2007 Lexus GS350 light

435
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
r

eplace it.
● Headlight lo
w beams (high-intensity discharge bulbs)
● F
og lights
●F
ront turn signal lights
●F
ront side marker lights
●Stop
/tail lights
●T
ail lights
●R
ear side marker lights
●High mounted stoplight
● License plate lights
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more inform ation i
n the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
ma
lfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up in side the headlight.
■LED light bulbs
The tail, tail/stop and high mounted stopligh ts co
nsist of a number of LEDs. If any
LEDs burn out, take your vehicle to your Lexus dealer to have the light replaced.
If two or more LEDs in a stoplight burn out, y
our vehicle may not conform to local
laws (SAE).
■High-intensity discharge (HID) headlights
If voltage to the high-intensity discharge bu l
bs is insufficient, the light may not come
on, or may go out temporarily. The high-i ntensity discharge bulbs will come on
when normal power is restored.

436
4-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights. 
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the bulb by
the plastic or metal portion. 
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so may
result in heat damage, fire, or water ente ring the headlight unit. This may damage
the headlights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble lig ht bulbs, connectors, electric circuits
or component parts. 
Doing so may result in serious injury due to electric shock.
■High-intensity discharge (HID) headlights
●Contact your Lexus dealer before replac ing high-intensity discharge headlights
(including light bulbs).
●Do not touch the high-intensity discharge headlight's high voltage socket when
the headlights are turned on. An extremely high voltage of 20000V will be dis-
charged and could result in serious injury or death by electric shock.
■To prevent damage or fire
Make sure bulbs are fully seated and locked.

When trouble arises5
437
5-1. Essential information ........... 438If your vehicle needs to be 
towed.......................................... 438
If you think something is 
wrong .......................................... 445
Fuel pump shut off system ..... 446
Event data recorder ................. 447 5-2. Steps to take in an

emergency............................ 449
If a warning light turns on or a 
warning buzzer sounds............ 449
If a warning message is 
displayed.................................... 455
If you have a flat tire (Vehicles 
with run-flat tires) .................... 472
If you have a flat tire (Vehicles 
with standard tires) ................. 473
If the engine will not start ....... 483
If the shift lever cannot be 
shifted from P........................... 484
If you lose your keys ................. 485
If the electronic key does 
not operate properly ............ 486
If the vehicle battery is  discharged ............................... 488
If your vehicle overheats ........ 492
If the vehicle becomes  stuck ............................................ 495

5
When trouble arises
449
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicl e in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:
 P. 4 6 3
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, bu t then turns off, this does not necessar
-
ily indicate a malfunction in the system.

450
5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Have the vehicle inspected by y our Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lampMalfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The transmission control system.
SRS warning lightMalfunction in:
• The SRS airbag system;
• Front passenger occupant classification system; or
• The seat belt pretensioner system.

5
When trouble arises
451
5-2. Steps to take in an emergency
*1: Electronically Controlled Brake System
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning lightMalfunction in:
•The ABS; or
• The brake assist system.
ECB*1/VSC warning light
Malfunction in:
• The electronically controlled brake system; or
• The VSC.
Electric power steering system warning light Malfunction in the EPS.
Pre-collision system warning light (if equipped)Malfunction in the pre-collision system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light 
(warning buzzer)
*2
A door or the trunk is not
fully closed.
Check that all doors and the
trunk are closed.
Low fuel level warning light
Remaining fuel 
(Approximately 2.6 gal. [10
L, 2.2 Imp.gal.] or less)
Refuel the vehicle.

452
5-2. Steps to take in an emergency
*2: Open door warning buzzer:
P. 4 6 2
*3: Driver's and front passenger’s seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder sounds to alert the driver
and front passenger that his or her seat belt is not fastened. The buzzer sounds
intermittently for 10 seconds after the ve hicle has reached a speed of at lest 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
Driver’s seat belt reminder
light (warning buzzer)
*3
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.
Front passenger’s seat belt
reminder light
(warning buzzer)
*3
Warns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure.Adjust the tire inflation pres-
sure.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system.
Have the system checked by
your Lexus dealer.
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
Take appropriate action in
accordance with the message
displayed on the multi-infor-
mation display.

5
When trouble arises
453
5-2. Steps to take in an emergency
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose? 
If it is, tighten it securely.
The light will go off after taking several driving trips. 
If the light does not go off even after several trips, contact your Lexus dealer as soon
a
s possible.
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield airbag sensors
●The side and curtain shield airbag sensor assemblies
●The driver’s seat position sensor
●Driver’s seat belt buckle switch
●The front passenger occupant classification ECU
●The pressure sensor
●The belt tension sensor
●AIRBAG ON and AIRBAG OFF indicator lights
●Front passenger’s seat belt buckle switch
●The inflators
●The warning light
●The interconnecting wiring and power sources
■Front passenger detection sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger detection sen -
sor may cause the warning light to flash, even if a passenger is not sitting in the seat.