2019 TOYOTA PRIUS C sensor

2474-5. Toyota Safety Sense C
4
Driving
PRIUS c_U●
In the situations shown below, the system may not be able to accurately
detect surrounding brightness levels. This may cause the low be ams to
remain on or the high beams to cause problems for pedestrians, vehicles
ahead or other parties. In these cases, manually switch between the high
and low beams.
• In bad weather (rain, snow, fog, sandstorms, etc.)
• The windshield is obscured by fog, mist, ice, dirt, etc.
• The windshield is cracked or damaged.
• The front sensor is deformed or dirty.
• The front sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights , tail lights
or fog lights.
• Vehicles ahead have headlights or tail lights that are either switched off,
dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks, etc.).
• When frequently and repeatedly taking curves or driving on a w inding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a co ntainer on a
truck.
• The vehicle’s headlights are damaged or dirty, or are not aime d properly.
• The vehicle is listing or titling due to a flat tire, a traile r being towed, etc.
• The high beam and low beam are repeatedly being switched betwe en in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.

2484-5. Toyota Safety Sense C
PRIUS c_U■
Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Vehicles without a smart key system: Turn the power switch off while the
following conditions are met.
Vehicles with a smart key system: Turn the power switch off whi le the fol-
lowing conditions are met
• T he headlight switch is in .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Vehicles without a smart key system: Turn the power switch to t he “ON”
position.
Vehicles with a smart key system: Turn the power switch to ON m ode.
Within 60 seconds after , repeat pulling the headlight switch l ever to the
original position then pushing it to the high beam position qui ckly 10 times,
then leave the lever in high beam position.
If the sensitivity is changed, the Automatic High Beam indicato r is turn on
and off 3 times.
Automatic High Beam (headlights) may turn on even the vehicle i s stopped.
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3997-1. Maintenance and care
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Maintenance and care
PRIUS c_U■
Aluminum wheels (if equipped)
●Remove any dirt immediately by using a neutral detergent.
● Wash detergent off with water immediately after use.
● To protect the paint from damage, make sure to observe the following pre-
cautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driv-
ing or parking in hot weather
■ Bumpers
Do not scrub with abrasive cleaners.
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components etc. to catch fire.
■ When cleaning the windshield
Installation area of front sensor on windshield:  P. 227
■ Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe unti l it has
cooled sufficiently, as touching a hot exhaust pipe can cause b urns.
NOTICE
■To prevent paint deterioration an d corrosion on the body and compo-
nents (aluminum wheels etc.)
● Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are presen t on the
paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust, iron powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the pai nt surface
● If the paint is chipped or scratched, have it repaired immediat ely.
● To prevent the wheels from corroding, remove any dirt and store in a place
with low humidity when storing the wheels.

4818-2. Steps to take in an emergency
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When trouble arises
PRIUS c_U
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat belt buckle switch, front passenger occu-
pant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indi-
cator light, front passenger’s seat belt buckle switch, seat be lt pretensioners
(front), airbags, interconnecting wiring and power sources. ( P. 41)
■ Front passenger detection senso r, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front pas senger detec-
tion sensor may cause the warning light to flash and the warnin g buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Electric power steering system wa rning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the vol tage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressur e warning reset switch will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural caus es
The tire pressure warning light may come on due to natural caus es such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure w ill turn off the
warning light (afte r a few minutes).
■When a tire is replace d with a spare tire
The compact spare tire is not equipped with a tire pressure war ning valve
and transmitter. If a tire goes flat, the tire pressure warning light will not
turn off even though the flat tire has been replaced with the s pare tire.
Replace the spare tire with the repaired tire and adjust the ti re inflation
pressure. The tire pressure war ning light will go off after a few minutes.

4948-2. Steps to take in an emergency
PRIUS c_U
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
Brake Override System is operating. (P. 171)
 Release the accelerator pedal and depress
the brake pedal.
Indicates that, as the shift lever was shifted while
the accelerator pedal was depressed, Drive-Start
Control was activated. ( P. 171)
A buzzer also sounds.
 Release the accelerator pedal immediately.
Indicates that the accelerator pedal is depressed
with the shift lever in P
 Release the accelerator pedal.
The system is temporarily canceled because the
operating conditions of the front sensor (tempera-
ture, etc.) are not met.
The following systems may be suspended:
• PCS (Pre-Collision system)
• LDA (Lane Departure Alert)
• Automatic High Beam
The system can be operated when the
operating conditions of the front sensor
(temperature, etc.) ar e met. Turn the system
off, wait for a while, and then turn the sys-
tem back on.
The area of the windshield in front of the front
sensor is fogged up or covered with dirt, rain, ice,
snow, etc.
The following systems may be suspended:
• PCS (Pre-Collision system)
• LDA (Lane Departure Alert)
• Automatic High Beam
 Turn the system off, clear the windshield of
dirt, fog, ice, etc. then turn the system back
on. ( P. 226)
Warning messageDetails/Actions
(Flashes)
(Flashes)

589Alphabetical index
PRIUS c_U
Floor mat .................................... 26
FluidBrake .................................... 540
Washer ................................. 428
Fog lights
Replacing light bulbs............. 462
Switch ................................... 210
Front fog lights
Replacing light bulbs............. 462
Switch ................................... 210
Front passenger occupant
classification system .............. 52
Front passenger’s seat belt reminder light ................. 479
Front seats Adjustment ............................ 148
Front sensor............................. 224
Automatic High Beam ........... 224
LDA (Lane Departure Alert)........ 224
PCS (Pre-Collision System)........ 224
Precautions ........................... 225
Front side marker lights Replacing light bulbs............. 463
Switch ................................... 206
Wattage ................................ 542
Front turn signal lights Replacing light bulbs............. 458
Switch ................................... 204
Wattage ................................ 542
Fuel Capacity ................................ 536
Fuel gauge .............................. 97
Information ............................ 543
Refueling............................... 219
Type ...................................... 536
Fuel door .................................. 219
Fuel filler door.......................... 219
Fuses ........................................ 452 Gauges ....................................... 97
Glove box ................................. 387
Hazard lights
Switch ................................... 466
Head restraints Adjusting .............................. 153
Headlights Replacing light bulbs ............ 462
Switch ................................... 206
Heaters Seat heaters ......................... 382
Side mirrors .......................... 376
Hill-start assist control ........... 263
Hood ......................................... 417
Horn .......................................... 156
Hybrid system Emergency shut off system .... 80
Energy monitor/consumption screen ........... 110
High voltage components ....... 79
Hybrid system indicator ........ 108
Power switch ........................ 190
Vehicle Proximity Notification System .............. 75
FG
H

593Alphabetical index
PRIUS c_U
SensorAutomatic High Beam
system ......... ....................... 224
Front sensor.......................... 224
Laser sensor ......................... 224
LDA (Lane Departure Alert)........ 224
Monocular camera sensor .... 224
PCS
(Pre-Collision system) ........ 224
Shift lever
If the shift lever cannot be shifted from P ................ 202
Transmission ........................ 200
Shift lock system ..................... 202
Side airbags ............................... 40
Side marker lights Replacing light bulbs............. 463
Wattage ................................ 542
Side mirror
Adjusting and folding ............ 159
Defogger ............................... 376
Smart key system
Entry function ........................ 139
Starting the hybrid system ....... ................. 186, 190
Spare tire
Inflation pressure .................. 541
Storage location .................... 503
Spark plug ................................ 539
Specifications .......................... 534
Speedometer .............................. 97
Steering
Column lock release ..... 188, 193
Steering wheel Adjustment ............................ 156
Audio switches ...................... 281 Stop lights
Replacing light bulbs ............ 462
Storage feature ........................ 386
Storage precautions................ 181
Stuck If the vehicle becomes stuck ................................... 530
Sun visors ................................ 391
Switch
Automatic High Beam switch ................................. 244
Cruise control ....................... 249
Eco drive mode switch.......... 201
Emergency flasher switch..... 466
EV drive mode switch ........... 197
Fog light switch ..................... 210
Hazard light switch ............... 466
Headlight switch ................... 206
Ignition switch ............... 186, 190
LDA (Lane Departure Alert) switch ................................. 241
Light switches ....................... 206
PCS (Pre-Collision system) switch...... .............. 232
Power door lock switch ......... 128
Power switch ................ 186, 190
Power window switch ........... 161
Rear window wiper and washer switch..................... 216
Steering wheel audio
switches ............................. 281
VSC OFF switch ................... 264
Window lock switch .............. 161
Wiper and washer......... 212, 216
*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.

594Alphabetical index
PRIUS c_U
Tail lightsReplacing light bulbs............. 462
Switch ................................... 206
Theft deterrent system Immobilizer system ................. 86
Theft prevention labels ........... 89
Theft prevention labels ............. 89
Tire inflation pressure ............. 442
Tire information Glossary................................ 553
Size ....................................... 549
Tire identification number ..... 548
Uniform tire quality grading ............................... 551
Tires Chains................................... 273
Checking ............................... 433
If you have a flat tire ............. 502
Inflation pressure .................. 541
Inflation pressure sensor ...... 434
Information ............................ 546
Replacing .............................. 502
Rotating tires......................... 433
Size ....................................... 541
Snow tires ............................. 274
Spare tire .............................. 502
Tire pressure warning system ....... ................. 434, 480
Tools ......................................... 503
Total load capacity .................. 183
Towing Dinghy towing ....................... 185
Emergency towing ................ 469
Trailer towing ........................ 184 Toyota Safety Sense C............ 223
Automatic High Beam ........... 244
Front sensor ......................... 224
LDA (Lane Departure Alert)................................... 239
PCS (Pre-Collision system) ........ 229
TRAC ........................................ 263
Traction control ....................... 263
Transmission Hybrid transmission .............. 200
If the shift lever cannot
be shifted from P ................ 202
Trip information ....................... 101
Trip meter ................................... 97
Turn signal lights Replacing light bulbs ............ 456
Switch ................................... 204
Wattage ................................ 542
USB memory .................... 282, 309
Vanity mirrors .......................... 391
Vehicle data recordings ............ 10
Vehicle identification number ................................... 535
Vehicle Proximity Notification System ................................... 75
Vehicle stability control .......... 263
VSC ........................................... 263
VSC OFF switch....................... 264
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