2017 LEXUS RX300H horn

1903-4. Adjusting the steering wheel and mirrors
RC300h_EE(OM24740E)
When the power switch is turned off,
the steering wheel returns to its stowed
position by moving up and away to
enable easier driver entry and exit.
Turning the power switch to ACCES-
SORY or ON mode will return the steering wheel to the original position.
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.
■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. 183)
■Customization
The auto tilt away function can be changed. (Customizable features: P. 607)
Auto tilt away (power type)
Horn
WARNING
■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, andresulting in death or serious injury. Also, th e horn may not sound if the steering wheel is
not securely locked.

2844-5. Using the driving support systems
RC300h_EE(OM24740E)
■If a message is displayed on the multi-information display
 P. 545
WARNING
■When using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle be ing unable to be driven safely and possibly cause an accident.
●Do not use the sensor at speeds in excess of 10 km/h (6 mph).
●The sensors’ detection areas and reaction times are limited. When moving forward or reversing, check the areas surrounding the vehicle (especially the sides of the vehi-cle) for safety, and drive slowly, using the brake to control the vehicle’s speed.
●Do not install accessories within the sensors’ detection areas.
■Limitations of the sensors
●The detection areas of the sensors are limited to the areas around the vehicle’s front
and rear bumpers.
●Certain vehicle conditions and surrounding environments, such as the following, may affect the ability of the sensors to correctly detect objects. Pay particular attention in
the following situations. Failure to do so may result in the vehicle being driven unsafely, possibly leading to an accident.
• When there is dirt, snow or ice on a sens or (Cleaning the sensor will resolve this
problem.) • When 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 objects may not be detected • When a sensor is covered in any way• When the vehicle is leaning considerably to one side
• When driving on an extremely bumpy road, incline, gravel, or grass • When 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
• When there is another vehicle equipped with parking assist sensor in the vicinity • When the sensor is coated with a sheet of spray or heavy rain• When the vehicle is equipped with a fender pole or wireless antenna
• When a towing eyelet is installed • When a bumper or sensor receives a strong impact• When the vehicle is approaching a tall or curved curb
• When driving in harsh sunlight or intense cold weather • When an object is directly under a bumper• When objects become too close to the sensors
• When a non-genuine Lexus suspension (l owered suspension, etc.) is installed In addition to the situations above, there are instances in which, because of theirshape, signs and other objects may be judged by the sensor to be closer than they
are.

5768-2. Steps to take in an emergency
RC300h_EE(OM24740E)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (P. 580)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 95)
●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. 577)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 582)
●The 12-volt battery terminal connections may be loose or corroded.
( P. 481)
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. 215)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.

5778-2. Steps to take in an emergency
8
When trouble arises
RC300h_EE(OM24740E)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 582)
●One or both of the 12-volt battery terminals may be disconnected. (P. 481)
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.
Do not use this starting procedur e except in case of emergency.
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
1
2
3
4

622What to do if... (Troubleshooting)
RC300h_EE(OM24740E)
●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. 196)
●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. 217)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 539)
●The parking brake indicator is on
Is the parking brake released? ( P. 230)
Depending on the situation, other types of warning buzzer may also sound.
( P. 537, 542)

●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. 102)
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 con-
trol. • 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)

629Alphabetical index
RC300h_EE(OM24740E)
Wattage................................................. 605
Fuel ............................................................. 249
Capacity ................................................ 598
Fuel gauge................................................ 115
Information ........................................... 606
Refueling ................................................ 249
Type .............................................598, 606
Warning light .......................................539
Fuel consumption
Average fuel economy ..................... 124
Current fuel consumption............... 124
Fuel filler door ........................................ 249
If the fuel filler door
cannot be opened ...........................251
Refueling ................................................ 249
Fuel gauge .................................................. 115
Fuses ........................................................... 514
Gauges ........................................................ 115
Glove box................................................ 450
Glove box light ...................................... 450
Hands-free system
(for cellular phone) ........................... 397
Head restraints ....................................... 186
Headlight cleaner................................... 241
Headlights ............................................... 232
Automatic High Beam
system.................................................. 235
Follow me home system................ 233
Light switch............................................232
Replacing light bulbs ....................... 525
Heaters
Air conditioning system ..................432
Heated steering wheel ................... 444
Outside rear view mirrors ............ 438
Seat heaters.......................................... 445
High-voltage components .................. 89
Hill-start assist control ........................ 304
Hood ............................................................ 471
Open ......................................................... 471
Pop Up Hood ........................................ 56
Hooks
Cargo hooks ....................................... 452
Coat hooks........................................... 458
Retaining hooks (floor mat) .............34
Horn ............................................................ 190
Hybrid battery (traction battery) ...... 89
Hybrid battery (traction battery)
air vents .................................................... 90
Hybrid system ........................................... 85
Emergency shut off system ............. 90
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