Page 472 of 588
4728-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
●Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● is shown on the multi-information display
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you think something is wrong
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms
Page 482 of 588
4828-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
Multi-information display
Warning message details and/or
correction procedures are shown
on the multi-information display.
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the multi-
information display.
If any of the warning message or indicator comes on again after the
following actions have been performed, contact your Toyota dealer.
If a war ning message is displayed
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
1
2
Page 483 of 588

4838-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)
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. 518)
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 LDA (Lane Depar-
ture Alert) system A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates a malfunction in the PCS (Pre-Collision
System)
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(Flashes)
Page 486 of 588

4868-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
(If equipped)
Indicates that the moon roof is not fully closed
(with the “POWER” switch off and the driver’s
door is open)A buzzer also sounds.
Close the moon roof.
Indicates that the parking brake is still engaged If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the parking br ake is still engaged.
Release the parking brake.
(U.S.A. only)
Indicates that all maintenance according to the
driven distance on the maintenance schedule*1
should be performed soon.
Comes on approximately 4500 miles (7200 km)
after the message has been reset.
If necessary, perform maintenance.
(U.S.A. only)
Indicates that all maintenance is required to cor-
respond to the driven distance on the mainte-
nance schedule*
1.
Comes on approximately 5000 miles (8000 km)
after the message has been reset.
(The indicator will not work properly unless the
message has been reset.)
Perform the necessary maintenance.
Please reset the message after the mainte-
nance is performed. ( P. 403)
Indicates that the hybrid system has overheated This message may be displayed when driving
under severe operating conditions. (For exam-
ple, when driving up a long steep hill.)
A buzzer also sounds.
Stop and check. ( P. 518)
Warning messageDetails/Actions
(Flashes)
(Canada) (U.S.A.)
Page 488 of 588

4888-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)Indicates that the driver’s door was opened with
the shift position in N, D or B
A buzzer also sounds.
Shift the shift lever to P.
Indicates that the accelerator pedal is depressed
while the shift position is in N A buzzer also sounds.
Release the accelerator pedal and shift the
shift lever to D, B or R.
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.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes 3
times)
Page 490 of 588

4908-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
*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 ac tion turns the message off.
(If equipped)
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) (if equipped)
• LDA (Lane Departure Alert) (if equipped)
• Automatic High Beam (if equipped)
Turn the system off, clear the windshield of
dirt, fog, ice, etc. then turn the system back
on. ( P. 222)
(If equipped)
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.
(If equipped)
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.
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.
Have maintenance performed on the hybrid
battery (traction batter y) cooling component
at your Toyota dealer.
Warning messageDetails/Actions
(Flashes)
Page 492 of 588
4928-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
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)
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4938-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)
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.
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.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)