................................... 335
Hooks Cargo hooks................................................ 296
Coat hooks .................................................... 310
Grocery bag hooks ................................. 296
Retaining hooks (floor mat)......................24
Horn ................................................................... 140
Hybrid battery (traction battery) Location............................................................. 65
Specification .................................................. 418
Warning message........................................ 68
Hybrid battery (traction battery) air vent ..............................................................................67
Hybrid system .................................................. 62 Emergency shut off system......................68
Energy monitor/consumption screen 97
EV drive mode............................................. 165
High voltage components .......................65
Hybrid system precautions......................65
Hybrid vehicle driving tips ......................261
If the hybrid system will not start ....... 400
Overheating .................................................. 410
Power (ignition) switch .............................162
Regenerative braking ................................. 63
Starting the hybrid system .......................162
Vehicle proximity noti
fication system. 64
Hybrid System Indicator..............79, 84, 96
Hybrid transmission...................................... 167
I
I/M test ..............................................................331
Identification Engine................................................................417
Vehicle ............................................................. 416
Ignition switch (Power switch) .................162 Auto power off function........................... 164
Changing the power switch modes . 164
If your vehicle has to be stopped in an emergency .................................................378
Starting the hybrid system .......................162
Illuminated entry system ........................... 290
Immobilizer system........................................ 69
Indicators ............................................................76
Initialization Items to initialize .........................................446
Maintenance.................................... 328, 339
Power windows ........................................... 145
Tire pressure warning system .............. 351
Inside rear view mirror ............................... 140
Instrument panel light control .......... 80, 86
Interior lights.................................................. 290
Intuitive parking assist...................... 231, 232 Function .......................................................... 232
Warning message ..................................... 234

472Alphabetical Index
Speedometer ........................................... 78, 82
Sport mode .................................................... 255
Steering lockColumn lock release..................................163
Steering lock system warning message...........................................................................163
Steering wheel Adjustment......................................................139
Heated steering wheel............................286
Meter control switches ..............................88
Power easy access system .....................133
Steering wheel position memory ........133
Stop lights Replacing light bulbs................................ 374
Storage feature ............................................ 293
Stuck If the vehicle becomes stuck..................413
Suggestion function....................................... 92
Sunshade.......................................................... 148
Sun visors ......................................................... 301
Switches “ODO TRIP” switch .......................... 80, 86
“SOS” button .................................................. 56
ASC (Active Sound Control) switch 176
Automatic High Beam system............. 180
Brake hold switch........................................ 175
BSM (Blind Spot Monitor) switch .... 228
Door lock switches ...................................... 110
Driving mode select switch .................. 255
Driving position memory switches .....133
Dynamic radar cruise control with full-speed range switch ................................. 217
Emergency flashers switch ................... 378
EV drive mode switch ............................. 165
Fog light switch ............................................ 183
Garage door opener switches ............. 311
Head-up display switch............................. 94
Heated steering wheel............................286
Ignition switch................................................ 162
Instrument panel light control switches .................................................................. 80, 86
Intuitive parking assist switch............... 233 Light switch ..................................................... 177
LTA (Lane-Tracing Assist) switch ..... 210
Meter control switches ............................. 88
Moon roof switches....................................147
Outside rear view mi
rror switches .....142
Paddle shift switches .......................169, 170
Parking brake switch.................................. 172
PCS OFF switch ....................................... 200
PKSB (Parking Support Brake) switch .......................................................................... 244
Power back door opener and closer switch ............................................................... 115
Power door lock switch ............................ 110
Power switch..................................................162
Power window switch .............................. 145
RCTA switch ................................................239
Rear window and outside rear view mir- ror defoggers switch ............................ 277
Rear window wiper and washer switch ........................................................................... 188
Seat heater switches.................................287
Seat ventilator switches .......................... 287
Tire pressure warning reset switch.... 351
Vehicle-to-vehicle di stance switch..... 217
VSC off switch ............................................ 257
Window lock switch.................................. 146
Windshield wiper de-icer switch....... 279
Windshield wipers and washer switch ........................................................................... 184
T
Tachometer............................................... 78, 82 Rev indicator ...................................................84
Rev peak............................................................84
Tail lights Light switch ..................................................... 177
Replacing light bulbs ................................ 374
Theft deterrent system Alarm..................................................................... 71
Immobilizer system ......................................69
Tire inflation pressure Maintenance data ...................................... 422