2020 TOYOTA PRIUS C power steering

1894-2. Driving procedures
4
Driving
PRIUS c_U
“LOCK”
The steering wheel is locked and
the key can be removed. (The key
can be removed only when the
shift lever is in P.)
“ACC”
Some electrical components such
as the power outlet can be used.
“ON”
All electrical components can be used.
“START”
For starting the hybrid system.
■Turning the key from “ACC” to “LOCK”
Shift the shift lever to P.
■ Sounds and vibrations sp ecific to a hybrid vehicle
P. 80
■ When the ambient temperature is low, such as during winter driv ing con-
ditions
When starting the hybrid system, the flashing time of the “READ Y” indicator
may be long. Leave the vehicle as it is until the “READY” indic ator is steady
on, as steady means the vehicle is able to move.
Changing the power switch positions
1
2
3
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1
Push in the key and turn it to the
“LOCK” position.2

1904-2. Driving procedures
PRIUS c_U■
If the hybrid system does not start (vehicles with immobilizer system)
The immobilizer system may not have been deactivated. ( P. 88)
Contact your Toyota dealer.
■ When the steering lock cannot be released
■ If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even a fter perform-
ing the proper procedures for starting the vehicle, contact you r Toyota dealer
immediately.
■ If the hybrid system is malfunctioning
P. 489
■ Key reminder function
A buzzer sounds if the driver’s door is opened while the power switch is in the
“LOCK” or “ACC” position to remind you to remove the key. When starting the hybrid system, the
power switch may seem stuck in the
“LOCK” position. To free it, turn the key
while turning the steering wheel slightly
left and right.
WARNING
■ When starting the hybrid system
Always start the hybrid system while sitting in the driver’s se at. Do not
depress the accelerator pedal while starting the hybrid system under any
circumstances.
Doing so may cause an accident resulting in death or serious in jury.
■ Caution when driving
Do not turn the power switch to the “LOCK” position while drivi ng. If, in an
emergency, you must turn the hybrid system off while the vehicle is moving,
turn the power switch only to the “ACC” position to stop the hy brid system.
An accident may result if the hybrid system is stopped while dr iving.
( P. 469)

1954-2. Driving procedures
4
Driving
PRIUS c_U■
Notes for the entry function
P. 144
■ If the hybrid system does not start
●The immobilizer system may not have been deactivated. ( P. 88)
Contact your Toyota dealer.
■ Steering lock
After turning the power switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
power switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the hybrid system is turned on and off repeatedly in a short period
of time. In this case, refrain from operating the hybrid system . After about 10
seconds, the steering lock motor will resume functioning. ● Check that the shift lever is securely set
in P. The hybrid system may not start if
the shift lever is not securely in the P
position. “SHIFT INTO P POSITION TO
START” will be displayed on the multi-
information display.
“STEERING LOCK ACTIVE” will be dis-
played on the multi-information display.
Check that the shift lever is set in P.
Press the power switch while turning the
steering wheel left and right.

1974-2. Driving procedures
4
Driving
PRIUS c_U
WARNING
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s se at. Do not
depress the accelerator pedal while starting the hybrid system under any
circumstances.
Doing so may cause an accident resulting in death or serious in jury.
■ Caution while driving
If a hybrid system failure occurs while the vehicle is moving, do not lock or
open the doors until the vehicle reaches a safe and complete stop. Doing so
may cause activation of the steering lock which may lead to an accident,
resulting in death or serious injury.
■ When “CHECK SMART KEY SYSTEM” is displayed on the multi-infor-
mation display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately. Failure to do so may lead to the sys tem operat-
ing abnormally and possibly cause an accident or damage to the vehicle.
■ Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while dri ving the
vehicle, press and hold the power switch for more than 2 second s, or press
it briefly 3 times or more in succession. ( P. 469)
However, do not touch the power switch while driving except in an emer-
gency. Turning the hybrid system off while driving will not cau se loss of
steering or braking control, however, power assist to the steer ing will be
lost. This will make it more difficult to steer smoothly, so yo u should pull over
and stop the vehicle as soon as it is safe to do so.

2654-6. Using the driving support systems
4
Driving
PRIUS c_U
◆ECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when start -
ing on an uphill
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
Driving assist systems
To keep driving safety and perf ormance, the following systems
operate automatically in respon se to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heav ily when operating the vehi-
cle.

2684-6. Using the driving support systems
PRIUS c_U■
ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
● Operating sound heard from the engine compartment when the brak e pedal
is operated.
● Motor sound of the brake system heard from the front part of th e vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when one or t wo min-
utes passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring so und) may be
heard. This does not indicate a malfunction.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result. Should thi s occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.
■ Electric power steering system wa rning light (warning buzzer)
P. 484
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
● When the power switch is turned to the “LOCK” position (vehicles without a
smart key system) or the power switch is turned off (vehicles with a smart
key system)
● If only the TRAC system is turned off, the TRAC will turn on wh en vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-e nabling will
not occur when vehicle speed increases.

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)
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