2007 Lexus GS350 alarm

54
1-6. Anti-theft system
Alarm
The system sounds the alarm and flashes the vehicle lights when an attempt
to steal the vehicle is detected.
■ Triggering the alarm
The alarm is triggered in the following situations.
●A lock
ed door or trunk is unlocked or opened in any way other
than using the entry function, wire less remote door lock function
or using the mechanical key. (The doors will lock again automati -
cally)
● The hood is opened while the v
ehicle is locked.
■ Setting the alarm sy
stem
Close the doors, trunk and
hood, and lock all door
s. The
system will be set automatically
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.
● Star
t the engine. (the alarm will be deactivated or stopped after a
few seconds.)

55
1-6. Anti-theft 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
fo
llowing
●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.
■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 deactivates 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.
■Pa n i c m o d e
When is pushed for longer than about
one second, the headlights/tail lights/emer-
gency flashers will flash, the front and rear
interior lights will come on, and an alarm will
sound for about 60 seconds 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.

135
2-4. Using other driving systems
2
When driving
CAUTION
■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 correctl y detect these types of vehicles, the prox-
imity alarm ( P. 466) 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
■Conditions under which the vehicle-to-vehicle distance control may not function
correctly
Apply the brakes as necessary in the foll owing conditions as the radar sensor may
not be able to correctly detect vehicles ahead, and an accident may result.
●When water or snow thrown up by the surrounding vehicles hinders the function-
ing of the sensor
●When your vehicle is pointing upwards (c aused by a heavy load in the trunk etc.)
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
■To ensure the radar sensor functions correctly
Do not do the following to the sensor or grille cover as doing so may cause the sen-
sor not to function correctly and could result in an accident.
●Stick or attach anything to them
●Leave them dirty
●Disassemble, subject them to strong shocks
●Modify or paint them
●Replace them with non-genuine parts

5
When trouble arises
487
5-2. Steps to take in an emergency
Changing engine switch modes and starting the engine
Put the shift lever in “P” and apply the brakes.Touch the Lexus emblem side of
the electr
onic key to the engine
switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
engine switch if any of the doors is
opened and closed while the key is
touched to the switch.
To change engine switch modes: Within 5 seconds of the buzzer
sounding, release the brake peda l and pr
ess the engine switch.
Modes can be changed each time the switch is pressed. (
P. 9 7 ) 
To start the engine: Press the engi ne switch within 5 seconds af
ter
the buzzer sounds, keep the brake pedal depressed.
In the event that the engine still cannot be operated, contact your Lexus
dealer
.
STEP1
STEP2
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stop-
ping the engine
■Replacing the key battery
As the above procedure is the temporary measure, it is recommended that the
el
ectronic key battery be replaced immediately when the battery depletes. ( P.
411 )
STEP3

532
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ........190
ABS (Anti-lock Brake System) ........ 159
Active stabilizer suspension 
system...................................................... 159
Air conditioning system (A/C) Air conditioning filter ....................... 407
Automatic air conditioning 
system ................................................... 190
Airbags Airbag operating conditions........... 63
Airbag precautions for your 
child.......................................................... 67
Airbag warning light ........................ 450
Curtain shield airbag 
precautions .......................................... 70
Front passenger occupant 
classification system.......................... 72
General airbag precautions ........... 67
Locations of airbags............................ 59
Modification and disposal of 
airbags ...................................................... 71
Side airbag precautions .................... 67
Side and curtain shield airbags 
operating conditions ....................... 63
SRS airbags ............................................. 59
Alarm ............................................................ 54
Antenna ................................................... 208
Armrest ..................................................... 327
Ashtrays .................................................... 320
Audio system Antenna .................................................. 208
Cassette player....................................... 211
CD player/changer ........................... 216
DVD information ............................... 253
DVD player/changer...................... 233
DVD video/audio ............................. 236
MP3/WMA disc ............................... 224Optimal use .........................................
258
Radio ....................................................... 202
Steering switches ............................... 262
Video CD .............................................. 249
Automatic headlight leveling 
system ....................................................... 118
Automatic light control system.......... 116
AVS (Adaptive Variable 
Suspension System) .......................... 158
BA (Brake Assist).................................. 159
Back-up lights Wattage ................................................. 508
Battery Checking............................................... 387
If the vehicle battery is 
discharged .........................................492
Preparing and checking 
before winter.......................................172
Bluetooth
®..............................................265
Brake Fluid .......................................................... 386
Parking brake........................................ 105
Care Exterior ................................................... 358
Interior..................................................... 360
Seat belts ................................................. 361
Cargo capacity....................................... 168
Cargo hooks ............................................ 331
CD player/changer............................. 233
Chains ......................................................... 174
Child-protectors........................................ 18
Child restraint system (CRS)
Definition ................................................... 78
Installation .................................................. 81
A
B
C

537
Alphabetical index
Reminder light.....................................452
Seat belt extenders .............................. 36
Seat belt pretensioners....................... 34
Seat heaters................................. 323, 325
Seat ventilators...................................... 325
Seating capacity ....................................... 171
Seats Child seats/child restraint 
system installation ............................... 81
Cleaning ................................................ 360
Driving position memory .................. 27
Head restraint ........................................ 30
Properly sitting in the seat................. 57
Seat adjustment ...................................... 25
Seat adjustment precautions ........... 25
Seat heaters.............................. 323, 325
Ventilated seats .................................. 325
Service reminder indicators ................ 111
Shift lever If the shift lever cannot be 
shifted from P ................................... 487
Transmission ......................................... 100
Shift lock system .................................... 487
Shopping bag hooks ............................. 331
Side airbags ............................................... 59
Side marker lights Switch .......................................................... 116
Side mirror Adjusting and folding ........................... 41
Driving position memory .................. 27
Smart access system with 
push-button start Antenna location ...................................... 6
Entry function ............................................. 4
Starting the hybrid system ................ 97
Spare tire Inflation pressure ............................... 506Spare tire ................................................
477
Spark plug................................................ 502
Specifications ......................................... 498
Speedometer .......................................... 106
Steering wheel Adjustment ............................................... 39
Audio switches.................................... 262
Driving position memory .................. 27
Storage compartment ......................... 313
Storage feature....................................... 310
Stuck If your vehicle becomes stuck .... 499
Sun visors .................................................. 316
Switch Fog light switch ...................................... 119
Lexus link system switches............ 343
Light switches ......................................... 116
Mode select switch .............................. 101
Power door lock switch ...................... 17
Power switch........................................... 97
Power window switch ........................ 43
Window lock switch............................ 43
Wipers and washer switch ............ 120
Tail lights Switch.......................................................... 116
Theft deterrent system Alarm........................................................... 54
Engine immobilizer system.............. 52
Theft prevention labels .......................... 56
Tire inflation pressure ......................... 506
Tire information Glossary .................................................. 519
Size ............................................................. 516
Tire identification number............... 514
Uniform tire quality grading ........... 517
T

540
What to do if...
What to do if...
A tire puncturesP. 4 74 /476If you have a flat tire
The engine does not start
P. 5 2Engine immobilizer system
P. 4 8 6If the engine will not start
P. 4 9 2If the battery is discharged
The shift lever cannot be 
moved outP. 4 8 7If 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 9 6If your vehicle overheats
The key is lostP. 4 8 8If you lose your keys
The battery runs outP. 4 9 2If the battery is discharged
The doors cannot be lockedP. 1 7Doors
The horn begins to soundP. 5 4Alarm
The vehicle is stuck in mud or
sandP. 4 9 9If the vehicle becomes stuck