2015 TOYOTA PRIUS C warning lights

4418-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
If a war ning light tur ns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light in red (warning buzzer)*1
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light in yellow
Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system
 Have the vehicle inspected by your Toyota dealer
immediately.

4508-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
Warning message and warning buzzer list
Warning messageDetails/Actions
Indicates a malfunction in the hybrid systemA buzzer sounds in accordance with the warn-
ing message that is displayed.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates that the high engine coolant tempera-
ture is too high
Immediately stop the vehicle in a safe
place. ( P. 483)
Indicates abnormal engine oil pressure
The warning message is shown if the engine oil
pressure is too low.
A buzzer also sounds.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
(If equipped)
• Indicates a malfunction in the smart key system
• Indicates a malfunction in the steering lock sys-
tem
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the LED headlight sys-
tem If there is a malfunction, the LED headlights do
not turn on. However, depending on the mal-
function, they may turn on.
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(Flashes)
(Flashes)

4548-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)Indicates that the engine switch is turned to the
“ACC” or “LOCK” position (vehicles without a
smart key system) or the “POWER” switch is
turned to ACCESSORY mode or turned off (vehi-
cles with a smart key system) and the driver’s
door is opened while the lights are turned on
A buzzer also sounds.
 Turn the lights off.
Indicates that the EV drive mode is not avail-
able
*2
The reason the EV drive mode is not available
(the vehicle is idling, battery charge is low,
speed is higher than the EV drive mode operat-
ing speed range, accelerator pedal is
depressed too much) may be displayed.
A buzzer also sounds.
 Use the EV drive mode when it becomes
available.
Indicates that the EV drive mode has been auto-
matically canceled
*2
The reason the EV drive mode is not available
(the battery charge is low, speed is higher than
the EV drive mode speed range, accelerator
pedal is depressed too much) may be dis-
played.
A buzzer also sounds.
 Drive the vehicle for a while.
Indicates that the TRAC (Traction Control) sys-
tem has been deactivated
 Turn the TRAC on. ( P. 233)
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
Brake Override System is operating. ( P. 167)
 Release the accelerator or brake pedal.
Warning messageDetails/Actions
(Flashes)
(Flashes 3
times)
(Flashes)

550Alphabetical index
PRIUS c_U (OM52E68U)
Tail lightsReplacing light bulbs............. 427
Switch ................................... 201
Theft deterrent system Immobilizer system ................. 82
Theft prevention labels ........... 84
Theft prevention labels ............. 84
Tire inflation pressure............. 406
Tire information Glossary................................ 509
Size ....................................... 505
Tire identification number ..... 504
Uniform tire quality grading ............................... 507
Tires Chains................................... 242
Checking ............................... 398
If you have a flat tire ............. 462
Inflation pressure .................. 497
Inflation pressure sensor ...... 399
Information ............................ 502
Replacing .............................. 462
Rotating tires......................... 398
Size ....................................... 497
Snow tires ............................. 243
Spare tire .............................. 462
Tire pressure warning system ........................ 398, 444
Tools ......................................... 462
Total load capacity .................. 179
Towing Dinghy towing ....................... 181
Emergency towing ................ 433
Trailer towing ........................ 180 TRAC ........................................ 232
Traction control ....................... 232
Transmission
Hybrid transmission .............. 196
If the shift lever cannot be shifted from P ................ 475
Trip information ......................... 94
Trip meter ................................... 91
Turn signal lights Replacing light bulbs ............ 420
Switch ................................... 199
Wattage ................................ 498
USB memory.................... 250, 277
Vanity mirrors .......................... 357
Vehicle data recordings .............. 9
Vehicle identification number................................... 491
Vehicle Proximity Notification System ................................... 72
Vehicle stability control .......... 232
VSC ........................................... 232
VSC OFF switch....................... 233
T
U
V

551Alphabetical index
PRIUS c_U (OM52E68U)
Warning buzzersBrake system ........................ 441
Electric power steering system ................................ 442
Key reminder ........................ 456
Master warning ..................... 443
Seat belt reminder ................ 443
Warning lights Anti-lock brake system.......... 442
Brake assist system .............. 442
Brake system ........................ 441
Charging system ................... 442
Electric power steering system ................................ 442
Front passenger occupant classification system........... 442
Low brake fluid...................... 441
Low fuel level ........................ 443
Low tire inflation pressure ..... 444
Malfunction indicator lamp .... 442
Master warning light.............. 443
Pretensioners........................ 442
Seat belt reminder light ......... 443
Slip indicator light.................. 442
SRS airbag system ............... 442
Tire pressure......................... 444
Tire pressure warning
system ................................ 444 Warning messages.................. 449
Washer
Checking............................... 393
Preparing and checking before winter ...................... 241
Switch ........................... 207, 211
Washing and waxing ............... 366
Weight Cargo capacity...................... 179
Load limits ............................ 179
Weight .................................. 490
Wheels...................................... 409
Window lock switch ................ 158
Windows Power windows..................... 158
Rear window defogger.......... 342
Washer ......................... 207, 211
Windshield wipers ................... 207
Wireless remote control key Replacing the key battery ..... 413
Wireless remote control ........ 119
WMA disc ................................. 266
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