2011 Lexus IS F stop start

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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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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
1
Before driving
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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.

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2-1. Driving procedures
Driving the vehicle
Starting on a steep uphill
Firmly set the parking brake and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Starting off on a hill
Hill-start assist control will operate. (P. 205)
The following procedures should be observed to ensure safe driving.
Starting the engine (P. 146)
Driving
With the brake pedal depressed, shift the shift lever to D.
(P. 150)
Release the parking brake. (P. 160)
Gradually release the brake pedal and gently depress the
accelerator pedal to accelerate the vehicle.
Stopping
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
When the vehicle is stopped for an extended period of time,
shift the shift lever to P or N. (P. 150)
Parking the vehicle
With the shift lever in D, depress the brake pedal.
Set the parking brake. (P. 160)
Shift the shift lever to P. (P. 150)
Press the “ENGINE START STOP” switch to stop the
engine.
Lock the door, making sure that you have the electronic
k
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2-1. Driving procedures
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When driving
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Driving in the rain
Drive carefully when it is raining, because visibility will be reduced, the
windows may become fogged-up, and the road will be slippery.
Drive carefully when it starts to rain, because the road surface will be
especially slippery.
Refrain from high speeds when driving on an expressway in the rain,
because there may be a layer of water between the tires and the road sur-
face, preventing the steering and brakes from operating properly.
Engine speed while driving
In the following conditions, the engine speed may become high while driv-
ing. This is due to automatic up-shifting control or down-shifting implemen-
tation to meet driving conditions. It does not indicate sudden acceleration.
The vehicle is judged to be driving uphill or downhill
When the accelerator pedal is released
Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recom-
mended to observe:
For the first 300 km (186 miles):
Avoid sudden stops.
For the first 1000 km (621 miles):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of
brake system needs bedding-down of the brake shoes periodically or when-
ever the parking brake shoes and/or drum are replaced. Have any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional, perform the bedding down.
Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the avail-
ability of the correct fuel. (P. 4 7 4 )