warning light Lexus GS350 2007 Using the hands-free system / LEXUS 2007 GS430/350 (OM30A04U) Owner's Guide

5
When trouble arises
457
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetails
Malfunction in the rear lights system.
Malfunction in the tire pressure warning system.The tire pressure warning light will blink for 1 minute
and then stay on.
(Flashing)
Malfunction in the steering lock system.
(GS430, if equipped)
Malfunction in the active stabilizer suspension sys-
tem.

5
When trouble arises
459
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The system will be disabled in th
e following conditions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters are used.
●If the ID code on the tire pressure warning valves and transmitters is not regis -
tered in the tire pressure warning computer.
●If the tire inflation pressure is more than 73 psi (500 kPa, 5.1 kgf/cm2 or bar).
The system may be disabled in the
following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If the tire pressure warning select switch is set to a different tire setting.
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used.
●If tire chains are used.
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on af
ter blinking for 1 minute frequently
when the engine switch is turned to “IG-ON” mode, have it checked by your Lexus
dealer.
NOTICE
■Precaution when insta lling a different tire
When a tire of a different specification or maker is installed, the tire pressure warn-
ing system may not operate properly.

5
When trouble arises
467
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat an d can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malf unction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacem ent or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pressure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

5
When trouble arises
469
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning massage and light turn off.
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once(Comes on for 8 seconds.)
(Flashing)
The electronic key
is not detected
when attempting
to start the
engine.Confirm the
location of
the elec-
tronic key.
Once3 times
(Flashing)
An open door
other than the
driver's door is
closed while the
electronic key is
outside the detec-
tion range and the
engine switch is in
“ACC” or “IG-
ON” mode.
Confirm the
location of
the elec-
tronic key.

472
5-2. Steps to take in an emergency
If you have a flat tire (Vehicles with run-flat tires)
■In some condition (such as at high temperatures)
You can not continue driving for up to
100 miles (160 km).
■If you cannot distinguish between the standard tires and run-flat tires
Consult your Lexus dealer.
■For the detailed information on run-flat tires
See the tire warranty book.
NOTICE
■When replacing the tires
●Have the tires replaced by the nearest Lexus dealer or authorized tire dealer. The
tire pressure warning valves and transmitters will be affected by the installation or
removal of tires.
●Replace the grommets for the tire pressure warning valves and transmitters as
well.
■To avoid damaging the tire pressu re warning valves and transmitters
Do not use liquid sealants on flat tires.
Take your vehicle to the nearest Lexus dealer or authorized tire dealer as
soon as possible.
■ Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
You can continue driving a vehi-
cle with run-flat tires even if any
tir
e goes flat.
It is able to run for a maximum of
100 miles (160 km) at a speed
below 55 mph (90 km/h) after
the tire pressure warning light
comes on. ( P. 4 5 2 )

474
5-2. Steps to take in an emergency
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily only in an emergency.
●Make sure to check the tire inflatio n pressure of the compact spare tire. 
(  P. 505)
■Tr e a d l i f e
The compact spare tire can be used many times, if necessary. It has tread life of up
to 3000 miles (4

800 km) depending on road conditions and your driving habits.
When treadwear indicato rs appear on the tire, replace the tire. ( P. 3 9 1 )
■When using the compact spare tire
As the spare tire is not equipped with th e
tire pressure warning valve and transmit-
ter, low inflation pressure of the spare tire will not be warned. Also, if you replace the
comp
act spare tire after the tire pressure warning light comes on, the light remains
on.
■ Compact spare tire
The compact tire saves space in your luggage compartment, and its
lighter weight helps to enhance fuel economy and permits easier
installation in case of a flat tire.
The compact spare tire is
designed for tempor
ary emer-
gency use only.

5
When trouble arises
489
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the battery is removed or discharged
The following systems must be initialized.
●Po w e r w i n d o w s (P. 4 3 )
●Variable gear ratio steering (P. 1 5 9 )
●Tire pressure warning system (P. 3 9 3 )
●Intuitive parking assist (P. 1 3 6)
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately five
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the engine s
witch “OFF”.
Maintain the engine speed on th e second v
ehicle and turn the
engine switch to the “IG-ON” mode, then start the vehicle’s
engine.
Once the vehicle’s engine ha s star
ted, remove the jumper
cables in the exact reverse ord er in which they w
ere con-
nected.
Once the engine starts, have the ve hicle check
ed at your Lexus dealer
as soon as possible.
STEP3
STEP4
STEP5
STEP6

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

533
Alphabetical index
Installing CRS with lower 
anchorages .......................................... 86
Installing CRS with seatbelts .......... 82
Installing CRS with top straps ........ 87
Child safety Airbag precautions .............................. 67
Child restraint system ........................ 78
Child-protectors..................................... 18
How your child should wear the seat -
belt............................................................ 36
Installing child restraints ...................... 81
Moon roof ................................................ 48
Power window lock switch .............. 43
Power window precautions............ 45
Removed electronic key battery 
precautions ......................................... 412
Seat belt comfort guide...................... 34
Seat belt precautions........................... 37
Seat heater precautions ..... 323, 325
Trunk............................................................ 24
Cigarette lighter ..................................... 321
Cleaning Exterior ................................................... 358
Interior..................................................... 360
Seat belts ................................................. 361
Clock........................................................... 318
Coin holder .............................................. 313
Compass ................................................. 339
Condenser.............................................. 385
Console box.............................................. 311
Cooling system Engine overheating .......................... 496Cruise control
Cruise control........................................ 124
Dynamic radar cruise control........ 127
Cup holders ............................................. 314
Curtain shield airbags............................ 59
Customizable features ....................... 523
Daytime running light system ............. 117
Defogger Rear window ......................................... 198
Side mirror.............................................. 198
Dimension................................................ 498
Dinghy towing ......................................... 178
Display Multi-informatio n display
..................113
Touch screen ........................................ 180
Trip information ..................................... 114
Warning message ............................ 455
Do-it-yourself maintenance ............. 369
Door courtesy lights ............................ 307
Door pocket............................................. 315
Doors Door lock .................................................... 17
Rear door child protector ................. 18
Driver's seat belt reminder light ..... 452
Driving Correct posture..................................... 57
Procedures .............................................. 90
DVD player/changer.......................... 233
Electronic key Replacing battery.................................. 411
If the electronic key does not 
operate properly ........................... 489
D
E

534
Alphabetical index
Emergency, in case ofIf a warning light turns on .............. 449
If a warning message is 
displayed ............................................455
If the engine will not start ............... 486
If the shift lever cannot be 
shifted from P ................................... 487
If the battery is discharged ........... 492
If you have a flat tire ............. 474, 476
If you lose your keys........................ 488
If you think something is 
wrong ................................................... 445
If your vehicle becomes stuck..... 499
If your vehicle needs to be 
towed ...................................................438
If your vehicle overheats ................ 496
If the electronic key does not 
operate properly ............................489
Engine Compartment ..................................... 376
Hood........................................................ 373
How to start the engine..................... 97
If the engine will not start ............... 486
Overheating......................................... 496
Power switch .......................................... 97
Engine compartment cover ............. 378
Engine coolant temperature 
gauge....................................................... 106
Engine/inverter coolant Capacity ................................................. 502
Checking ............................................... 384
Preparing and checking  before winter ...................................... 172
Engine immobilizer system.................. 52
Engine oil Capacity .................................................. 501
Checking ............................................... 379Preparing and checking

before winter.......................................172
Engine oil maintenance data ........... 382
EPS (Electric Power Steering) ........ 159
Event data recorder ............................ 447
First-aid kit storage belt ....................... 331
Floor mats ................................................ 330
Fluid Brake ....................................................... 386
Washer................................................... 390
Fog lights Switch .......................................................... 119
Wattage ................................................. 508
Foot light .................................................. 307
Front passenger occupant 
classification system .............................72
Front passenger's seat belt 
reminder light ..................................... 452
Front seats Adjustment ............................................... 25
Driving position memory .................. 27
Front turn signal lights Wattage ................................................. 508
Fuel Capacity ................................................ 500
Fuel gauge .............................................. 106
Fuel pump shut off system ............ 446
Gas station information ................. 542
Information ........................................... 509
Refueling .................................................... 49
Fuel filler door ........................................... 49
Fuel pump shut off system................. 446
Fuses ............................................................ 413
F