2020 TOYOTA PRIUS C warning

585What to do if... (Troubleshooting)
PRIUS c_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 running) for a period of time.
( P. 194)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 482)
●The parking brake warning light is on
Is the parking brake released? ( P. 207)
Depending on the situation, other types of warning buzzer may also sound.
( P. 480, 488)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 488)
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 480, 488.
The power switch is turned off automatically
(vehicles with a smart key system)
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
(vehicles with a smart key system)
A warning light turns on or a warning message or indicator
is displayed

587
PRIUS c_U
Alphabetical index
Alphabetical index
A/C ............................................ 376
ABS ........................................... 265
Acoustic Vehicle Alerting System ..................................... 77
Air conditioning filter .............. 449
Air conditioning system
Air conditioning filter ............. 449
Automatic air conditioning system ......... ....................... 376
Airbags Airbag operating
conditions ............................. 47
Airbag preca utions for
your child .............................. 42
Airbag warning light .............. 481
Curtain shield airbag operating conditions ............. 47
Curtain shield airbag precautions ........................... 45
Front passenger occupant
classification syst em............. 52
General airbag precautions ........................... 42
Indicators ................................ 52
Knee airbag precautions ......... 42
Locations of airbags................ 39
Modification and disposal of airbags ............... 46
Proper driving posture ........................... 28, 42
Seat cushion airbag precautions ........................... 42
Side airbag operating
conditions ............................. 47
Side airbag precautions .......... 42
SRS airbags............................ 39 Antenna .................................... 299
Anti-lock brake system ........... 265
Assist grips .............................. 396
Audio input .............................. 284
Audio system
*
Antenna ................................ 366
Audio input............................ 284
AUX port ............................... 284
CD player.............................. 300
Cord hook ............................. 284
iPod ...................................... 306
MP3/WMA disc ..................... 300
Optimal use .......................... 297
Portable music
player ................................. 284
Radio .................................... 298
Steering wheel audio switch ................................. 283
Type...................................... 280
USB memory ........................ 311
USB port ............................... 284
Automatic air conditioning system
Air conditioning filter ............. 449
Automatic air conditioning system .......... ...................... 376
Automatic High Beam ............. 246
AUX port ................................... 284
Auxiliary boxes ........................ 390
A
*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.

589Alphabetical index
PRIUS c_U
Child safetyAirbag precautions .................. 42
Child-protectors .................... 131
Child restraint system ............. 59
How your child should
wear the seat belt ................. 34
Installing child restraints ......... 59
Moon roof precautions .......... 169
Power window lock switch .... 163
Power window precautions ... 166
Removed key battery precautions ......................... 453
Seat belt extender precautions ........................... 38
Seat belt precautions .............. 36
Seat heater precautions........ 384
12-volt battery precautions ................. 433, 528
Cleaning Exterior ................................. 400
Interior................................... 403
Seat belts .............................. 406
Clock ......................................... 108
Coat hooks ............................... 395
Condenser ................................ 428
Console box ............................. 389
Cooling system
Hybrid system overheating ... 529
Cord hook................................. 284
Cruise control .......................... 251
Cup holders.............................. 391
Curtain shield airbags ............... 40
Customizable features ............ 560 Daytime running light
system.................................... 210
Defogger Rear window ......................... 378
Side mirrors .......................... 378
Dimension ................................ 536
Dinghy towing.......................... 187
Display Energy flow ........................... 112
Multi-information display ....... 103
Trip information..................... 103
Warning message................. 488
Do-it-yourself maintenance .... 416
Doors Back door ............................. 136
Door lock .............................. 130
Door windows ....................... 163
Rear door child protector ...... 131
Side doors ............................ 127
Side mirrors .......................... 161
Driver’s seat belt reminder light ........................................ 482
Driving
Break-in tips.......................... 174
Correct posture ....................... 28
Procedures ........................... 172
Winter driving tips ................. 274D

590Alphabetical index
PRIUS c_U
Eco drive mode ........................ 203
Electric power steering ........... 265
Electronic keyIf the electronic key does not operate properly ........... 520
Emergency flashers Switch ................................... 468
Emergency, in case of
If a warning buzzer sounds ........................ 480, 488
If a warning light
turns on .............................. 480
If a warning message is displayed ............................ 488
If the electronic key does not operate properly ........... 520
If the hybrid system will
not start .............................. 518
If the vehicle becomes stuck ................................... 533
If the vehicle 12-volt battery is discharged .......... 522
If the vehicle is trapped
in rising water ..................... 471
If you have a flat tire ............ 505
If you lose your keys ............. 122
If you think something is wrong.................................. 479
If your vehicle has to be stopped in an
emergency.......................... 469
If your vehicle needs to be towed ............................. 472
If your vehicle overheats ....... 529 Engine
Compartment ........................ 422
Hood ..................................... 419
How to start the hybrid system ....... ................. 188, 192
Identification number ............ 537
If the hybrid system will not start .............................. 518
Ignition switch ............... 188, 192
Overheating .......................... 529
Power switch ................ 188, 192
Engine coolant Capacity................................ 540
Checking............................... 426
Preparing and checking before winter ...................... 274
Engine oil
Capacity................................ 539
Checking............................... 423
Preparing and checking before winter ...................... 274
Engine/power control unit coolant
Capacity................................ 540
Checking............................... 426
Preparing and checking before winter ...................... 274
EPS ........................................... 265
EV drive mode ......................... 199
Event data recorder................... 11
Exclusive jump starting terminal .................... 522
E

594Alphabetical index
PRIUS c_U
MaintenanceDo-it-yourself
maintenance ....................... 416
Emission inspection and maintenance (I/M)
programs ............................ 415
General maintenance ........... 412
Maintenance data ................. 536
Maintenance requirements ... 409
Meter Instrument panel light
control................................. 101
Meters ..................................... 99
Microphone .............................. 333
Mirrors
Inside rear view mirror .......... 160
Outside rear view mirror defogger ............................. 378
Outside rear view mirrors...... 161
Vanity mirrors........................ 393
Moon roof ................................. 167
MP3 disc ................................... 300
Multi-information display ........ 103
Navigation system
*
Noise from under vehicle............ 8 Odometer ................................. 100
Oil
Engine oil .............................. 539
Opener Back door ............................. 136
Fuel filler door ....................... 221
Hood ..................................... 419
Outside rear view mirrors
Adjusting and folding ............ 161
Defogger ............................... 378
Outside temperature
display.................................... 101
Overheating, Hybrid system.................................... 529
Parking brake........................... 207
Parking lights Replacing light bulbs ............ 460
Switch ................................... 208
Wattage ................................ 544
PCS (Pre-Collision system) .... 231 PCS (Pre-Collision
system) switch...... .............. 234
Warning light......................... 482
Personal lights Switch ................................... 386
Wattage ................................ 544
Power outlet ............................. 394
Power switch ................... 188, 192
Power windows ....................... 163
Pre-Collision system (PCS) .... 231 PCS (Pre-Collision
system) switch...... .............. 234
Warning light......................... 482
M
N
O
P

597Alphabetical index
PRIUS c_U
Stop lightsReplacing light bulbs............. 464
Storage feature ........................ 388
Storage precautions ................ 183
Stuck If the vehicle becomes stuck ................................... 533
Sun visors ................................ 393
Switch
Automatic High Beam switch ................................. 246
Cruise control........................ 251
Eco drive mode switch .......... 203
Emergency flasher switch ..... 468
EV drive mode switch ........... 199
Fog light switch ..................... 212
Hazard light switch................ 468
Headlight switch.................... 208
Ignition switch ............... 188, 192
LDA (Lane Departure Alert) switch ................................. 243
Light switches ....................... 208
PCS (Pre-Collision system) switch ..... ............... 234
Power door lock switch ......... 130
Power switch................. 188, 192
Power window switch............ 163
Rear window wiper and washer switch ..................... 218
Steering wheel audio
switches.............................. 283
VSC OFF switch ................... 266
Window lock switch............... 163
Wiper and washer ......... 214, 218 Tail lights
Replacing light bulbs ............ 464
Switch ................................... 208
Theft deterrent system Immobilizer system .. ............... 88
Theft prevention labels ........... 91
Theft prevention labels ............. 91
Tire inflation pressure............. 444
Tire information Glossary ............................... 555
Size....................................... 551
Tire identification number ..... 550
Uniform tire quality grading ............................... 553
Tires Chains .................................. 275
Checking............................... 435
If you have a flat tire ............. 505
Inflation pressure .................. 543
Inflation pressure sensor ...... 436
Information............................ 548
Replacing.............................. 505
Rotating tires ........................ 435
Size....................................... 543
Snow tires ............................. 276
Spare tire .............................. 505
Tire pressure warning system ....... ................. 436, 483
Tools ......................................... 506
Total load capacity .................. 185
Towing Dinghy towing ....................... 187
Emergency towing ................ 472
Trailer towing ........................ 186T

598Alphabetical index
PRIUS c_U
Toyota Safety Sense C ............ 225Automatic High Beam ........... 246
Front sensor.......................... 226
LDA (Lane Departure Alert) ................................... 241
PCS (Pre-Collision system) ........ 231
TRAC......................................... 265
Traction control ....................... 265
Transmission Hybrid transmission .............. 202
If the shift lever cannot
be shifted from P ................ 204
Trip information ....................... 103
Trip meter ................................... 99
Turn signal lights Replacing light bulbs............. 458
Switch ................................... 206
Wattage ................................ 544
USB memory .................... 284, 311
Vanity mirrors .......................... 393
Vehicle data recordings ............ 10
Vehicle identification number ................................... 537
Vehicle stability control .......... 265
VSC ........................................... 265
VSC OFF switch ....................... 266 Warning buzzers
Brake system ....... ................. 480
Electric power steering system .......... ...................... 481
Key reminder ........................ 499
LDA
(Lane Departure Alert) ....... 241
Master warning ..................... 482
Pre-Collision warning............ 482
Seat belt reminder ................ 482
Warning lights
Anti-lock brake system ......... 481
Brake assist system.............. 481
Brake system ....... ................. 480
Electric power steering system .......... ...................... 481
Front passenger occupant
classification system .......... 481
Low brake fluid ..................... 480
Low fuel level ........................ 482
Low tire inflation pressure..... 483
Malfunction indicator lamp .... 481
Master warning light ............. 482
Parking brake ....................... 481
PCS warning light ................. 482
Pretensioners ....................... 481
Seat belt reminder light......... 482
Slip indicator light ................. 482
SRS airbag system ............... 481
Tire pressure ........................ 483
Tire pressure warning system .......... ...................... 483
U
V
W

599Alphabetical index
PRIUS c_U
Warning messages .................. 488
WasherChecking ............................... 430
Preparing and checking before winter....................... 274
Switch ........................... 214, 218
Washing and waxing ............... 400
Weight Cargo capacity ...................... 185
Load limits............................. 185
Weight................................... 536
Wheels ...................................... 447
Window lock switch ................ 163
Windows Power windows ..................... 163
Rear window defogger .......... 378
Washer ......................... 214, 218
Windshield wipers ................... 214
Wireless remote control key Replacing the key battery ..... 451
Wireless remote control ........ 121
WMA disc ................................. 300