2018 TOYOTA PRIUS brake sensor

PRIUS_OM_OM47B89U_(U)
3734-5. Using the driving support systems
4
Driving
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel wi thout applying any force, directly
confirm the safety of the area to the rear and around the vehicle
slowly back up while adjusting your speed by depressing the
brake pedal.
Depending on the condition of the parking space, steps to may
need to be repeated.
When the vehicle is almost entirely within the target parking spot,
a high-pitched beep is emitted and the stop display is shown on
the display ( →P. 367), stop the vehicle.
This completes the back-in parking assist mode.
● For safety, the buzzer sounds slightly before the vehicle is
completely entered within the target parking spot. Further-
more, at that point, system o peration will also finish. Firmly
hold the steering wheel and slowly back up while adjusting
your speed by depressing the brake pedal to reach the desired
parking spot.
● Be sure to back up while checking the area to the front and
rear of the vehicle directly and by using the mirrors.
■Back-in parking assist mode operating conditions
●In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped).
● In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped). Come to a full stop so that the center of
the parking space is nearly perpendicular to the vehicle, and then operate
the S-APGS switch.
● The function cannot be used when the vehicle speed is approximately
19 mph (30 km/h) or higher.
● The front side sensors and rear side sensors are used to detect parked
vehicles and determine the parking spot. Therefore, when detection is not
possible ( →P. 397), guidance is not issued.
● If there are no parked vehicles, the parking spot cannot be determined.
Therefore, the back-in parking assist mode cannot be operated.
● If unable to detect the environment surrounding the parking space, the
back-in parking assist mode may not be able to operate.
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611
12

374
PRIUS_OM_OM47B89U_(U)
4-5. Using the driving support systems
■Tips for using the back-in parking assist mode ●Depending on the condition of the park-
ing space, if there is not enough space
in front of the vehicle required to perform
the parking operation, the target parking
spot may not be reachable.
Intended parking spot
Wall
Leave a gap of approximately 3.3 ft.
(1 m) from any parked vehicles and
approach the target parking spot. If
the gap between your vehicle and any
parked vehicles is too large, the front
side sensors and rear side sensors
may not be able to detect the parked
vehicles.
Stop so that the center of the target
parking spot is perpendicular to the
vehicle. Furthermore, only push the
S-APGS switch when the vehicle is at
a complete stop.
NOTICE
●If the road surface has any dips or inclines, the target parking spot cannot
be correctly set. Therefore, the vehicle may be parked at an angle or may
deviate from the parking spot. In these cases, do not use the back-in park-
ing assist mode.
● When parking in a narrow space, the vehicle will come close to adjacent
vehicles. If it seems the vehicle may make contact, stop the vehicle by
depressing the brake pedal.
● It may not be possible to detect objects that are low to the ground. Directly
confirm the safety of your surroundings and, if it seems the vehicle may\
make contact with an obstacle, stop the vehicle by depressing the brake
pedal.
● Depending on the surrounding environment, such as other parked vehi-
cles, the vehicle may be parked at an angle or may deviate from the park-
ing spot. Manually adjust vehicle alignment as necessary.
1
2
1
3.3 ft.
(1 m)
2

PRIUS_OM_OM47B89U_(U)
3874-5. Using the driving support systems
4
Driving
When the vehicle has nearly
reached the take-off point, a
high-pitched beep is emitted
and assist control finishes.
From there, grasp the steer-
ing wheel and proceed for-
ward.
■Exit parallel parking assist mode
●During assist control, if the driver determines that they are at a position
where take-off is possible and operates the steering wheel, assist control is
stopped at that position.
● Assist control cannot be used if there are no parked vehicles ahead, or if the
gap between the front of your vehicle and the vehicle parked ahead is too
large.
● When using the exit parallel parking assist mode, the assist mode may be
not be able to operate depending on the surrounding environment.
14
NOTICE
●The detection range of the sensors ( →P. 343) is limited. Directly confirm
the safety of your surroundings, and if there is a possibility of a contact
accident, stop the vehicle by depressing the brake pedal.
● It may not be possible to detect objects that are low to the ground. Directly
confirm the safety of your surroundings and, if it seems the vehicle may\
make contact with an obstacle, stop the vehicle by depressing the brake
pedal.
● When departing for a position from which you can take off, directly confirm
the safety of your surroundings.

PRIUS_OM_OM47B89U_(U)
3974-5. Using the driving support systems
4
Driving
WARNING
●Observe the following precautions, as the sensors may stop functioning
properly which may lead to an accident.
• Do not subject the sensor to strong shocks by hitting it, etc. The sen-
sors may not function properly.
• When using a high-pressure washer to wash the vehicle, do not spray
water directly on the sensors. Equipment may not function properly if
subjected to an impact from strong water pressure. If the vehicle
bumper strikes something, equipment may not operate properly due to
a sensor malfunction. Have the vehicle inspected at your Toyota dealer.
● In the following situations, the sensors may not operate normally and may
lead to an accident. Drive carefully.
• Obstacles cannot be detected in the side areas until a scan of the side
areas is completed. ( →P. 345)
• Even after the scan of the side areas is completed, obstacles such as other vehicles, people or animals that approach from the sides cannot
be detected.
• The sensor is frozen (if it thaws, the system returns to normal). A warning message may display at particularly low temperatures due to
the sensor freezing and it may not detect parked vehicles.
• The sensor is blocked by someone’s hand.
• The vehicle is tilted a large amount.
• The temperature is extremely hot or cold.
• The vehicle is driven on undulating r oads, slopes, gravel roads, in areas
with tall grass, etc.
• An ultrasonic wave source is nearby, such as the horn or sensors of another vehicle, a motorcycle engine or the air brake of a large vehicle.
• Heavy rain or a water strikes the vehicle.
• The angle of the sensor may be deviated when assist control starts even if there is a parked vehicle in the target parking spot. Have the
vehicle inspected at your Toyota dealer.
• Do not install any accessories within the sensor detection range.

6748-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Red/yellow)
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
→ Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes or
illuminates)
(If equipped)
PCS warning light
Indicates a malfunction in the PCS (Pre-Collision System)
or that the system is temporarily unavailable due to the
vehicle being extremely hot/cold, or dirt around a front
sensor, etc.
→ Follow the instructions displayed on the multi-infor-
mation display. (→ P. 292, 673)
If the PCS (Pre-Collision Syst em) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
→ P. 292
Slip indicator light
Indicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
→ Have the vehicle inspected by your Toyota dealer
immediately.
The light will flash when the ABS, VSC or TRAC system is
operating.
Warning lightWarning light/Details/Actions

802Alphabetical index
PRIUS_OM_OM47B89U_(U)
Alphabetical index
A/C .................................... 516, 526Air conditioning filter ............. 634
Automatic air
conditioning system .... 516, 526
Climate control ...................... 519
Eco score (A/C score)........... 136
Humidity sensor ............ 523, 533
S-FLOW mode .............. 518, 528
ABS (Anti-lock Brake System)...... 408 Function ................................ 408
Warning light ......................... 674
Air conditioning filter .............. 634
Air conditioning system ............................ 516, 526 Air conditioning filter ............. 634
Automatic airconditioning system .... 516, 526
Climate control ...................... 519
Eco score (A/C score)........... 136
Humidity sensor ............ 523, 533
S-FLOW mode .............. 518, 528
Air intake vent ............................ 83
Cleaning................................ 637 Airbags ....................................... 36
Airbag operating conditions .... 44
Airbag precautions for
your child .............................. 39
Airbag warning light .............. 674
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 45
Curtain shield airbag precautions........................... 42
Front passenger occupant
classification syst em ............ 50
General airbag precautions .... 39
Locations of airbags ............... 36
Modification and disposal of airbags ............................. 43
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 41
Side and curtain shield airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 42
SRS airbag instructions for Canadian owners ............... 785
SRS airbags ........................... 36
Anchor brackets ........................ 74
Antenna Radio .................................... 443
Smart key system ................. 182
A

803Alphabetical index
PRIUS_OM_OM47B89U_(U)
Anti-lock brake system (ABS) ...................................... 408
Function ................................ 408
Warning light ......................... 674
Approach warning ................... 313
Armrest ..................................... 565
Assist grips .............................. 566
Audio input............................... 429
Audio system
(Entune Audio) ...................... 425 Antenna ................................ 443
Audio input ............................ 429
AUX port ............................... 460
Basic operations ................... 430
Bluetooth
® audio................... 472
CD player .............................. 444
iPod....................................... 450
MP3/WMA disc ..................... 444
Optimal use........................... 441
Portable music player ........... 429
Radio .................................... 442
Steering wheel audio switches.............................. 428
USB memory ........................ 455
Audio system (Entune Premium Audio with Navigation)
*
Automatic air conditioning system Air conditioning filter ............. 634
Automatic air conditioning system ....... ................. 516, 526
Climate control ...................... 519
Eco score (A/C score)........... 136
Humidity sensor ............ 523, 533
S-FLOW mode .............. 518, 528 Automatic door locking
and unlocking systems ........ 174
Automatic High Beam ............. 253
Automatic light control system.................................... 251
AUX port ................................... 429
Auxiliary boxes ........................ 545
Back door ................................. 177
Back-up lights Replacing light bulbs ............ 657
Wattage ................................ 754
Battery (12-volt battery)
Battery checking ................... 611
If the 12-volt battery is discharged.......................... 729
Preparing and checking before winter ...................... 418
Replacing.............................. 732
Warning light......................... 673
Battery (traction battery) .......... 82
Blind Spot Monitor (BSM) ....... 326
Bluetooth
®............................... 503
Audio system ....... ................. 472
Hands-free system (for cellular phone) ............. 474
Registering/removing a Bluetooth
® device ........... 466
Selecting a Bluetooth®
device ................................. 468
Wireless communication....... 461
B
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

804Alphabetical index
PRIUS_OM_OM47B89U_(U)
Bluetooth® audio ..................... 472
Bluetooth® phone .................... 474
Deleting the call history......... 494
Making a call ......................... 477
Managing the contacts.......... 490
Message function.................. 484
Phone settings ...................... 489
Receiving a call..................... 480
Speaking on the phone ......... 481
Bottle holders .......................... 543
Brake Fluid ...................................... 751
Parking brake........................ 247
Regenerative braking.............. 80
Warning light ......................... 673
Brake assist ............................. 408
Brake Override System ........... 215
Break-in tips ............................. 216
Brightness control Instrument cluster
light control ........................... 94
BSM (Blind Spot Monitor) ....... 326
Care Aluminum wheels.................. 583
Camera sensor ..................... 277
Exterior ................................. 582
Interior................................... 588
Radar sensor ........................ 276
Seat belts .............................. 589
Water-repellent coating......... 583
Cargo capacity ......................... 228
Catch protection function ....... 205 Cargo hooks ............................ 547
CD player.................................. 444
Chains ...................................... 419
Child restraint system............... 58
Fixed with a LATCH
system .......... ..................... ... 71
Fixed with a seat belt .............. 65
Front passenger occupant classification syst em ............ 50
Points to remember ................ 59
Riding with children ................ 57
Types of child restraint system installation
method ................................. 61
Using an anchor bracket ................................. 74
Child safety ................................ 57
12-volt battery precautions ... 612
Airbag precautions.................. 39
Back door precautions .......... 179
Child restraint system ............. 58
How your child should wear the seat belt ................. 31
Installing child restraints ......... 61
Moon roof precautions .......... 211
Power window lock switch .... 204
Power window precautions ... 206
Rear door child-protectors .... 174
Removed key battery precautions......................... 648
Riding with children ................ 57
Seat belt extender precautions........................... 35
Seat belt precautions .............. 70
Seat heater precautions ....... 536
Child-protectors ...................... 174
C