2008 Lexus IS F alarm

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1-6. Theft deterrent system
Alarm
The system sounds the alarm and flashes lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote door lock function
or mechanical key with the alarm being set.
● The hood is opened with the alarm being set.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors using
the entry function, wireless
remote door lock function or
mechanical key.
The system will be set automati-
cally 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, wireless
remote door lock function or mechanical key.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode. (The alarm will be deactivated or stopped
after a few seconds.)

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1-6. Theft deterrent system
1
Before driving
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
following.
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Pa n i c m o d e
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations.
Stopping the alarm deactiv ates the alarm system.
●A person inside the vehicle opens a door, the trunk or hood.
●The battery is recharged or replaced when the vehicle is locked.
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before de activating the alarm system, the alarm may
be triggered when the battery is reconnected.
When is pushed for longer than about
one second, an alarm will sound for about 60
seconds and the vehicle lights will flash to
deter any person from trying to break into or
damage your vehicle.
To stop the alarm, push any button on the
wireless remote control.

158
2-4. Using other driving systems
CAUTION
■Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set vehicle speed. If au tomatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your vehicle
and vehicles ahead by applying the brakes, etc.
■To avoid inadvertent dynamic radar cruise control activation
Keep the “ON-OFF” button off when not in use.
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise contro l in any of the following situations.
Doing so may result in inappropriate co ntrol of speed and could cause serious or
fatal accident.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as thos e covered with rain, ice or snow
●Where there are sudden changes between sharp up and down gradients
●At entrances to expressways
●When weather conditions are bad enough that they may prevent the sensors
from functioning correctly (heavy rain, fog, snow, sandstorm, etc.)
●Where buzzer can be heard often
■When the radar sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correctly detect these types of vehicles, the prox-
imity alarm ( P. 360) will not be activated, and an accident may result.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving
●Vehicles with small rear ends (tra ilers with no load on board etc.)
●Motorcycles traveling in the same lane

5
When trouble arises
387
5-2. Steps to take in an emergency
Tr u n kTurn the mechanical key clock-
wise to open.
Changing “ENGINE START STOP” switch modes and starting the engine
Shift the shift lever to P and apply the brakes.Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding , release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
( P. 114)
To start the engine: Press th e “ENGINE START STOP” switch
within 10 seconds after the buzz er sounds, keeping the brake
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
STEP3

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Alphabetical index
Alphabetical index
A/C ............................................................. 186
ABS.............................................................. 166
ACCESSORY mode ............................ 114
AFS .............................................................. 140
Adaptive front lighting system ......... 140
Air conditioning filter ........................... 313
Air conditioning systemAir conditioning filter .........................313
Automatic air conditioning system ................................................... 186
Airbags Airbag operating conditions........... 79
Airbag precautions for your child.......................................................... 83
Airbag warning light ..........................351
Curtain shield airbag operating conditions..............................................80
Curtain shield airbag precautions .......................................... 83
Front passenger occupant classification system.........................88
General airbag precautions ........... 83
Locations of airbags............................. 77
Modification and disposal of airbags .................................................... 87
Proper driving po sture ............. 75, 83
Side airbag operating conditions..............................................80
Side airbag precautions .................... 83
SRS airbags .............................................. 77 Alarm .............................................................72
Antenna .................................................... 202
Anti-lock brake system ........................166
Armrest .................................................... 246
Ashtrays.................................................... 239
Audio input.............................................. 220
Audio system
Antenna.................................................. 202
Audio input ........................................... 220
Audio visual input.............................. 220
AUX adapter ...................................... 220
CD player/changer ......................... 205
MP3/WMA disc................................... 211
Optimal use ............................................217
Portable music player ..................... 220
Radio .........................................................198
Steering wheel audio switch...........221
Audio visual input ................................. 220
Automatic air conditioning system ..................................................... 186
Automatic headlight leveling system ....................................................... 141
Automatic light control system.........139
Automatic transmission Automatic transmission .....................118
If the shift lever cannot be shifted from P................................... 384
M mode ....................................................122
AUX adapter ......................................... 220A

446
Alphabetical index
Tachometer..................................................128
Tail lights Switch ........................................................139
Talk switch*
Telephone switch*
Theft deterrent system Alarm ........................................................... 72
Engine immobilizer system ............. 70
Theft prevention labels .......................... 74
Tire inflation pressure .........................307
Tire information Glossary................................................... 417
Size ............................................................. 414
Tire identification number ............... 414
Uniform tire quality grading ...........415
Tires Chains ...................................................... 180
Checking ............................................... 296
If you have a flat tire .......................... 374
Inflation pressure................................ 307
Inflation pressure sensor................ 296
Information.............................................. 412
Replacing ............................................... 374
Rotating tires ......................................... 301
Size ........................................................... 407
Snow tires ............................................... 180
Tools ........................................................... 374
Total load capacity ................................ 179
Towing Dinghy towing ...................................... 183
Emergency towing ...........................340
Trailer towing.........................................182 TRAC ..........................................................166
Traction control.......................................166
Transmission shift switches.......120, 122
Trip meter ................................................. 128
Trunk
Extending a space ............................. 247
Opener ........................................................41
Trunk light Trunk light ................................................. 42
Wattage ................................................. 408
Turn signal lights Replacing light bulbs ....................... 334
Switch ........................................................ 126
Wattage ................................................. 408
Vanity lights Vanity lights...........................................234
Wattage ................................................. 408
Vanity mirrors ........................................ 234
VDIM...........................................................166
Vehicle dynamics integrated management .........................................166
Vehicle identification number......... 399
Vehicle stability control .......................166
Ventilators ............................................... 244
VSC .............................................................166T
V

449
What to do if...
What to do if...
A tire puncturesP. 3 74If you have a flat tire
The engine does not start
P. 3 8 3If the engine will not start
P. 7 0Engine immobilizer system
P. 3 8 9If the vehicle battery is discharged
The shift lever cannot be
moved outP. 3 8 4If 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. 3 9 2If your vehicle overheats
The key is lostP. 3 8 5If you lose your keys
The battery runs outP. 3 8 9If the vehicle battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 3 9 5If the vehicle becomes stuck