key TOYOTA PRIUS C 2020 Manual Online

4708-1. Essential information
PRIUS c_U
WARNING
■If the hybrid system has to b e turned off while driving
● Power assist for the steering wheel will be lost, making the st eering wheel
heavier to turn. Decelerate as much as possible before turning off the
hybrid system.
● Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.

4768-2. Steps to take in an emergency
PRIUS c_U
Securely attach cables or chains to the towing eyelet.
Take care not to damage the vehicle body.
Vehicles without a smart key system: Enter the vehicle being to wed
and start the hybrid system.
If the hybrid system does not start, turn the power switch to the “ON” posi-
tion.
Vehicles with a smart key system : Enter the vehicle being towed
and start the hybrid system.
If the hybrid system does not start, turn the power switch to O N mode.
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 2 0 4
■While towing
If the hybrid system is off, the power assist for the brakes an d steering will not
function, making steering and braking more difficult.
■ Wheel nut wrench
Wheel nut wrench is installed in luggage compartment. (P. 506)
5
6
7

4778-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■ While towing
● When towing using cables or chains, avoid sudden starts, etc. w hich place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit peo-
ple, and cause serious damage.
● Do not turn the power switch to the “LOCK” position (vehicles w ithout a
smart key system) or the power switch off (vehicles with a smart key sys-
tem).
There is a possibility that the steering wheel is locked and ca nnot be oper-
ated.
■ Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged or electricity gen-
erated by the operation of the motor may
cause a fire to occur depending on the
nature of the damage or malfunction.

4788-2. Steps to take in an emergency
PRIUS c_U
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type
truck
● Vehicles without a smart key system: Do not tow the vehicle fro m the rear
when the power switch is in the “LOCK” position or the key is r emoved.
The steering lock mechanism is not strong enough to hold the front wheels
straight.
● Vehicles with a smart key system: Do not tow the vehicle from the rear
when the power switch off. The steering lock mechanism is not s trong
enough to hold the front wheels straight.
● When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
■ To prevent damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or re ar.
■ To prevent damage to the vehic le during emergency towing
Do not secure cables or chains to the suspension components.

4838-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
*1: Brake system warning buzzer: When there is a possible problem that could affect braking perf ormance,
the warning light will come on and a warning buzzer will sound.
*2: Parking brake engaged warning buzzer P. 207, 492
*3: Driver’s seat belt buzzer: Vehicles without a smart key system: The driver’s seat belt buzzer sounds
to alert the driver that his or her seat belt is not fastened. Once the power
switch is turned to the “ON” position, 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 10 seconds. Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 20 more seconds.
Vehicles with a smart key system: The driver’s seat belt buzzer sounds to
alert the driver that his or her seat belt is not fastened. Onc e the power
switch is turned to ON mode, the buzzer sounds for 6 seconds. I f the vehi-
cle 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 intermit-
tently for 10 seconds. Then, if the seat belt is still unfasten ed, the buzzer
will sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the fron t passenger
that his or her seat belt is not fastened. The buzzer sounds on ce if the
vehicle reaches a speed of 12 mph (20 km/h). If the seat belt i s still unfas-
tened after 24 seconds, the buzzer will sound intermittently fo r 10 seconds.
Then, if the seat belt is still unfastened, the buzzer will sou nd in a different
tone for 20 more seconds.
Tire pressure warning light When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 4 8 4 )
• Flat tire ( P. 505)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case
the light does not turn off even if the tire inflation
pressure is adjusted, have the system checked by
your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in t he tire pressure warning system
(  P. 4 8 5 )
 Have the system checked by your Toyota dealer.
Warning lightWarning light/Details/Actions

4858-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U■
If the tire pressure warning system is not functioning
P. 440
■
If the tire pressure warning light frequently comes on after bl inking
for 1 minute
If the tire pressure warning light frequently comes on after bl inking for 1
minute when the power switch is turned to the “ON” position (ve hicles
without a smart key system) or the power switch is turned to ON mode
(vehicles with a smart key system) , have it checked by your Toyota
dealer.
■ Customization that can be configured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disab led. (Cus-
tomizable features: P. 560) However, Toyota recommends that the seat belt
reminder buzzer be operational to alert the driver and front pa ssenger when
seat belts are not fastened.
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy pla ce or an
audio sound.
WARNING
■ When the electric power steering system warning light comes on
The steering wheel may 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 t he tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inf lation pres-
sure adjustment, it is probable that you have a flat tire. Chec k the tires.
If a tire is flat, change it with the spare tire and have the f lat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires dete riorate,
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.

4908-2. Steps to take in an emergency
PRIUS c_U
Indicates a malfunction in:
• The Automatic High Beam system
• The LED headlight systemA buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates that:
• There is a high possibility of a frontal collision;
or
• The pre-collision braking function is operating A buzzer also sounds.
 Check the vehicle's surroundings and take
evasive action if necessary.
(If equipped)
• Indicates a malfunction in the smart key system
• Indicates a malfunction in the steering lock sys-
tem
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates a malfunction in the cruise control sys-
tem
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the Brake Override
System
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Warning messageDetails/Actions
(Flashes)

4948-2. Steps to take in an emergency
PRIUS c_UIndicates that the hybrid battery (traction battery)
power has dropped because a long period of time
has elapsed after shifting the shift lever to N
A buzzer also sounds.
 Shift the shift lever to P and restart the
hybrid system when starting the vehicle.
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 power 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 (vehicles
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.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

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)