Page 455 of 552
4558-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
*1: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
*2: For the EV drive mode operating conditions:P. 194
Carrying out the corresponding action turns the message off.
Indicates that the shift lever is shifted while the
accelerator pedal is being depressed A buzzer also sounds.
Release the accelerator pedal.
Other displayed message
Displayed messageDetails/Actions
Maintenance of the hybrid system (traction bat-
tery) cooling component is required
The filter may be clogged, the air vent may be
blocked or there may be a gap in the duct.
Have maintenance performed on the hybrid
system (traction battery) cooling component
at your Toyota dealer.
Warning messageDetails/Actions
(Flashes)
Page 456 of 552
4568-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
After taking the specified steps to correct the suspected problem,
check that the warning message and light go off.
Have the malfunction repaired immediately. (vehicles with a
smart key system)
InteriorbuzzerExterior buzzerWarning messageDetails/Actions
Once The electronic key is not
detected when an attempt is
made to start the hybrid sys-
tem.
Start the hybrid system
with the electronic key
present.
Once3 times
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while the shift lever was
in P without turning off the
“POWER” switch.
Turn the “POWER” switch
off or bring the electronic
key back into the vehicle.
The electronic key was carried
outside the vehicle and a door
other than the driver's door was
opened and closed while the
“POWER” switch was in a
mode other than off.
Bring the electronic key
back into the vehicle.
(Flashes)
(Flashes)
Page 457 of 552
4578-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
Once
Contin-uous
(For 5 sec-
onds)
An attempt was made to lock
the doors using the entry func-
tion after the electronic key was
carried outside the vehicle with-
out turning off the “POWER”
switch.
Turn the “POWER” switch
off and lock the doors
again.
9 times
An attempt was made to start
the hybrid system without the
electronic key being present, or
the electronic key was not func-
tioning normally.
An attempt was made to drive
when the regular key was not
inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
Contin-
uous
The driver’s door was opened
while a shift lever position other
than P was selected without
turning off the “POWER”
switch.
Shift the shift lever to P.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)
Page 459 of 552
4598-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
Once
• The electronic key could notbe detected when the
“POWER” switch was
pressed after the doors were
unlocked with the mechanical
key.
• The electronic key could not be detected two consecutive
times when the “POWER”
switch was pressed.
Touch the electronic key to
the “POWER” switch while
depressing the brake
pedal.
Once
An attempt was made to start
the hybrid system with the shift
lever in a position other than P.
Shift the shift lever to P
and start the hybrid sys-
tem.
Power was turned off due to the
automatic power off function.
Next time when starting
the hybrid system,
increase the engine speed
slightly and maintain that
level for approximately 5
minutes to recharge the
12-volt-battery.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. ( P. 413)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 460 of 552
4608-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
Once
The driver's door was opened
and closed with the “POWER”
switch turned off and then the
“POWER” switch was put in
ACCESSORY mode twice with-
out the hybrid system being
started.
Press the “POWER”
switch while depressing
the brake pedal.
During a hybrid system starting
procedure in the event that the
electronic key was not function-
ing properly
(P. 476), the “POWER” switch
was touched with the electronic
key.
Press the “POWER”
switch within 10 seconds
of the buzzer sounding.
Once
The steering lock could not be
released within 3 seconds of
the “POWER” switch being
pressed.
Press the “POWER”
switch while depressing
the brake pedal and mov-
ing the steering wheel left
and right.
Once
The “POWER” switch has been
turned off with the shift lever in
a position other than P.
Shift the shift lever to P.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
Page 462 of 552
4628-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the hybrid system.
● Turn on the emergency flashers. ( P. 430)
*: Jack handle, wheel nut wrench and towing eyelet
If you have a flat tire
Your vehicle is equipped with a spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: P. 3 9 8
WARNING
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair, which could result in an accident.
Before jacking up the vehicle
Location of the spare tire, jack and tools
Luggage floor cover
Spare wheel cushions
To o l b a g
*
Spare tire
Jack1
2
3
4
5
Page 463 of 552

4638-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the hybrid system while your vehicle is supported by
the jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●When lowering the vehicle, make sure that there is no-one near the
vehicle. If there are people nearby, warn them vocally before lowering.
Page 473 of 552

4738-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
One of the following may be the cause of the problem:
●Vehicles with a smart key system: The electronic key may not be
functioning properly. ( P. 476)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 214)
● Vehicles with immobilizer system: There may be a malfunction in
the immobilizer system. ( P. 82)
● There may be a malfunction in the steering lock system.
● Vehicles with a smart key system: The hybrid system may be mal-
functioning due to an electrical problem such as an open circuit or a
blown fuse. However, depending on the type of malfunction, an
interim measure is available to start the hybrid system. ( P. 474)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 478)
● The 12-volt battery terminal connections may be loose or corroded.
( P. 394)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 478)
● One or both of the 12-volt battery terminals may be disconnected.
( P. 394)
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
If the hybrid system will not star t
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 182, 186)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
The interior lights and headlights do not turn on, or the horn
does not sound.