2018 TOYOTA PRIUS brake light

6788-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
*1: Brake system warning buzzer:When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
*2: Low engine oil pressure warning buzzer: A buzzer also sounds continuously for approximately 30 seconds at maxi-
mum in addition to the low engine oil pressure warning light when the
“READY” indicator is illuminated.
*3: Open door warning buzzer: The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
*4: Driver and front passenger’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or
her seat belt is not fastened. Once the power switch is turned to ON mode,
the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph
(20 km/h), the buzzer sounds once. If the seat belt is still unfastened after
24 seconds, the buzzer will sound intermittently for 6 seconds. Then, if the
seat belt is still unfastened, the buzzer will sound in a different tone for 90
more seconds.
The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. The buzzer sounds
once if the vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is
still unfastened after 24 seconds, the buzzer will sound intermittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
*5: Rear passengers’ seat belt warning buzzer:The rear passengers’ seat belt warning buzzer sounds to alert the rear
passengers that his or her seat belt is not fastened. The buzzer sounds
intermittently for 6 seconds after the vehicle reaches a speed of 12 mph
(20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 24 more seconds.
*6: This symbol is displayed on the multi-information display.

6818-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
8
When trouble arises
WARNING
■When the electric power steerin g system warning light comes on
When the light comes on yellow, the assist to the power steering is
restricted. When the light comes on red, the assist to the power steering is
lost and handling operations of the steering wheel become extremely
heavy. When steering wheel operations are heavier than usual, grip the
steering wheel firmly and operate it using more force than usual.
■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●Vehicles with spare tire: If the tire pressure warning light comes on
even after tire inflation pressure adjustment, it is probable that you
have a flat tire. Check the tires. If a tire is flat, change it with the spare
tire and have the flat tire repaired by the nearest Toyota dealer.
●Vehicles with emergency tire puncture repair kit: If the tire pressure
warning light comes on even after ti re inflation pressure adjustment, it
is probable that you have a flat tire . Check the tires. If a tire is flat,
repair the flat tire by using emer gency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

6868-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along with a message
or image shown on the multi-information display.
●“Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( →P. 674)
● “Braking Power Low Visit Your Dealer”:
The brake system warning light (yellow) will come on. ( →P. 673)
● Indicates that a door is not fully closed while the vehicle is stopped.:
The Open door warning light comes on. ( →P. 675)
■ If “Visit Your Dealer” is shown
The system or part shown on the multi-information display is malfunctioning.
Have the vehicle inspected by your Toyota dealer.
■ If a message about an operation is shown
●If a message about an operation of the accelerator pedal or brake pedal is
shown
A warning message about an operation of the brake pedal may be shown
while the driving assist systems such as PCS (Pre-Collision System) (if
equipped) or the dynamic radar cruise control with full-speed range (if
equipped) is operating. If a warning message is shown, be sure to deceler-
ate the vehicle or follow an instruction shown on the multi-information dis-
play.
● A warning message is shown when Drive-Start Control or Intelligent Clear-
ance Sonar (if equipped) operates ( →P. 216, 356). Follow the instructions
on the multi-information display.
● If a message about an operation of the power switch is shown
An instruction for operation of the power switch is shown when the incorrect
procedure for starting the hybrid system is performed or the power switch is
operated incorrectly. Follow the instructions shown on the multi-information
display to operate the power switch again.
● If a message about a shift operation is shown
To prevent the shift position from being selected incorrectly or the vehicle
from moving unexpectedly, the shift position may be changed automatically
(→P. 242) or operating the shift lever or P position switch may be required.
In this case, change the shift position following the instructions on the multi-
information display.
● If a message or image about an open/close state of a part or replenishment
of a consumable is shown
Confirm the part indicated by the multi-information display or a warning light,
and then perform the coping method such as closing the open door or
replenishing a consumable.

7258-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 729)
● One or both of the 12-volt batter y terminals may be disconnected.
( → P. 6 1 1 )
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to star t the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlight s do not turn on, or the horn
does not sound.
Emergency start function
1
2
3

800What to do if... (Troubleshooting)
PRIUS_OM_OM47B89U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (→P. 678)
●The parking brake indicator is on
Is the parking brake released? (→P. 247)
Depending on the situation, other types of warning buzzer may also sound.
( →P. 673, 684)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( →P. 684)
●When a warning light turns on or a warning message is displayed, refer to \
P. 673, 684.
A warning buzzer sounds during driving
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

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