immobilizer LEXUS IS250 2016 Owners Manual

TABLE OF CONTENTSIndex
2
1-1. Key information
Keys...................................................... 20
1-2. Opening, closing and locking
the doors and trunk
Smart access system with
push-button start .......................... 24
Wireless remote control .............. 36
Doors.................................................... 39
Trunk..................................................... 43
1-3. Adjustable components
(seats, mirrors,
steering wheel)
Front seats .......................................... 46
Driving position memory
(driver’s seat) ................................. 48
Seat position memory
(front passenger’s seat) ............. 52
Head restraints................................. 54
Seat belts ............................................ 56
Steering wheel (manually
adjustable type)............................. 62
Steering wheel
(power-adjustable type)............ 63
Anti-glare inside rear view
mirror ................................................ 65
Outside rear view mirrors ........... 66
1-4. Opening and closing the
windows and moon roof
Power windows................................ 69
Moon roof ............................................ 71
1-5. Refueling
Opening the fuel tank cap........... 74
1-6. Theft deterrent system
Engine immobilizer system ......... 77
Alarm.................................................... 79
Theft prevention labels
(U.S.A.) .............................................. 81
1-7. Safety information
Correct driving posture ............... 82
SRS airbags ....................................... 84
Front passenger occupant
classification system .................... 95
Child restraint systems ............... 100
Installing child restraints ............. 104
2-1. Driving procedures
Driving the vehicle .......................... 116
Engine (ignition) switch .............. 126
Automatic transmission................ 131
1Before driving
2When driving

77
1

Before driving
1-6. Theft deterrent system
Engine immobilizer system
nSystem maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
nConditions that may cause the system to malfunction
lIf the grip portion of the key is in contact with a metallic object
lIf the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the 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.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.

78
1-6. Theft deterrent system
nCertifications for the engine immobilizer system
For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
CAUTION
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
NOTICE
nTo prevent damage to the key
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

129
2-1. Driving procedures
2

When driving
nIf the engine does not start
The engine immobilizer system may not have been deactivated. (→P. 7 7 )
nWhen the steering lock cannot be released
nWhen the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
nAuto power off function
If the vehicle is left in ACCESSORY mode for more than an hour with the shift lever
in P (vehicles with an automatic transmission), the “ENGINE START STOP” switch
will automatically turn OFF.
nElectronic key battery depletion
→P. 30
nWhen the electronic key battery is fully discharged
→P. 34 5
nConditions affecting operation
→P. 28
nNote for the entry function
→P. 31
The “ENGINE START STOP” switch indica-
tor will flash in green and a message will be
shown on the multi-information display. Press
the “ENGINE START STOP” switch again
while turning the steering wheel left and right.

5

When trouble arises
413
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are
being followed (→P. 126), consider each of the following points.
nThe engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
lThere may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
lThe engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (→P. 1 2 6 )
lThere may be a malfunction in the engine immobilizer system.
(→P. 7 7 )
nThe starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
lThe battery may be discharged. (→P. 4 2 1 )
lThe battery terminal connections may be loose or corroded.
nThe starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
lOne or both of the battery terminals may be disconnected.
lThe battery may be discharged. (→P. 4 2 1 )
lThere may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

479
Alphabetical index
Engine compartment cover............... 312
Engine coolant
Capacity................................................. 435
Checking ................................................. 317
Preparing and checking
before winter .................................... 200
Engine coolant temperature
gauge ....................................................... 142
Engine immobilizer system .................. 77
Engine oil
Capacity................................................. 434
Checking ................................................. 313
Preparing and checking
before winter .................................... 200
Engine oil maintenance data ............. 316
EPS...............................................................186
Event data recorder..............................381
First-aid kit storage belt......................278
Floor mat................................................... 277
Fluid
Brake ......................................................... 319
Washer ................................................... 324
Fog lights
Switch ........................................................159
Wattage ................................................. 445
Foot well lighting ................................... 247
Front fog lights
Switch ........................................................159
Wattage ................................................. 445
Front passenger occupant
classification system ............................ 95
Front passenger's seat belt
reminder light..................................... 385
Front seats
Adjustment ............................................... 46
Driving position memory ..................48
Seat position memory ........................ 52
Front turn signal lights
Switch........................................................ 139
Wattage ..................................................445
Fuel
Capacity .................................................433
Fuel gauge...............................................142
Fuel pump shut off system............ 380
Gas station information ................. 488
Information ............................................446
Refueling.................................................... 74
Fuel door ..................................................... 74
Fuel filler door ........................................... 74
Fuel pump shut off system ................ 380
Fuses .......................................................... 347
Garage door opener ........................... 281
Gas station information..................... 488
Gauges ...................................................... 142
Glove box ................................................. 251
Glove box light ...................................... 252
F
G

484
Alphabetical index
Tachometer
Tacho indicator..................................... 142
Tachometer ............................................ 142
Tail lights
Switch ....................................................... 156
Talk switch*
Telephone switch*
Theft deterrent system
Alarm .......................................................... 79
Engine immobilizer system .............. 77
Theft prevention labels ........................... 81
Tire inflation pressure .........................336
Tire information
Glossary................................................. 454
Size .............................................................451
Tire identification number ...............451
Uniform tire quality grading ......... 452
Tires
Chains .....................................................200
Checking ............................................... 325
If you have a flat tire ..........................404
Inflation pressure................................ 336
Inflation pressure sensor................ 327
Information............................................ 449
Replacing ...............................................404
Rotating tires ........................................ 325
Size ........................................................... 439
Snow tires ..............................................200
Tools ...........................................................404
Total load capacity ................................ 199
Towing
Dinghy towing ........................205, 206
Emergency towing ............................373
Trailer towing ...................................... 204
TRAC ......................................................... 186
Traction control...................................... 186
Transmission shift switches.................134
Trip meter ..................................................142
Trunk
Extending a space .............................275
Opener ...................................................... 43
Trunk light
Trunk light ................................................. 44
Wattage ................................................. 445
Turn signal lights
Replacing light bulbs ....................... 363
Switch ........................................................ 139
Wattage ................................................. 445
Vanity lights
Vanity lights.......................................... 258
Wattage ................................................. 445
Vanity mirrors ........................................ 258
VDIM.......................................................... 186
Vehicle dynamics integrated
management ........................................ 186
Vehicle identification number...........431
Vehicle stability control ...................... 186
Ventilators ............................................... 269
VSC ............................................................ 186
T
V

486
What to do if...
What to do if...
A tire puncturesP. 4 0 4If you have a flat tire
The engine does not start
P. 4 1 3If the engine will not start
P. 7 7Engine immobilizer system
P. 4 1 7If the vehicle battery is discharged
The shift lever cannot be
moved outP. 4 1 5
If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 4 2 4If your vehicle overheats
The key is lostP. 4 1 6If you lose your keys
The battery runs outP. 4 2 1If the vehicle battery is discharged
The doors cannot be lockedP. 3 9Doors
The horn begins to soundP. 7 9Alarm
The vehicle is stuck in mud or
sandP. 4 2 7If the vehicle becomes stuck

Topic 1
Entering and Exiting
9
IS_U (L/O_0808)
Theft Deterrent System
nEngine immobilizer system
The engine immobilizer system prevents the
engine from being started in the event that an
attempt is made to start the vehicle using an
unregistered key.
The security indicator light flashes to indicate that
the system is set.
nAlarm
The system sounds the alarm and flashes lights when forcible entry is detected.
To set the alarm: lock all the doors from outside the vehicle. The security indicator light
comes on to indicate that the alarm is in its preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the “ENGINE START STOP” switch to ACCESSORY
or IGNITION ON mode, or unlock the doors or trunk using the electronic key or the wire-
less remote control.
nSteering lock
The steering wheel locks when the “ENGINE
START STOP” switch is OFF.
When the steering lock cannot be released, the
green indicator light on the “ENGINE START
STOP” switch will flash and a message will be
shown on the multi-information display. To release
it, gently turn the wheel left or right while pressing
the “ENGINE START STOP” switch.
The theft deterrent system includes the following features to help protect your vehicle from
theft.