2013 Lexus GS300h horn

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GS450h_300h_OM_OM30D53E_(EE)Power windows ................. 215
Moon roof ......................... 218
4-1. Before driving
Driving the vehicle ............ 224
Cargo and luggage............. 235
Trailer towing ((vehicles with-
out towing package))....... 236
Trailer towing (vehicles with
towing package))..............237
4-2. Driving procedures
Power (ignition) switch ..... 246
EV drive mode .................. 253
Hybrid transmission .......... 256
Turn signal lever ............... 264
Parking brake .................... 266
Brake Hold ........................ 269
Horn .................................. 271
4-3. Operating the lights and wipers
Headlight switch ............... 272
Automatic High Beam ...... 277
Fog light switch................. 283
Windshield wipers and
washer...............................285
Headlight cleaner switch ... 2924-4. Refueling
Opening the fuel tank cap . 293
4-5. Using the driving support sys-
tem
Cruise control .................... 298
Dynamic radar cruise con-
trol......................................302
Dynamic radar cruise control
with full-speed range........318
LKA (Lane-keeping Assist)335
Lexus (parking assist-sen-
sor)....................................345
Lexus (parking assist moni-
tor)....................................358
Driving mode select switch388
Driving assist systems ....... 393
PCS (Pre-Crash Safety sys-
tem)...................................402
BSM (Blind Spot Monitor) 414
• The Blind Spot Monitor
func-
tion.................................420
• The Rear Crossing Traffic
Alert function...................423
Lexus night view ............... 426
4-6. Driving tips
Hybrid vehicle driving tips 432
Winter driving tips ............ 434
4Driving

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4Driving
GS450h_300h_OM_OM30D53E_(EE)4-1. Before driving
Driving the vehicle............ 224
Cargo and luggage ............ 235
Trailer towing (vehicles
without towing package). 236
Trailer towing (vehicles with
towing package) .............. 237
4-2. Driving procedures
Power (ignition) switch ..... 246
EV drive mode .................. 253
Hybrid transmission .......... 256
Turn signal lever ............... 264
Parking brake .................... 266
Brake Hold ........................ 269
Horn .................................. 271
4-3. Operating the lights
and wipers
Headlight switch............... 272
Automatic High Beam ...... 277
Fog light switch ................ 283
Windshield wipers
and washer ...................... 285
Headlight cleaner switch ... 292
4-4. Refueling
Opening the fuel tank cap . 2934-5. Using the driving support
systems
Cruise control ................... 298
Dynamic radar cruise
control ............................. 302
Dynamic radar cruise control
with full-speed range ...... 318
LKA
(Lane-Keeping Assist) .... 335
Lexus
parking assist-sensor....... 345
Lexus
parking assist monitor..... 358
Driving mode select
switch.............................. 388
Driving assist systems ...... 393
PCS (Pre-Crash
Safety system) ................ 402
BSM (Blind Spot Monitor) 414
• The Blind Spot Monitor
function......................... 420
• The Rear Crossing Traffic
Alert function ............... 423
Lexus night view .............. 426
4-6. Driving tips
Hybrid vehicle driving tips 432
Winter driving tips ............ 434

2754-2. Driving procedures
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Driving
GS450h_300h_OM_OM30D53E_(EE)
Horn
To sound the horn, press on or
close to the mark.

3584-5. Using the driving support system
GS450h_300h_OM_OM30D53E_(EE)
Lexus parking assist-sensor display
When an obstacle is detected while the rear view monitor system, is in use,
the warning indicator will appear in the top right of the screen even if the dis-
play setting has been set to off.
Sensor detection information
The sensor’s detection areas are limited to the areas around the vehicle’s
bumpers.
Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where
this may occur are listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve
this problem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen may show an
abnormal display, or obstacles may not be detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing
ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the
vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (lowered suspension etc.) is installed.
• People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of
their shape, signs and other objects may be judged by the sensor to be closer
than they are.

7886-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
8F/PMP25Multiport fuel injection system/sequen-
tial multiport fuel injection system
9H-LP RH-LO20Right-hand headlight (low beam)*1
10H-LP LH-LO20Left-hand headlight (low beam)*1
11BATT FAN
(HV)*210Hybrid battery (traction battery) cooling
fan system
12ABS MAIN 210Brake system
13ABS MAIN 110Brake system
14IGCT NO.130IGCT NO.2, IGCT NO.3, IGCT NO.4,
IGCT NO.5
15ECU-B7.5VGRS, smart entry & start system
16INV W/P10Hybrid system
17ETCS10Multiport fuel injection system/sequen-
tial multiport fuel injection system
18EPS-B10Electric power steering system
19D/C CUT30DOME, MPX-B
20HORN10Horn
21ODS5No circuit
22TV7.5Remote Touch screen
23P/I-B NO.280IG2 MAIN, EFI MAIN, EDU, F/PMP,
A/F
24ABS NO.230Motor relay
25P/I-B NO.150H-LP HI RH, H-LP HI LH, DRL, emer-
gency brake signal
26H-LP LO30H-LP LO RH, H-LP LO LH
27LH J/B-B40Left-hand junction block
28RH J/B-B40Right-hand junction block
29VGRS40VGRS
30OIL PMP60Oil pump
FuseAmpereCircuit

9047-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
The electronic key may not be functioning properly. (P. 911)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
There may be a malfunction in the immobilizer system. (P. 91)
There may be a malfunction in the steering lock system.
The hybrid system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, depending on the type of malfunction, an interim mea-
sure is available to start the hybrid system. (P. 905)
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 913)
The 12-volt battery terminal connections may be loose or cor-
roded.
Reasons for the hybrid system not starting vary depending on the
situation. Check the following and perform the appropriate proce-
dure:
The hybrid system will not start even though the correct start-
ing procedure is being followed. (P. 246)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

905
7 7-2. Steps to take in an emergency
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
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. 913)
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional if the problem cannot be repaired, or if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the power
switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
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960What to do if... (Troubleshooting)
GS450h_300h_OM_OM30D53E_(EE)
Did anyone inside the vehicle open a door or anything
move inside the vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 97)
To stop the alarm, turn the power switch to ON mode or start
the hybrid system.
Is the message displayed on the multi-information dis-
play?
Check the message on the multi-information display.
(P. 834)
When a warning light turns on or a warning message is
displayed, refer to P. 830, 839. An alarm is activated and the horn sounds (if equipped)
A warning buzzer sounds when leaving the vehicle
(vehicles with an entry function)
A warning light turns on or a warning message is displayed