2017 Lexus ES300h brake sensor

ES300h_OM_OM33C75U_(U)
2474-5. Using the driving support systems
4
Driving
■The intuitive parking assist can be operated when
●Front center sensors:
• The power switch is in ON mode.
• The shift lever is in a position other than P or R.
• The vehicle speed is less than about 6 mph (10 km/h).
●Front corner sensors:
• The power switch is in ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than about 6 mph (10 km/h).(At any speed when the shift lever is in R)
●Rear corner and rear center sensors:
• The power switch is in ON mode.
• The shift lever is in R.
■Intuitive parking assist display
When an obstacle is detected while the Lexus parking assist monitor is in use, the warn-
ing indicator will appear in the upper part of the screen even if the display setting has
been set to off.
■Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s front corners
and rear bumper.
●Certain vehicle conditions and the surrou nding 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 th e 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 co nsiderably 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.

248
ES300h_OM_OM33C75U_(U)4-5. Using the driving support systems
●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 distance may shorten, or detect ion 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 sens or may not be detected for collision when
approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of audio system or air flow noise of air conditioning system.
■If “Clean Parking Assist Sensor” is di splayed on the multi-information display
A sensor may be dirty or covered with snow or ice. In such cases, if it is removed from the
sensor, the system should return to normal. Also, due to the sensor being frozen at low
temperatures, a malfunction display may appear or an obstacle may not be detected. If
the sensor thaws out, the system should return to normal.
■If “Parking Assist Malfunction” is displayed on the multi-information display
Depending on the malfunction of the sensor, the device may not be working normally.
Have the vehicle inspected by your Lexus dealer.
■Certification
XFor vehicles sold in the U.S.A.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions; (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
XFor vehicles sold in Canada
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
WA R N I N G
■When using the intuitive parking assist
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driv en safely and possibly
cause an accident, resulting in death or serious injury.
●Do not use the sensor at speeds in excess of 6 mph (10 km/h).
●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.

588What to do if... (Troubleshooting)
ES300h_OM_OM33C75U_(U)
●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. 1 7 0 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 5 0 6 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 181)
Depending on the situation, other type s of warning buzzer may also sound.
( → P. 505, 511)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 7 8 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.
●Is the electronic key left inside th e vehicle or the moon roof opened?
Check the message on the multi-information display. ( →P. 511)
●When a warning light turns on or a warning message is displayed, refer to
P. 505, 511. The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activate
d and the horn sounds
A warning buzzer sounds wh en leaving the vehicle
A warning light turns on or a warning message is displayed

590Alphabetical index
ES300h_OM_OM33C75U_(U)
Alphabetical index
A/CAir conditioning filter ........................ 479
Automatic air conditioning system ................................................. 388
Humidity sensor ................................. 397
Micro dust and pollen filter ........................................................393
ABS (Anti-lock Brake System) Function .................................................. 276
Warning light ...................................... 505
Adaptive Front-lighting System
(AFS) ....................................................... 183
AFS (Adaptive Front-lighting
System) ................................................... 183
Air conditioning filter .......................... 479
Air conditioning system Air conditioning filter ........................ 479
Automatic air conditioning system ................................................. 388
Humidity sensor ................................ 397
Micro dust and pollen filter ........................................................393 Airbags
Airbag operating conditions .......... 43
Airbag precautions for your child ....................................... 39
Airbag warning light ....................... 505
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 43
Curtain shield airbag precautions .......................................... 39
Front passenger occupant classification system......................... 46
General airbag precautions ........... 39
Locations of airbags.............................37
Modification and disposal of airbags................................................42
Side airbag operating conditions ............................................. 43
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 43
Side and curtain shield
airbags precautions ......................... 39
SRS airbags ..............................................37
Alarm ............................................................78 Warning buzzer ................................ 505
Anchor brackets.......................................57
Antennas (smart access system with push-button start) .......................121
Anti-lock Brake System (ABS)
Function .................................................. 276
Warning light ...................................... 505
Approach warning (dynamic radar cruise control)........................ 233
Armrest ........................................................411
Assist grip .................................................. 414
Audio input ............................................. 299
A

600Alphabetical index
ES300h_OM_OM33C75U_(U)
Parking assist sensors (intuitive parking assist) ....................241
Parking brake
Operation .................................................181
Parking brake engaged warning buzzer ..................................181
Parking lights
Light switch ............................................ 182
Replacing light bulbs ....................... 495
PCS (Pre-Collision System) Function ................................................. 205
Warning light ...................................... 506
Personal lights......................................... 401
Power control unit .................................... 71
Power control unit coolant
Capacity ................................................ 545
Checking................................................ 457
Preparing and checking before winter ....................................284
Radiator ................................................. 458
Power easy access system ................ 130
Power outlets .......................................... 410
Power steering (Electric Power
Steering system) .................................277Warning light ...................................... 506
Power switch ........................................... 168 Power trunk opener and closer .........114
Power windows
Door lock linked window operation ...........................146
Jam protection function....................145
Operation................................................145
Window lock switch ..........................145
Pre-Collision System (PCS)
Function ..................................................205
Warning light ...................................... 506
Radar cruise control (dynamic radar cruise control).........................226
Radiator.................................................... 458
Radio
*........................................................ 316
RCTA (Rear Cross Traffic Alert)........................................ 268
Rear personal lights .............................. 401
Rear side marker lights Light switch.............................................182
Replacing light bulbs ....................... 495
Rear door sunshades............................ 412
Rear sunshade Operation................................................ 412
Reverse operation feature ..............413
P
R