2011 Lexus IS F engine

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IS F_EE
1-6. Theft deterrent system
Engine immobilizer system
System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
Conditions that may cause the system to malfunction
If the key is in contact with a metallic object
If the key is in close proximity to or touching a key to the security sys-
tem (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 operating.
The indicator light stops
flashing after the “ENGINE
START STOP” switch has
been turned to ACCESSORY
or IGNITION ON mode to
indicate that the system has

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1-6. Theft deterrent system
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Engine immobilizer certification

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1-6. Theft deterrent system
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Double locking system
Setting the double locking system
Turn the “ENGINE START STOP” switch OFF, have all the pas-
sengers exit the vehicle and ensure that all the doors are closed.
Using the entry function:
Press the lock button on the outside door handle twice within 2.5
seconds.
Using the wireless remote control:
Press twice within 5 seconds.
Canceling the double locking system
Using the entry function: Hold the outside door handle.
Using the wireless remote control: Press .
CAUTION
Double locking system precaution
Never activate the double locking system when there are people in the vehi-
cle, because all the doors cannot be opened from inside the vehicle.
Unauthorized access to the vehicle is prevented by disabling the door
unlocking function from both the interior and exterior of the vehicle.
Vehicles employing this sys-
tem have labels on the win-
dow glass of both front
doors.

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1
1-6. Theft deterrent system
Before driving
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Alarm
The system sounds the alarm and flashes the lights when forcible entry
is detected.
Triggering of the alarm
The alarm is triggered in the following situations with the
alarm set.
A locked door or trunk is unlocked or opened in any way
other than using the entry function or wireless remote door
lock function.
The hood is opened.
The intrusion sensor detects something moving inside the
vehicle. (An intruder gets in the vehicle.)
Setting the alarm system
Close the doors, trunk and
hood, and lock all doors
using the entry function or
the wireless remote control.
The system will be set auto-
matically after 30 seconds.
The indicator light changes
from being on to flashing
when the system is set.
Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
Unlock the doors or trunk using the entry function or the
wireless remote control.
Start the engine. (The alarm will be deactivated or stopped

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1-6. Theft deterrent system
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Canceling the intrusion sensor
The alarm will be set even when the intrusion sensor is canceled.
To re-enable the intrusion sensor, press the “ENGINE START STOP”
switch or unlock the doors using the wireless remote door lock function
while the intrusion sensor is canceled.
Automatic re-enabling of the intrusion sensor
When the alarm system is set again, the intrusion sensor will also be set.
Intrusion sensor
The sensor may trigger the alarm in the following situations.
Persons or pets are in the vehicle.
Unstable items, such as dangling accessories or clothes hanging on the
coat hooks, are in the vehicle.
The windows or moon roof are open.
The vehicle is parked in a place where extreme vibration or noises occur,
such as in a parking garage.
The vehicle is inside an automatic or high-pressure car wash.
The vehicle experiences impacts, such as hail, lightning strikes, or other
kinds of repeated impacts or vibrations.
Ice or snow is removed from the vehicle, causing the vehicle to receive
repeated impacts or vibrations.
The wind or something similar causes an externally mounted reflectively
coated windshield cover to move.
When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the
alarm may be triggered.
When using the mechanical key to unlock the doors or trunk
Deactivate the alarm.
If the doors or trunk are unlocked using the mechanical key with the alarm
operational, the alarm will be triggered.

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1-7. Safety information
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Airbag manual on/off system
Deactivating the front passenger airbags
This system deactivates the front passenger airbag, front passenger
knee airbag and front passenger side airbag.
Only deactivate the airbags when using a child restraint system on the
front passenger seat.
“PASSENGER AIRBAG”
indicator
This indicator turns on when
the airbag system is on.
(Only when the “ENGINE
START STOP” switch is in
IGNITION ON mode.)
Airbag manual on-off
switch

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1-7. Safety information
IS F_EEInsert the mechanical key into
the cylinder and rotate to the
“OFF” position.
The “OFF” indicator turns on.
(Only when the “ENGINE
START STOP” switch is in
IGNITION ON mode.)
“PASSENGER AIRBAG” indicator information
If any of the following problems occurs, it is possible that there is a mal-
function in the system. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Neither “ON” nor “OFF” comes on.
The indicator does not change when the airbag manual on-off switch is
switched to “ON” or “OFF”.
CAUTION
When installing a child restraint system
For safety reasons, always install the child restraint system in a rear seat. In
the event that the rear seat cannot be used, the front seat can be used as long
as the airbag manual on-off system is set to off.
If the airbag manual on-off system is left on, the strong impact of the airbag
deployment (inflation) may cause serious injury or even death.
When a child restraint system is not installed on the front passenger seat
Ensure that the airbag manual on-off system is set to on.
If it is left off, the airbag may not deploy in the event of an accident, which
may result in serious injury or even death.

2When driving
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2-1. Driving procedures
Driving the vehicle........... 136
Engine (ignition) switch... 145
Automatic transmission ... 149
Turn signal lever .............. 158
Parking brake ................... 159
Horn ................................. 160
2-2. Instrument cluster
Gauges and meters ........... 161
Indicators and warning
lights .............................. 164
Multi-information display 167
2-3. Operating the lights and
windshield wipers
Headlight switch.............. 172
Fog light switch ............... 175
Windshield wipers and
washer ............................ 176
Headlight cleaner switch .. 1792-4. Using other driving
systems
Cruise control .................. 180
Dynamic radar cruise
control ............................ 184
Lexus parking
assist-sensor ................... 199
Driving assist systems ..... 205
PCS (Pre-Crash Safety
system)............................ 211
2-5. Driving information
Cargo and luggage ........... 220
Winter driving tips ........... 222
Trailer towing .................. 225