2010 Lexus GS350 warning lights

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2-4. Using other driving systems
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Conditions that may trigger the system even if there is no danger of collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
●When a grade separation/interchange, sign, billboard, or other structure
appears to be directly in the vehicle’s line of travel
●When an extreme change in vehicle height occurs
●When there is an abnormality in the radar sensor
●When climbing a steep hill causes an overhead billboard or other metallic struc-
ture to appear directly in the vehicle’s line of travel
When the system is activated in the situations described above there is also a possi-
bility that the seat belts will retract quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (P. 535, 545)

534
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
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 vehicle in a safe place and contact your Lexus
dealer.
*1: Parking brake engaged warning buzzer:
P. 549
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*1
•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.
Warning lightWarning light/Details
Charging system warning light
Malfunction in the vehicle’s charging system.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

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5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■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
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield and rear side airbag sensors
●The side and curtain shield airbag sensors
●The front passenger occupant classification ECU
●“AIR BAG ON” and “AIR BAG OFF” indicator lights
●The pressure sensor
●The belt tension sensor
●The seat belt buckle switches
●The driver’s seat position sensor
●The inflators
●The warning light
●The interconnecting wiring and power sources

544
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Have the vehicle inspected immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure 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.
Wa r n i n g m e s s a g eDetails
Malfunction in the automatic headlight leveling sys-
tem.
Malfunction in the rear lights system.
(Flashing)
Malfunction in the steering lock system.

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Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Daytime running light system ........... 158
Defogger
Rear window ........................................ 255
Side mirror ............................................ 255
Dimension ............................................... 586
Dinghy towing ........................................ 225
Display
Multi-information display.................154
Touch screen ....................................... 228
Trip information ................................... 155
Warning message............................. 543
Do-it-yourself maintenance ............. 442
Door courtesy lights ............................382
Door pocket............................................ 392
Doors
Door lock...................................29, 41, 43
Rear door child protector ................ 44
Driver’s seat belt reminder light .....536
Driver’s seat position memory ...........55
Driving
Correct posture ...................................... 91
Procedures ............................................. 126
DVD player/changer......................... 280
Electric power steering ..................... 200
Electronic key
If the electronic key does 
not operate properly ...................... 571
Replacing battery .............................. 482Emergency, in case of
If a warning light turns on .............. 534
If a warning message is 
displayed ............................................ 543
If the electronic key does 
not operate properly ..................... 571
If the engine will not 
start .......................................................568
If the shift lever cannot be 
shifted from “P” ............................... 569
If the 12 volt battery is 
discharged ........................................574
If you have a flat tire ........... 556, 566
If you lose your keys ........................ 570
If you think something is 
wrong .................................................. 530
If your vehicle becomes stuck ......581
If your vehicle has to be stopped 
in an emergency ............................ 583
If your vehicle needs to be 
towed ................................................... 520
If your vehicle overheats................ 578
Engine
ACCESSORY mode....................... 136
Compartment ..................................... 448
Engine (ignition) switch.................... 135
Hood ....................................................... 445
How to start the engine ................... 135
If the engine will not start ...............568
Overheating ........................................ 578
Engine compartment cover ............. 450
Engine coolant temperature 
gauge ....................................................... 147D
E

638
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Seat heaters/ventilators...................... 401
Seating capacity ..................................... 218
Seats
Adjustment............................................... 53
Adjustment precautions .................... 54
Child seats/child restraint 
system installation ..............................114
Cleaning................................................. 433
Driver’s seat position memory....... 55
Head restraint......................................... 60
Properly sitting in the seat .................. 91
Seat heaters ......................................... 400
Service reminder indicators ...............151
Shift lever
Automatic transmission....................139
If the shift lever cannot be 
shifted from “P”................................569
Shift lock system ....................................569
Shopping bag hooks........................... 408
Side airbags................................................ 93
Side marker lights
Switch ........................................................ 157
Side mirror
Adjusting and folding ..........................73
Mirror position memory ................... 55
Smart access system with 
push-button start
Antenna location..................................... 31
Entry function.......................................... 29
Starting the engine ..............................135
Spare tire
Inflation pressure............................... 598
Storage location ................................. 557
Spark plug ................................................594
Specifications ........................................ 586
Speedometer............................................147Steering wheel
Adjustment ...............................................70
Audio switches ....................................329
Steering wheel position 
memory ................................................. 55
Storage compartment ........................ 390
Storage feature .....................................385
Stuck
If your vehicle becomes stuck ......581
Sun visors ................................................. 393
Switch
“ENGINE START STOP” 
switch ..................................................... 135
Fog light switch ....................................160
Ignition switch ....................................... 135
Light switches........................................ 157
Mode select switch ............................ 140
Power door lock switch..................... 43
Power window switch ........................ 75
Tire pressure warning 
reset switch ....................................... 464
Tire pressure 
warning select switch .................. 466
Window lock switch ............................ 75
Wipers and washer switch............... 161
Tachometer .............................................. 147
Tail lights
Switch ........................................................ 157
Theft deterrent system
Alarm...........................................................87
Immobilizer system ............................. 85
Theft prevention labels.......................... 90
Tire inflation pressure .........................598
T

639
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Tire information
Glossary ....................................................611
Size ........................................................... 607
Tire identification number .............606
Uniform Tire Quality Grading ...609
Tires
Chains ..................................................... 220
Checking ............................................... 463
Compact spare tire .......................... 557
If you have a flat tire............. 556, 566
Inflation pressure ...............................598
Information............................................ 604
Replacing............................................... 556
Rotating tires ........................................ 463
Size ...........................................................598
Snow tires............................................... 222
Tire pressure warning system..... 463
Tools .......................................................... 556
Total load capacity................................. 218
Touch screen ......................................... 228
Towing
Dinghy towing..................................... 225
Emergency towing ........................... 522
Trailer towing........................................224
Traction control .................................... 200
Trip meter.................................................. 147
Trunk
Opener...................................................... 48
Trunk light .................................................49
Wattage ................................................ 600
Turn signal lights
Replacing light bulbs ......................... 512
Switch ........................................................ 144
Wattage ................................................ 600Vanity lights
Vanity lights ..........................................394
Wattage ................................................. 600
Vanity mirrors ........................................ 394
Variable gear ratio steering .............. 201
Vehicle dynamics 
integrated management .................. 201
Vehicle identification number .........587
Vehicle load limits ................................. 218
Ventilators .............................................. 400
Warning buzzers
Brake system........................................534
Downshifting ..........................................142
Open door .......................................... 536
Seat belt reminder ............................ 536
Warning lights
Anti-lock brake system .................. 535
Brake system........................................534
Charging system................................534
Electric power steering 
warning light .................................... 535
Electronically 
controlled brake system ............ 535
Low fuel level ...................................... 536
Malfunction indicator lamp .......... 535
Master warning light.........................537
Open door ........................................... 536
Pre-collision system......................... 535
Seat belt reminder light.................. 536
SRS airbags.......................................... 535
Tire pressure warning light ...........537V
W

640
Alphabetical index
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Warning messages
Anti-lock brake system...................535
Brake assist ...........................................535
Charging system ............................... 534
Dynamic radar 
cruise control ...................................546
Engine oil level ....................................549
Engine oil maintenance ................. 550
Engine oil pressure ........................... 543
Headlight ............................................... 544
Hood........................................................548
Intuitive parking 
assist.............................545, 550, 552
Moon roof .............................................549
Open door ...........................................548
Parking brake ......................................549
Pre-collision system ............ 545, 550
Rear lights system.............................. 544
Smart access system with 
push-button start ............................553
Steering lock ...............535, 544, 555
Trunk ........................................................549
VGRS...................................................... 547
Washer fluid .........................................549Washer
Checking................................................462
Preparing and checking 
before winter...................................... 219
Switch .......................................................... 161
Washing and waxing........................... 430
Weight
Cargo capacity .................................... 214
Load limits............................................... 218
Weight .................................................... 586
Wheels .......................................................477
Window glasses ...................................... 43
Window lock switch ............................... 43
Windows
Power windows ..................................... 75
Rear window defogger .................. 255
Washer....................................................... 161
Windshield wipers
Position ......................................................221
Windshield wipers................................ 161
Windshield wiper de-icer ................. 256
Winter driving tips..................................219
Wireless remote control key
Locking/Unlocking................................41
Replacing the battery ...................... 482
WMA disc ............................................... 276