brake light Lexus GS450h 2010 Using The Audio System / LEXUS 2010 GS450H (OM30C81U) Owner's Manual

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
FuseAmpereCircuit
10ECU-IG LH10
VGRS, EPS, electronically con-
trolled brake system, yaw rate & G
sensor, dynamic radar cruise control
system, rear view monitor system,
moon roof
11PA N E L7. 5
Steering switches, distance control
switch, audio system, glove box light,
switch illumination, cigarette lighter,
shift lever light, touch screen, rear
personal lights
12S/ROOF25Moon roof
13FUEL OPN10Fuel lid opener
14LH-B10
Multiport fuel injection system/
sequential multiport fuel injection
system
15TRK OPN10Trunk opener
16TV7. 5Touch screen, rear view monitor sys-
tem
17A/C7. 5Air conditioning system
18FR P/SEAT LH30Po w e r s e a t

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
FuseAmpereCircuit
7AIR SUS20AV S
8PWR OUTLET15Po w e r o u t l e t
9CIG15Cigarette lighter
10ACC7. 5
Audio system, smart access system
with push-button start, touch screen,
rear view monitor system
11IGN10
Smart access system with push-but-
ton start, SRS airbag system, stop-
lights, hybrid system, steering lock
system, electronically controlled
brake system, front passenger occu-
pant classification system ECU
12GAUGE7. 5Gauges and meters
13STR LOCK25Steering lock system
14SECURITY7. 5Smart access system with push-but-
ton start
15TI & TE20Tilt and telescopic steering
16AM17. 5
17STOP SW7. 5Stoplights, shift lock system
18OBD7. 5On-board diagnosis system
19FR P/SEAT RH30Po w e r s e a t

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GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
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. 5 4 9
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.

5
When trouble arises
535
5-2. Steps to take in an emergency
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Have the vehicle inspected immediately.
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.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Malfunction indicator lamp
Malfunction in:
• The emission control system;
• The electronic engine control system;
• The hybrid system;
• The electronic throttle control system; or
• The transmission control system.
SRS warning light
Malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(U.S.A.)
(Canada)
ABS warning light
Malfunction in:
•The ABS; or
• The brake assist system.
ECB (Electronically controlled brake system) warning light
Malfunction in the electronically controlled brake system.
Electric power steering system warning light
Malfunction in the EPS.
“PCS” warning light (if equipped)
Malfunction in the pre-collision system.

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5-2. Steps to take in an emergency
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “POWER” switch is turned to ON mode, have it checked by your Lexus
dealer.
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation
pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Check the tires. If the tire is
flat, change to the spare tire and have the flat tire repaired by the nearest
Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropriate speed as soon as possible. Do not drive
over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure
adjustment, it is probable that you have a flat tire. Have the tire replaced by
the nearest Lexus dealer.
• Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

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GS_HV_U (OM30C81U)
January 28, 2010 10:21 am
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/CAir Conditioning
ABSAnti-Lock Brake System
AFSAdaptive Front-lighting System
ALRAutomatic Locking Retractor
CRSChild Restraint System
DISPDisplay
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
Enhanced VSCEnhanced Vehicle Stability Control
EPSElectric Power Steering
GAWRGross Axle Weight Ratings
GPSGlobal Positioning System
I/MEmission inspection and maintenance
INFOInformation
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
MMTMethylcy clopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics

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GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Alphabetical index
Alphabetical index
A/C ............................................................259
ABS.............................................................. 214
ACCESSORY mode ............................151
Active stabilizer suspension 
system...................................................... 214
Adaptive variable 
suspension system ............................. 213
Air conditioning system
Air conditioning filter .........................491
Automatic air conditioning 
system .................................................. 259
Airbags
Airbag operating conditions........... 110
Airbag precautions for 
your child................................................114
Airbag warning light ........................535
Curtain shield airbag 
precautions ........................................... 117
General airbag precautions ............114
Locations of airbags...........................107
Modification and disposal of 
airbags .................................................... 118
Proper driving posture .................... 105
Side airbag precautions .....................114
Side and curtain shield airbags 
operating conditions ....................... 110
SRS airbags ............................................107Alarm ............................................................ 101
Antenna .................................................... 279
Anti-lock brake system ........................214
Armrest ......................................................415
Ashtrays..................................................... 410
Audio input................................................341
Audio system
Antenna................................................... 279
Audio input............................................. 341
AUX port ................................................ 341
Bluetooth
® audio ............................... 321
CD player/changer ......................... 282
DVD information ................................ 310
DVD player/changer ......................293
DVD video/audio..............................293
iPod
®.......................................................329
MP3/WMA disc............................... 289
Optimal use ......................................... 339
Portable music player ....................... 341
Radio ........................................................ 273
Steering switches ...............................342
USB memory .......................................329
Video CD ............................................. 307
Automatic headlight leveling 
system ...................................................... 173
Automatic light control system.......... 171
AUX port...................................................341
A

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Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Back-up lights
Wattage ................................................. 597
Battery
12 volt battery ...................................... 470
Checking ............................................... 470
Hybrid battery 
(Traction battery) .............................. 28
If the 12 volt battery is 
discharged ........................................ 578
Preparing and checking 
before winter .................................... 233
Bluetooth
® audio ................................... 321
Bluetooth® phone ............................... 345
Brake
Fluid .......................................................... 468
Parking brake ........................................159
Brake assist ............................................... 214
Care
Exterior ....................................................442
Interior..................................................... 445
Seat belts ............................................... 446
Cargo capacity ..................................... 228
Cargo hooks ............................................ 421
CD player/changer ............................ 282
Chains........................................................234
Child-protectors ......................................56
Child restraint system
Definition.................................................. 124
Installation................................................ 128
Installing CRS with lower 
anchors ................................................. 129
Installing CRS with seatbelts ...........131
Installing CRS with top straps .......135Child safety
Airbag precautions .............................. 114
Battery precautions ............. 472, 580
Child restraint system ........................124
Child-protectors ...................................56
How your child should wear 
the seatbelt............................................ 78
Installing child restraints................... 128
Moon roof precautions...................... 93
Power window lock switch .............. 87
Power window precautions ............89
Removed electronic key battery 
precautions....................................... 495
Seat belt comfort guide ..................... 76
Seat belt precautions .......................... 79
Seat heater precautions.................. 414
Trunk precautions................................. 62
Cigarette lighter....................................... 411
Cleaning
Exterior.................................................... 442
Interior .....................................................445
Seat belts ................................................446
Clock ........................................................ 408
Coin holder .............................................403
Compass .................................................. 429
Condenser ..............................................468
Console box ............................................ 401
Cooling system
Engine overheating............................ 581
Cruise control
Cruise control......................................... 181
Dynamic radar cruise control....... 185
Cup holders ............................................404
Curtain shield airbags.......................... 107
Customizable features ........................ 615
B
C

633
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Engine compartment cover............... 461
Engine coolant temperature 
gauge ........................................................ 161
Engine/power control unit coolant
Capacity................................................. 593
Checking ............................................... 466
Preparing and checking 
before winter .................................... 233
Engine oil
Capacity...................................................591
Checking ............................................... 462
Preparing and checking 
before winter .................................... 233
Engine oil maintenance data ............464
Enhanced vehicle stability 
control .................................................... 214
Event data recorder............................ 532
First-aid kit storage belt....................... 421
Floor mats.................................................. 419
Fluid
Brake ....................................................... 468
Washer ....................................................474
Fog lights
Switch ........................................................ 174
Wattage ................................................. 597
Foot light .................................................. 395
Front passenger occupant 
classification system ........................... 119
Front passenger’s seat belt 
reminder light ......................................537
Front seats
Adjustment .............................................. 65
Driver’s seat position memory .......67
Front turn signal lights
Wattage ................................................. 597Fuel
Capacity ................................................ 590
Fuel gauge................................................ 161
Gas station information ..................644
Information ........................................... 598
Refueling.................................................... 94
Messages .............................................. 554
Fuel door ..................................................... 94
Fuel filler door ........................................... 94
Fuses .......................................................... 496
Garage door opener .......................... 423
Gas station information...................... 644
Gauges ........................................................ 161
Glove box ............................................... 400
Hands-free system
(for cellular phone) ..........................345
Head restraints ......................................... 72
Headlight aim ............................................511
Headlight cleaner .................................. 180
Headlights
Adaptive front lighting system....... 172
Discharge headlights 
precautions....................................... 520
Replacing light bulbs ......................... 514
Switch.......................................................... 171
Wattage ..................................................597
Heaters
Seat heaters ........................................... 413
Side mirror............................................ 268
Hill-start assist control ......................... 214
Hood .......................................................... 457
Hooks
Cargo ........................................................421
Shopping bag ........................................421
F
G
H

635
Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Mirrors
Inside rear view mirror ...................... 83
Side mirror heater ............................. 268
Side mirrors............................................. 85
Vanity mirrors ..................................... 407
Moon roof .................................................. 90
MP3 disc ................................................. 289
Multi-information display....................168
Noise from under the vehicle .............. 18
Odometer .................................................. 161
Oil
Engine oil ............................................... 462
Opener
Fuel filler door .........................................94
Hood ....................................................... 457
Trunk........................................................... 60
Outer foot lights ................................... 395
Outside rear view mirrors
Adjusting and folding ......................... 85
Mirror position memory ....................67
Outside temperature 
display .................................................... 409
Overhead console .............................. 402
Overheating, Engine ............................581Parking brake .......................................... 159
Parking lights
Replacing light bulbs ......................... 514
Switch.......................................................... 171
Wattage ..................................................597
Personal lights ........................................ 397
Portable music player .......................... 341
Power meter .............................................. 161
Power outlet............................................. 412
Power windows ........................................ 87
Power (ignition) switch........................ 150
Pre-collision system...............................221
Radar cruise control ............................. 185
Radiator ....................................................468
Radio .......................................................... 273
Radio data system ................................ 275
Rear sunshade ........................................ 416
Rear turn signal lights
Replacing light bulbs ......................... 514
Wattage ..................................................597
Rear view monitor system.................. 210
Rear window defogger ......................268
Replacing
Electronic key battery ......................494
Fuses........................................................ 496
Light bulbs .............................................. 514
Reporting safety defects for 
U.S. owners .......................................... 624
N
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