immobilizer lexus LFA 2012 Technical Information / LEXUS 2012 LFA OWNERS MANUAL (OM77006U)

TABLE OF CONTENTSIndex
2
1-1. Key informationKeys ...................................................... 20
1-2. Opening, closing and locking the doors
Wireless remote control .............. 22
Doors.................................................... 25
Rear hatch .......................................... 29
1-3. Adjustable components (seats, mirrors,
steering wheel)
Seats ..................................................... 32
Seat belts ............................................ 36
Steering wheel................................... 41
Anti-glare inside rear view mirror ...................................... 42
Outside rear view mirrors ........... 43
1-4. Opening and closing the windows
Power windows................................ 46
1-5. Refueling Opening the fuel tank cap........... 49
1-6. Theft deterrent system Engine immobilizer system ......... 53
Alarm.................................................... 55 1-7. Safety information
Correct driving posture ............... 59
SRS airbags ........................................ 61
Passenger occupant classification system .................... 72
Child restraint sy stems ................. 76
Installing child restraints .............. 80
2-1. Driving procedures Driving the vehicle ......................... 88
Ignition switch ................................... 98
ASG (Automated Sequential Gearbox)................ 102
Turn signal lever............................... 112
Parking brake ................................... 113
Horn...................................................... 115
2-2. Instrument cluster Gauges and meters ....................... 116
Indicators and warning lights................................................... 121
Using the menu .............................. 124
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 158
Windshield wipers and washer............................................. 160
1Before driving
2When driving

Before driving1
19
1-1. Key informationKeys .............................................. 20
1-2. Opening, closing and locking the doors
Wireless remote control ......... 22
Doors ............................................ 25
Rear hatch ................................... 29
1-3. Adjustable components
(seats, mirrors,
steering wheel)
Seats............................................. 32
Seat belts ..................................... 36
Steering wheel ............................ 41
Anti-glare inside rear view mirror ............................... 42
Outside rear view mirrors ...... 43
1-4. Opening and closing the windows
Power windows .......................... 46 1-5. Refueling
Opening the fuel tank cap ..... 49
1-6. Theft deterrent system Engine immobilizer system.... 53
Alarm............................................ 55
1-7. Safety information Correct driving posture ......... 59
SRS airbags .................................. 61
Passenger occupant classification system.............. 72
Child restraint systems ............ 76
Installing child restraints......... 80

53
1
Before driving
1-6.Theft deterrent system
Engine immobilizer system
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.
■ Setting and canceling the engine immobilizer system
U.S.A.
The system will set after the key has been removed from the ignition
switch.
The system will be canceled when the registered key is inserted into the
ignition switch.
Canada
The indicator light flashes after the
key has been removed from the
ignition switch to indicate that the
system is operating.
The indicator light stops flashing
after the registered key has been
inserted into the ignition switch 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 to the security system (key
with a built-in transponder chip) of another vehicle

54
1-6. Theft deterrent system
■Certifications for the engine immobilizer system For vehicles sold in the U.S.A.
FCC ID: MOZRI-33BTY
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.
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.

100
2-1. Driving procedures
■If the engine does not start
●Repeat the procedure again. If the engine does not start after a few tries, the
“ENGINE START” switch may be malfunctioning. Have the vehicle inspected
by your Lexus dealer.
●Check to make sure that the brake pedal is firmly depressed and that “N” is dis-
played in the gear indicator. (If the brake pedal is not depressed or “N” is not
displayed, the engine will not start.)
●The engine immobilizer system may not have been deactivated. ( P. 5 3 )
●In order to protect the engine, the engine may not start when the engine coolant
temperature or the engine oil temperature is below -13 F (-25C). In that case,
a buzzer will sound and “Temp low Engine cannot be started” will be shown on
the meter. ( P. 3 2 7 )
■When the steering lock cannot be released
■Key reminder function
A buzzer sounds if the driver’s door is opened while the ignition switch is in the
“LOCK” or “ACC” position to remind you to remove the key.
■After reconnecting the battery
If the gear indicator is not displayed when an attempt is made to start the engine,
the engine is not yet ready to start. Depr ess the brake pedal for several seconds and
wait for the gear indicator to appear.
When starting the engine, the ignition switch
may seem stuck in the “LOCK” position. To
free it, turn the key while turning the steering
wheel slightly left and right.

5
When trouble arises
343
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. 98), consider each of the following points.
■ The engine will not start even when the starter motor operates nor-
mally.
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 once more following correct starting pro-
cedures. ( P. 9 8 )
● There may be a malfunction in the engine immobilizer system.
( P. 5 3 )
■ 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.
One of the following may be the cause of the problem.
● The battery may be discharged. ( P. 3 4 8 )
● The battery terminal connections may be loose or corroded.
■ The 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.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 3 4 8 )
Contact your Lexus dealer if the prob lem cannot be repaired, or if repair
procedures are unknown.

406
Alphabetical index
Engine coolant temperature gauge......................................................... 116
Engine immobilizer system.................. 53
Engine oil Adding engine oil .............................. 257
Capacity ...................................................361
Checking ............................................... 257
Engine oil consumption..................258
Engine oil pressure gauge ............... 116
Engine oil temperature gauge ....... 116
Oil brand .................................................361
Temperature ......................................... 100
Warning message..................324, 327
Engine oil level ........................................ 132
Engine oil maintenance ....................... 132
Engine oil temperature.......................... 116
EPS .............................................................. 166
Event data recorder ............................. 310 First-aid kit ................................................ 218
Flatbed tow truck.................................. 306
Floor jack ................................................. 253
Floor mats ..................................................215
Fluid
Brake ........................................................262
Washer....................................................264
Front turn signal lights Switch .......................................................... 112
Replacing light bulbs ....................... 299
Wattage ..................................................367
Fuel Capacity ................................................ 360
Fuel gauge ................................................ 116
Fuel pump shut off system ............ 309
Fuel tank cap ...........................................49
Information ........................................... 368
Warning light......................................... 315
Fuel consumption .......................... 118, 132
Fuel filler door Fuel tank.....................................................49
Washer fluid .........................................264
Fuel pump shut off system................. 309
Fuses .......................................................... 287
Gauges Adding engine oil...............................257
Tire pressure.........................................270
Meter ........................................................... 116
Gear changes ......................................... 102
Glove box ................................................. 210F
G

412
Alphabetical index
Switch“ENGINE START” switch ............... 98
Active rear wing ..................................... 171
Air conditioning system......... 186, 194
Audio system ....................................... 202
AUTO driving mode button......... 104
Control pad ............................................125
Driving mode selector switch ...... 104
Emergency flasher switch ............. 302
Hazard light switch ........................... 302
Interior lights.........................................208
Light switches ....................................... 158
Paddle shift switches ..........................102
Parking brake ..........................................113
Power door lock switch .................... 25
Power window switch ........................ 46
Reverse selector switch .................. 103
Shift speed selector ............................107
Talk switch*
1............................................ 191
Turn signal lever ................................... 167
VSC off switch ........................................112
Wipers and washer switch ............ 160 Tachometer
Tacho indicator .................................... 129
Tachometer.............................................. 116
Rev Peak.................................................. 148
Tail lights Replacing light bulbs ....................... 299
Switch ........................................................158
Talk switch*
1................................................... 191
Theft deterrent system Alarm.......................................................... 55
Engine immobilizer system ..............53
Timer Lap timer ................................................. 142
Tire information Glossary ................................................. 377
Size ............................................................373
Tire identification number .............. 372
Uniform tire quality grading..........375
Tire inflation pressure ............... 132, 366
Tire inflation pressure gauge ........... 278
Tires Air gauge................................................278
Chains.........................................................181
Checking................................................270
If you have a flat tire ..........................332
Inflation pressure ..................... 132, 366
Inflation pressure sensor ................270
Information ............................................. 371
Size ........................................................... 366
Snow tires................................................180
Tire inflation pressure gauge........278
Tire inflation pressure label ........... 277
Tool bag....................................... 281, 332
T

415
What to do if...
What to do if...
A tire puncturesP. 3 3 2If you have a flat tire
The engine does not start
P. 9 8Ignition switch
P. 3 4 3If the engine will not start
P. 5 3Engine immobilizer system
P. 3 4 8If the vehicle battery is discharged
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hoodP. 3 5 1If your vehicle overheats
The parking brake cannot be
releasedP. 3 4 5If the parking brake cannot be released
The key/wireless remote
control is lostP. 3 4 4If you lose your keys/wireless remote
control transmitter
The battery runs outP. 3 4 8If the vehicle battery is discharged
The doors cannot be lockedP. 2 5Doors
The rear hatch cannot be
openedP. 2 9Rear hatch
The horn begins to soundP. 5 5Alarm