2015 Lexus IS300h horn

1783-4. Adjusting the steering wheel and mirrors
IS300h_EE(OM53D56E)
To sound the horn, press on or close to
the mark.
■The steering wheel can be adjusted when (power type)
The power switch is in ACCESSORY or ON mode
*.
*: If the driver’s seat belt is fastened, the steering wheel can be adjusted regardless ofpower switch mode.
■Automatic adjustment of the steering position (if equipped)
A desired steering position can be entered to memory and recalled automatically by the
driving position memory system. ( →P. 1 6 9 )
■Power easy access system (if equipped)
The steering wheel and driver’s seat move in accordance with power switch mode and
the driver’s seat belt condition. ( →P. 1 6 9 )
Horn
CAUTION
■Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an accident, result-
ing in death or serious injury.
■After adjusting the steering wheel (manual type)
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move suddenly, possibly causing an accident, and
resulting in death or serious injury. Also, the horn may not sound if the steering wheel is
not securely locked.

2814-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D56E)
■Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s front corner
and rear 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 prob- lem.)
• 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 (low ered 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.
●The shape of the obstacle may prevent the sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your vehi- cle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distancemay shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obst acle detection and display. Even at slow
speeds, there is a possibility that the obstacl e will come within the sensor’s detection
areas before the display is shown and the warning beep sounds.
• Thin posts or objects lower than the sensor may not be detected when approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of the audio system or air flow noise of the air conditioning system.
■If a message is displayed on the multi-information display
→ P. 530, 530

5608-2. Steps to take in an emergency
IS300h_EE(OM53D56E)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (→P. 5 6 4 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( →P. 9 0 )
●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 measure is available to start the hybrid sys-
tem. ( →P. 5 6 1 )
One of the following may be the cause of the problem:
●The 12-volt battery terminal connections may be loose or corroded.
●The 12-volt battery may be discharged. ( →P. 5 6 6 )
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. ( →P. 212)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.

5618-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. (→P. 5 6 6 )
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 nor-
mally:
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 he adlights do not turn on, or the horn does not
sound.
Emergency start function
1
2
3
4

606What to do if... (Troubleshooting)
IS300h_EE(OM53D56E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( →P. 1 8 5 )
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
(→ P. 2 1 4 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 5 2 3 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 2 2 7 )
Depending on the situation, other types of warning buzzer may also sound.
( → P. 5 2 1 , 5 2 7 )

●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. 9 6 )
Do one of the following to deactivate or stop the alarm: • Unlock the doors or open the trunk using the entry function or wireless
remote control.
• Start the hybrid system. The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th
e horn sounds (if equipped)

616Alphabetical index
IS300h_EE(OM53D56E)
HooksCargo hooks........................................ 432
Coat hooks ........................................... 439
Retaining hooks (floor mat)............. 34
Horn ............................................................ 178
Hybrid battery (traction battery).......83
Hybrid battery (traction battery) air vents.....................................................84
Hybrid system ........................................... 79 Emergency shut off system.............. 84
Energy monitor/consumption screen.........................121
EV drive mode ..................................... 217
High voltage components ...............83
Hybrid System Indicator ................... 113
Hybrid system precautions.............. 83
Hybrid vehicle driving tips ............320
If the hybrid system will not start ...................................... 560
Overheating ...........................................571
Power (ignition) switch ..................... 212
Starting the hybrid system............... 212
Hybrid System Indicator .......................113
Hybrid transmission .............................. 219 If the shift lever cannot be shifted from P ...................................562
Paddle shift switches .......................... 221
S mode.................................................... 222 Identification
Engine ..................................................... 579
Vehicle.................................................... 579
Ignition switch (power switch) ..........212
Illuminated entry system .................... 426
Immobilizer system................................. 90
Indicators .................................................. 106
Initialization Engine oil maintenance data .......458
Moon roof.................................................191
Multi-information display................... 117
Power windows ...................................186
Tire pressure warning
system.................................................. 468
Inside door handle lights ................... 425
Inside rear view mirror ......................... 179
Instrument panel light control ............ 112
Interior lights........................................... 425 Wattage ................................................ 588
Intrusion sensor and tilt sensor .......... 99
ISOFIX rigid anchors ............................ 69
Jack Positioning the jack .......................... 454
Vehicle-equipped jack................... 476
Jack handle ..............................................476
Jam protection function Moon roof...............................................190
Power window .....................................186I
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