2019 TOYOTA PRIUS PRIME warning light

6718-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
The warning lights and warning buzzers operate as follows depending
on the content of the message. If a message indicates the need for
inspection by a dealer, have the vehicle inspected by your Toyota
dealer immediately.
The operation of the warning lights and warning buzzers may dif fer
from those stated. In this case, perform the correction procedu re
according to the displayed message.
*: A buzzer sounds the first time a message is shown on the multi -informa-
tion display.
Messages and warnings
System
warning lightWarning
buzzer
*Warning
Comes onSounds
Indicates an important situation, such
as when a system related to driving is
malfunctioning or that danger may
result if the correction procedure is not
performed
Comes on or flashesSounds
Indicates an important situation, such
as when the systems shown on the
multi-information display may be mal-
functioning
FlashesSounds
Indicates a situation, such as when
damage to the vehicle or danger may
result
Comes onDoes not sound
Indicates a condition, such as mal-
function of electrical components, their
condition, or indicates the need for
maintenance
FlashesDoes not
sound
Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

6728-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(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 wit h a message
or image shown on the multi-information display.
● “Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( P. 661)
● “Braking Power Low Visit Your Dealer”:
The brake system warning light (yellow) will come on. ( P. 660)
● Indicates that a door is not fully closed while the vehicle is stopped.:
The Open door warning light comes on. ( P. 662)
■ 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 bra ke 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 Sys tem) or the
dynamic radar cruise control with full-speed range is operating . If a warning
message is shown, be sure to decelerate the vehicle or follow a n instruction
shown on the multi-information display.
● A warning message is shown when Drive-Start Control, Brake Over ride Sys-
tem or Intelligent Clearance Sonar (if equipped) operates (P. 315, 316,
444). 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 mult i-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 o r the vehicle
from moving unexpectedly, the shift position may be changed aut omatically
( P. 340) or shift operation may be required. In this case, chang e 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 doo r or
replenishing a consumable.

6898-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
■If the tire is inflated to more than the specified air pressure
Disconnect the hose from the valve.
Disconnect the hose from the valv e, remove the air release cap from
the hose and then reconnect the hose.
Turn the compressor switch on and wait for several seconds, and then
turn it off. Check that the air pressure indicator shows the sp ecified air
pressure. ( P. 723)
If the air pressure is under the designated pressure, turn the compres-
sor switch on again and repeat the inflation procedure until th e speci-
fied air pressure is reached.
■The valve of a tire that has been repaired
After a tire is repaired with the emergency tire puncture repai r kit, the
valve should be replaced.
■After a tire is repaired with the emergency tire puncture repai r kit
●The tire pressure warning valve and transmitter should be replaced.
●Even if the tire inflation pressure is at the recommended level, the tire
pressure warning light may come on/flash.
■Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whos e expiry
date has already passed. Otherwise, repairs conducted using the emer-
gency tire puncture repair kit may not be performed properly. Install the air release cap to the end of
the hose and push the protrusion on
the air release cap into the tire valve
to let some air out.
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7058-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
WARNING
■When removing the 12-vo lt battery terminals
Always remove the negative (-) terminal first. If the positive (+) terminal con-
tacts any metal in the surrounding area when the positive (+) terminal is
removed, a spark may occur, leading to a fire in addition to el ectrical shocks
and death or serious injury.
■ Avoiding 12-volt batte ry fires or explosions
Observe the following precautions to prevent accidentally ignit ing the flam-
mable gas that may be emitted from the 12-volt battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the in tended terminal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come in to contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open fla me near
the 12-volt battery.
■ 12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic ele ctrolyte,
while related parts contain lead and lead compounds. Observe th e following
precautions when handling the 12-volt battery:
● When working with the 12-volt battery, always wear safety glass es and
take care not to allow any battery fluids (acid) to come into c ontact with
skin, clothing or the vehicle body.
● Do not lean over the 12-volt battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medica l attention
can be received.
● Always wash your hands after handling the 12-volt battery suppo rt, termi-
nals, and other battery-related parts.
● Do not allow children near the 12-volt battery.

707
PRIUS PRIME_OM_OM47D13U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If your vehicle overheats
■If the high coolant temperature warning light comes on or
flashesStop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect t he
hoses and radiator core (ra diator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
The following may indicate that your vehicle is overheating.
● The high coolant temperature warning light ( P. 662) comes on
or flashes, or a loss of hybrid system power is experienced. (F or
example, the vehicle s peed does not increase.)
● “Hybrid System Overheated” is shown on the multi-information
display.
● Steam comes out from under the hood.
Correction procedures
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770What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47D13U_(U)
●The seat belt reminder light is flashing
Are the driver and all the passengers wearing the seat belts? (P. 665)
●The parking brake indicator is on
Is the parking brake released? (P. 345)
Depending on the situation, other types of warning buzzer may a lso sound.
( P. 660, 670)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 670)
●When a warning light turns on or a warning message is displayed , refer to
P. 660, 670.
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
A warning light turns on or a warning message is displayed

772Alphabetical index
PRIUS PRIME_OM_OM47D13U_(U)
Alphabetical index
A/C .................................... 496, 507Air conditioning eco
mode .......................... 499, 510
Air conditioning filter ............. 626
Automatic air conditioning system .... 496, 507
Eco score (A/C score)........... 236
Humidity sensor ............ 503, 514
Remote Air Conditioning System ............................... 518
S-FLOW mode .............. 497, 509
ABS (Anti-lock Brake System) .................................. 485 Function ................................ 485
Warning light ......................... 661
Air conditioning filter .............. 626
Air conditioning system ............................ 496, 507 Air conditioning eco mode .......................... 499, 510
Air conditioning filter ............. 626
Automatic air conditioning system .... 496, 507
Eco score (A/C score)........... 236
Humidity sensor ............ 503, 514
Remote Air Conditioning System ............................... 518
S-FLOW mode .............. 497, 509
Air intake vent ............................ 97 Airbags ....................................... 36
Airbag operating conditions .... 44
Airbag preca utions for
your child .............................. 40
Airbag warning light .............. 661
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 ............... 755
SRS airbags ........................... 36
Anchor brackets ........................ 73
Antenna (smart key system) .................................. 286
Anti-lock brake system (ABS) ...................................... 485 Function ................................ 485
Warning light......................... 661
A

773Alphabetical index
PRIUS PRIME_OM_OM47D13U_(U)
Approach warning ................... 409
Assist grips .............................. 552
Audio input
*
Audio system*
Automatic air conditioning system ..... 496, 507 Air conditioning eco mode .......................... 499, 510
Air conditioning filter ............. 626
Automatic air conditioning system .... 496, 507
Eco score (A/C score)........... 236
Humidity sensor ............ 503, 514
Remote Air Conditioning System ............................... 518
S-FLOW mode .............. 497, 509
Automatic door locking
and unlocking systems ........ 278
Automatic High Beam ............. 351
Automatic light control system .................................... 349
AUX port
*
Auxiliary boxes ........................ 531
Back door ................................. 281
Back-up lights .......................... 641 Replacing light bulbs............. 642
Wattage ................................ 724
Battery (12-volt battery) .......... 593
Battery checking ................... 593
Exchanging ........................... 704
If the 12-volt battery is discharged .......................... 701
Preparing and checking before winter....................... 491
Replacing .............................. 704
Warning light ......................... 660 Battery (traction battery) .......... 96
Air intake vent ......................... 97
Charging ............................... 108
Location .................................. 96
Specification ......................... 719
Status indicator ..................... 110
Blind Spot Monitor (BSM) ....... 417 Blind Spot Monitor function... 421
Rear Cross Traffic Alert
function............................... 424
Bluetooth
®*
Bottle holders .......................... 530
Brake Fluid ...................................... 723
Parking brake ....................... 345
Regenerative braking ............. 92
Warning light......................... 660
Brake assist ............................. 485
Brake Override System ........... 315
Break-in tips............................. 317
Brightness control Instrument cluster light control ......................... 190
BSM (Blind Spot Monitor) ....... 417 Blind Spot Monitor function... 421
Rear Cross Traffic Alert function............................... 424
Care .................................. 562, 567 Aluminum wheels ................. 563
Camera sensor ..................... 373
Exterior ................................. 562
Interior .................................. 567
Radar sensor ........................ 372
Seat belts.............................. 570
Water-repellent coating ........ 563
B
C
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.