horn Lexus GS450h 2010 Using The Audio System / LEXUS 2010 GS450H OWNERS MANUAL (OM30C81U)

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GS_HV_U (OM30C81U)
February 1, 2010 10:54 am
2-1. Driving procedures
Driving the vehicle ........................ 140
Power (ignition) switch ............... 150
Transmission ................................... 154
Turn signal lever ............................ 158
Parking brake ................................. 159
Horn.................................................... 160
2-2. Instrument cluster
Gauges and meters ....................... 161
Indicators and warning 
lights................................................. 165
Multi-information display........... 168
2-3. Operating the lights and 
windshield wipers
Headlight switch .............................. 171
Fog light switch .............................. 174
Windshield wipers and 
washer............................................. 175
Headlight cleaner switch ........... 1802-4. Using other driving systems
Cruise control ................................. 181
Dynamic radar cruise 
control............................................. 185
Intuitive parking assist ................. 197
Rear view monitor system ......... 210
AVS (Adaptive Variable 
Suspension System) .................. 213
Driving assist systems.................. 214
PCS 
(Pre-Collision System) ............ 221
2-5. Driving information
Cargo and luggage ..................... 228
Vehicle load limits........................ 232
Winter driving tips ....................... 233
Trailer towing ................................. 238
Dinghy towing ............................... 239
3-1. Using the touch screen
Touch screen ................................. 242
Setting the touch screen ........... 248
2When driving
3Interior features

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GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch P. 171
P. 158
P. 174
Gauges and meters P. 161
Multi-information display P. 168Windshield wipers and
washer switch
P. 175
Power (ignition) switch
P. 150
Parking brake pedal P. 159
Trunk opener main switch
P. 60
Glove box
P. 400
Hood lock release lever P. 457
Trunk opener P. 60
Fuel filler door opener P. 94
Horn P. 160
Pre-collision braking off switch
P. 221

When driving2
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GS_HV_U (OM30C81U)
January 28, 2010 11:27 am
2-1. Driving procedures
Driving the vehicle.................. 140
Power (ignition) switch .......... 150
Transmission.............................. 154
Turn signal lever ....................... 158
Parking brake ........................... 159
Horn ............................................ 160
2-2. Instrument cluster
Gauges and meters ................. 161
Indicators and warning 
lights ......................................... 165
Multi-information display ..... 1682-3. Operating the lights and 
windshield wipers
Headlight switch ....................... 171
Fog light switch ......................... 174
Windshield wipers and 
washer ...................................... 175
Headlight cleaner switch ..... 180
2-4. Using other driving systems
Cruise control........................... 181
Dynamic radar cruise 
control ..................................... 185
Intuitive parking assist ............ 197
Rear view monitor system .... 210
AVS (Adaptive Variable 
Suspension System) ............ 213
Driving assist systems ............ 214
PCS 
(Pre-Collision System) ....... 221
2-5. Driving information
Cargo and luggage ............... 228
Vehicle load limits .................. 232
Winter driving tips ................. 233
Trailer towing .......................... 238
Dinghy towing......................... 239

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2-1. Driving procedures
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Horn
To sound the horn, press on or
close to the mark.

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2-4. Using other driving systems
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When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
●In the following situations, the intuitive parking assist may not function correctly,
possibly leading to an accident.
• There is ice, snow or mud on the sensors. (Wiping the sensors will resolve this
problem.)
• The sensor area is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen may show an abnor-
mal display, or obstacles may not be detected.
• The vehicle angle is especially wide.
• In harsh sunlight or intense cold weather.
• When driving on bumpy, sloped or gravel roads, or over grass.
• If there is something producing ultrasonic waves nearby, such as another
vehicle’s horn, motorcycle engine noise, air braking sound from heavy-duty
vehicles, or another vehicle using the intuitive parking assist.
• In heavy rain, or if water is splashed on the sensors.
• If a commercial fender pole or radio antenna is installed.
• If towing eyelet is installed on your vehicle.
• If moving towards a high curb or a curb corner.
• Objects such as signs may cause the detection distance to shorten.
• The area directly under the bumpers is not detected.
Objects lower than the sensors or thin stakes etc. may be detected initially,
but as they draw closer, they may cease to be detected.
• If obstacles draw too close to the sensor.
■Obstacles that may not be detected correctly
The following obstacles may not be detected.
●Thin objects such as wire, fencing or rope.
●Objects that absorb sound waves, such as cotton or snow.
●Objects with sharp corners.
●Objects where the upper section projects out over the lower section.
●Low objects.
■If the display flashes and a message is displayed
P. 5 5 5
■Warning beep volume and touch screen settings
You can change the warning beep volume etc. (P. 2 5 3 )

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4-3. Do-it-yourself maintenance
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1FR CTRL-B25H-LP HI, HORN
2RELIEF VLV10Fuel system
3ETCS10
Multiport fuel injection system/
sequential multiport fuel injection
system
4H-LP CLN30Headlight cleaner
5STB-AM30Active stabilizer suspension system
6DEICER25
7FR CTRL-AM30FR TAIL, FR FOG, WASH

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4-3. Do-it-yourself maintenance
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
FuseAmpereCircuit
23A/F15Fuel system
24INV W/P10Hybrid system
25IGCT No.120Hybrid system, IGCT No.2, 
IGCT No.3
26FR FOG15Fog light
27FR TAIL10Tail light, rear side marker light
28WA S H20Windshield wipers and washer
29HORN10Horn
30H-LP UPR20Headlight high beam
31DC/DC140Charging system
32RAD FAN60Electric cooling fans
33LH J/B AM80
S/ROOF, FR P/SEAT LH, TV, A/C,
FUEL OPN, FR WIP, H-LP LVL, 
FR S/HTR LH, A/C W/P
34E/G AM60H-LP CLN, FR CTRL-AM, DEICER,
STB AM
35HEATER50Air conditioning system
36DEFOG50Rear window defogger
37ABS230Enhanced VSC, ABS
38RH J/B-AM80
AM1, OBD, STOP SW, TI & TE, 
FR P/SEAT RH, STR LOCK, 
SECURITY, ECU-IG R, RH-IG, 
F S/HTR RH, CIG, PWR OUTLET, 
AIR SUS

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5-2. Steps to take in an emergency
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
If the hybrid system will not start
If the hybrid system will not start even though correct starting procedures
are being followed (
P. 150), consider each of the following points.
■The hybrid system will not start even if you are carrying the cor-
rect electronic key
One of the following may be the cause of the problem.
●The electronic key battery may be discharged. (P. 575)
●There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
●There may be a malfunction in the steering lock system.
●There may be a malfunction in the immobilizer system. (P. 99)
■The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume
One of the following may be the cause of the problem.
●The 12 volt battery may be discharged. (P. 5 7 8 )
●The 12 volt battery terminal connections may be loose or cor-
roded.
■The interior lights and headlights do not turn on, or the horn does
not sound
One of the following may be the cause of the problem.
●One or both of the 12 volt battery terminals may be discon-
nected.
●The 12 volt battery may be discharged. (P. 5 7 8 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

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Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Horn ............................................................ 160
Hybrid system ........................................... 24
Emergency shut off system ............. 29
Energy monitor/consumption 
screen ..................................................... 29
High voltage components ............... 28
Power meter ........................................... 161
Power (ignition) switch.................... 150
Identification
Engine .................................................... 590
Electric motor..................................... 590
Vehicle ................................................... 589
Ignition switch
Power switch ........................................ 150
Illuminated entry system ....................395
I/M test ......................................................453
Immobilizer system ................................. 99
Indicator lights......................................... 165
Initialization
Items to initialize ................................... 621
Inside rear view mirror ..........................83
Instrument panel light control........... 162
Interior lights
Interior lights......................................... 396
Wattage.................................................. 597
Intuitive parking assist .......................... 197
Jack
Positioning a floor jack....................458
Vehicle-equipped jack .................. 560
Jack handle ............................................. 560Keyless entry ............................................. 53
Keys
If the electronic key does 
not operate properly ................... 575
If you lose your keys .........................574
Key number plate..................................36
Keys..............................................................36
Mechanical key ......................................36
Power (ignition) switch ....................150
Wireless remote control key...........53
Lexus Link System................................ 433
Light bulbs
Replacing ................................................ 514
Wattage ................................................. 597
Light sensitive optitron meter............163
Lights
Fog light switch .................................... 174
Headlights switch.................................. 171
Interior lights list ................................. 395
Replacing light bulbs ......................... 514
Turn signal lever...................................158
Vanity lights.......................................... 407
Wattage ................................................. 597
Maintenance
Do-it-yourself maintenance......... 454
General maintenance..................... 450
Maintenance data .............................588
Maintenance requirements.......... 448
Meter
Instrument panel light control ....... 162
Meters......................................................... 161
Micro dust and pollen filter .............. 264
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GS_HV_U (OM30C81U)
February 1, 2010 11:14 am
What to do if...
What to do if...
A tire puncturesP. 5 6 0 /
570If you have a flat tire
The hybrid system does not start
P. 9 9Immobilizer system
P. 5 7 2If the hybrid system will not start
P. 5 7 8If the 12 volt battery is discharged
The shift lever cannot be 
moved outP. 5 7 3If 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. 5 8 1If your vehicle overheats
The key is lostP. 5 74If you lose your keys
The 12 volt battery runs outP. 5 7 8If the 12 volt battery is discharged
The doors cannot be lockedP. 5 5Doors
The horn begins to soundP. 1 0 1Alarm
The vehicle is stuck in mud or
sandP. 5 8 4If the vehicle becomes stuck