stop start TOYOTA PRIUS C 2020 Owner's Manual

1974-2. Driving procedures
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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.

1984-2. Driving procedures
PRIUS c_U
NOTICE
■To prevent 12-volt b attery discharge
● Do not leave the power switch in ACCESSORY or ON mode for long peri-
ods of time without the hybrid system on.
● If is displayed on the multi-information display, the power sw itch is
not off. Exit the vehicle after turning the power switch off.
● Do not stop the hybrid system when the shift lever is in a position other
than P. If the hybrid system is stopped in another shift lever position, the
power switch will not be turned off but instead be turned to AC CESSORY
mode. If the vehicle is left in ACCESSORY mode, 12-volt battery dis-
charge may occur.
■ When starting the hybrid system
● Do not depress the accelerator pedal unnecessarily.
● If the hybrid system becomes difficult to start, have your vehicle checked
by your Toyota dealer immediately.
■ Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunctio n. Contact
your Toyota dealer immediately.

2654-6. Using the driving support systems
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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.

2674-6. Using the driving support systems
4
Driving
PRIUS c_U
■Turning off both TRAC and VSC systems
To turn the TRAC and VSC systems off, press and hold for more than 3
seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRAC OFF” wil l be shown
on the multi-information display.
*
Press again to turn the system back on.
*: When the TRAC and VSC systems are turned off, pre-collision brake assist
and pre-collision braking will be disabled and the PCS warning light will illu-
minate. ( P. 240)
■ When the message is displayed on the multi-information display show-
ing that TRAC has been disab led even if has not been pressed
TRAC is temporary deactivated. If the information continues to show, contact
your Toyota dealer.
■ Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assi st control will
operate:
● The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The vehicle is stopped
● The accelerator pedal is not depressed
● The parking brake is not engaged
■ Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
● The shift lever is shifted to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● 2 seconds at maximum elapsed after the brake pedal is released
■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and
hill-start assist control systems
●A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the hybrid system is started or just after the
vehicle begins to move. This sound does not indicate that a mal function has
occurred in any of these systems.
● Any of the following conditions may occur when the above system s are
operating. None of these indicates that a malfunction has occur red.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a s top.

2694-6. Using the driving support systems
4
Driving
PRIUS c_U
WARNING
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded (suc h as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or s lick roads.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, espe cially in the
following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and p ower may be
lost.
■ Hill-start assist control does not operate effectively when
● Do not overly rely on hill-start assist control. Hill-start ass ist control may
not operate effectively on steep inclines and roads covered wit h ice.
● Unlike the parking brake, hill-start assist control is not inte nded to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
■ When the TRAC/ABS/VSC are activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the r oad condi-
tions. As these are the systems to help ensure vehicle stabilit y and driving
force, do not turn the TRAC/VSC systems off unless necessary.

3645-10. Bluetooth® phone (Multimedia system)
PRIUS c_U
In other situations
Even though all conceivable measures have been taken, the symptom sta-
tus does not change.
The cellular phone is not close enough to this system.
 Bring the cellular phone closer to this system.
The cellular phone is the most likely cause of the symptom.
Turn the cellular phone off, remove and reinstall the battery pack,
and then restart th e cellular phone.
 Enable the cellular phone’s Bluetooth
® connection.
 Stop the cellular phone’s security software and close all appli ca-
tions.
 Before using an application installed on the cellular phone, ca re-
fully check its source and how it s operation might affect this sys-
tem.

467
8When trouble arises
PRIUS c_U8-1. Essential information
Emergency flashers .......... 468
If your vehicle has to be stopped in
an emergency ................. 469
If the vehicle is trapped in rising water.................. 471
8-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 472
If you think something is wrong .......................... 479
If a warning light turns on or a warning buzzer
sounds ............................ 480
If a warning message is displayed ..................... 488
If you have a flat tire.......... 505
If the hybrid system will not start ..................... 518
If the electronic key does not operate properly ........ 520
If the vehicle 12-volt battery is discharged ....... 522
If your vehicle overheats ........................ 529
If the vehicle becomes stuck ................ 533

5218-2. Steps to take in an emergency
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When trouble arises
PRIUS c_U
Firmly depress the brake pedal and check that is displayed
on the multi-information display.
Press the power switc h shortly and firmly.
In the event that the power s witch still cannot be operated, co ntact
your Toyota dealer.
■ Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when
stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 451)
■ Changing power switch modes
Release the brake pedal and press the power switch in above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( P. 193)
■ If the doors cannot be locked o r unlocked by the smart key syst em
Lock and unlock the doors by the mechanical key or wireless rem ote control.
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features: P. 560)
● Check if battery-saving mode is set. If it is set, cancel the f unction.
( P. 142)
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5308-2. Steps to take in an emergency
PRIUS c_U
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for
coolant leaks from t he radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the
fan sound and air flow. If it is difficult to check these, turn the air condi-
tioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fan is operating:
Have the vehicle inspected at the neare st Toyota dealer.
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5318-2. Steps to take in an emergency
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When trouble arises
PRIUS c_U■
If the hybrid system overheat warning message is shown on
the multi-information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the
hoses and radiator core
(radiator) for any leaks. Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
The coolant level is satisfac-
tory if it is between the “F”
and “L” lines on the reservoir.
Reservoir
“F” line
“L” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and chec k for the multi-information dis-
play.
If the message d oes not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
Have the vehicle inspected at the neare st Toyota dealer.
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