2020 TOYOTA PRIUS C Owners Manual

4978-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
Brake Override System is operating. (P. 173)
 Release the accelerator pedal and depress
the brake pedal.
Indicates that, as the shift lever was shifted while
the accelerator pedal was depressed, Drive-Start
Control was activated. ( P. 173)
A buzzer also sounds.
 Release the accelerator pedal immediately.
Indicates that the accelerator pedal is depressed
with the shift lever in P
 Release the accelerator pedal.
The system is temporarily canceled because the
operating conditions of the front sensor (tempera-
ture, etc.) are not met.
The following systems may be suspended:
• PCS (Pre-Collision system)
• LDA (Lane Departure Alert)
• Automatic High Beam
The system can be operated when the
operating conditions of the front sensor
(temperature, etc.) ar e met. Turn the system
off, wait for a while, and then turn the sys-
tem back on.
The area of the windshield in front of the front
sensor is fogged up or covered with dirt, rain, ice,
snow, etc.
The following systems may be suspended:
• PCS (Pre-Collision system)
• LDA (Lane Departure Alert)
• Automatic High Beam
 Turn the system off, clear the windshield of
dirt, fog, ice, etc. then turn the system back
on. ( P. 228)
Warning messageDetails/Actions
(Flashes)
(Flashes)

4988-2. Steps to take in an emergency
PRIUS c_U
*1: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your veh icle.
*2: For the EV drive mode operating conditions:
P. 200
Indicates that the LDA (Lane Departure Alert)
system cannot be used because the vehicle
speed is lower than approximately 32 mph (50
km/h)
 Drive the vehicle at 32 mph (50 km/h) or
higher.
Indicates that the LDA (Lane Departure Alert)
system is suspended (The vehicle speed is too
high for the system to operate.)
Reduce the vehicle speed.
Warning messageDetails/Actions

4998-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
Carrying out the corresponding action turns the message off.
After taking the specified steps to correct the suspected probl em,
check that the warning m essage and light go off.
Other displayed message
Displayed messageDetails/Actions
Maintenance of the hybrid battery (traction battery)
cooling component is required
The filter may be clogged, the air intake vent
may be blocked or there may be a gap in the
duct.
 If the air intake vent is dirty, refer to P. 404
for cleaning the air intake vent.
 If the message is being displayed and the air
intake vent is not dirty, have the vehicle
inspected at your Toyota dealer.
Have the malfunction repaired immediately. (vehicles with a
smart key system)
Interior
buzzerExterior 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.
(Flashes)

5008-2. Steps to take in an emergency
PRIUS c_U
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.
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.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)

5018-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
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.
Contin-
uousContin-uous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while a shift lever posi-
tion other than P was selected
without turning off the power
switch.
 Shift the shift lever to P.
 Bring the electronic key
back into the vehicle.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Displayed alternately)
(Flashes)

5028-2. Steps to take in an emergency
PRIUS c_U

Contin-uous
(5 sec-
onds)
An attempt was made to lock
the doors using the smart key
system while the electronic key
was still inside the vehicle.
 Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
Contin-
uous
(5 sec- onds)
An attempt was made to lock
either front door by opening a
door and putting the inside door
lock button into the lock posi-
tion, and then closing the door
while pulling on the outside
door handle with the electronic
key still inside the vehicle.
 Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
• The electronic key could not
be 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.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

5038-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U

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. 451)
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. 520), the
power switch was touched with
the electronic key.
 Press the power switch
within 10 seconds of the
buzzer sounding.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)

5048-2. Steps to take in an emergency
PRIUS c_U
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy pla ce or an
audio sound.
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 moving 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.
Once

After the power switch has
been turned off with the shift
lever in a position other than P,
the shift lever has been shifted
to P.
 Turn the power switch off.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)