
2224-2. Driving procedures
YARIS_HV_OM_Europe_OM52J66E
Stop the vehicle. 
Set the parking brake ( P. 237), and shift the shift lever to P. 
Press the power switch. 
Vehicles with monochrome display: Release the brake pedal and 
check that the smart entry & start system indicator (green) is off. 
Vehicles with color display: Release the brake pedal and check that 
“Power on” on the multi-information display is off. 
Modes can be changed by pressing the power switch with brake pedal 
released. (The mode changes each time the switch is pressed.) 
Vehicles with monochrome display 
Off*
The emergency flashers can be 
used. 
The smart entry & start system 
indicator (green) is off.
ACCESSORY mode
Some electrical components such
as the audio system can be used. 
The smart entry & start system 
indicator (green) flashes slowly.
ON mode
All electrical components can be
used. 
The smart entry & start system 
indicator (green) flashes slowly.
*:  If the shift lever is in a position other than P when turning off the hybrid sys- 
tem, the power switch will be turned to ACCESSORY mode, not to off.
Stopping the hybrid system
Changing power switch modes
1
2
3
4 

2244-2. Driving procedures
YARIS_HV_OM_Europe_OM52J66E
If the hybrid system is stopped with the shift lever in a position other 
than P, the power switch will not be turned off but instead be turned to 
ACCESSORY mode. Perform the following procedure to turn the 
switch off: 
Check that the parking brake is set. 
Shift the shift lever to P.
Vehicles with monochrome display 
Check that the smart entry & start system indicator (green) flashes 
slowly and then press the power switch once. 
Check that the smart entry & start system indicator (green) is off.
Vehicles with color display 
Check that “Power on” and “Turn power OFF.” are displayed alter- 
nately on the multi-information display and then press the power 
switch once. 
Check that “Power on” and “Turn power OFF.” on the multi-informa- 
tion display are off.
When stopping the hybrid system with the shift lever in a posi- 
tion other than P
1
2
3
4
3
4 

2274-2. Driving procedures
4
Driving
YARIS_HV_OM_Europe_OM52J66E 
■ Operation of the power switch 
● If the switch is not pressed shortly and firmly, the power switch mode may 
not change or the hybrid system may not start. 
● If attempting to restart the hybrid system immediately after turning the power 
switch off, the hybrid system may not start in some cases. After turning the 
power switch off, please wait a few seconds before restarting the hybrid sys-
tem. 
■ If the smart entry & start system has been deactivated in a customized 
setting 
 P. 573
WARNING
■When starting the hybrid system 
Always start the hybrid system while sitting in the driver’s seat. 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 injury. 
■ 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. Activa- 
tion of the steering lock in this circumstance may lead to an accident, result-
ing in death or serious injury. 
■ Stopping the hybrid system in an emergency 
If you want to stop the hybrid system in an emergency while driving the 
vehicle, press and hold the power switch for more than 3 seconds, or press 
it briefly 3 times or more in succession. ( P. 507) 
However, do not touch the power switch while driving except in an emer- 
gency. Turning the hybrid system off while driving will not cause loss of 
steering or braking control, however,  power assist to the steering will be 
lost. This will make it more difficult to steer smoothly, so you should pull over
and stop the vehicle as soon as it is safe to do so. 

2284-2. Driving procedures
YARIS_HV_OM_Europe_OM52J66E
NOTICE
■To prevent 12-volt battery discharge 
● Do not leave the power switch in ACCESSORY or ON mode for long peri- 
ods of time without the hybrid system on. 
● Vehicles with monochrome display: If the smart entry & start system indi- 
cator (green) is illuminated, the power switch is not off. When exiting the
vehicle, always check that the power switch is off. 
● Vehicles with color display: If “Power on” is displayed on the multi-informa- 
tion display, the power switch is not off. When exiting the vehicle, always
check that the power switch is 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 ACCESSORY 
mode. If the vehicle is left in ACCESSORY mode, 12-volt battery dis- 
charge may occur. 
■ When starting the hybrid system 
If the hybrid system becomes difficult to start, have your vehicle checked by 
any authorized Toyota retailer or Toyota authorized repairer, or any reliable 
repairer 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 malfunction. 
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer immediately. 

303
4
4-6. Using the driving support systems
Driving
YARIS_HV_OM_Europe_OM52J66E
Driving assist systems
◆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 suddenly, 
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 pedal 
is depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control) 
Helps the driver to control skidding when swerving suddenly or 
turning on slippery road surfaces
◆TRC (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 
To keep driving safety and performance, the following systems 
operate automatically in response to various driving situations. 
Be aware, however, that these systems are supplementary and 
should not be relied upon too heavily when operating the vehi-
cle.  

3064-6. Using the driving support systems
YARIS_HV_OM_Europe_OM52J66E 
■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRC 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 sy stem is started or just after the 
vehicle begins to move. This sound does not indicate that a malfunction has 
occurred in any of these systems. 
● Any of the following conditions may occur when the above systems are 
operating. None of these indicates that a malfunction has occurred. 
● Vibrations may be felt through the vehicle body and steering. 
● A motor sound may be heard also after the vehicle comes to a stop. 
■ 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 brake pedal 
is operated. 
● Motor sound of the brake system heard from the front part of the vehicle 
when the driver’s door is opened. 
● Operating sound heard from the engine compartment when one or two min- 
utes passed after the stop of the hybrid system. 
■ EPS operation sound 
When the steering wheel is operated, a motor sound (whirring sound) may be 
heard. This does not indicate a malfunction. 
■ Automatic reactivation of TRC and VSC systems 
After turning the TRC and VSC systems off, the systems will be automatically 
re-enabled in the following situations: 
● When the power switch is turned off 
● If only the TRC system is turned off, the TRC will turn on when vehicle 
speed increases 
If both the TRC and VSC systems are turned off, automatic re-enabling will 
not occur when vehicle speed increases. 

3074-6. Using the driving support systems
4
Driving
YARIS_HV_OM_Europe_OM52J66E 
■ Reduced effectiveness of the EPS system 
The effectiveness of the EPS system is reduced to prevent the system from 
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this 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. 
■ Operating conditions of hill-start assist control 
When the following four conditions are me t, the hill-start assist 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. 
■ Operating conditions of emergency brake signal 
When the following three conditions are met, the emergency brake signal will 
operate: 
● The emergency flashers are off. 
● Actual vehicle speed is over 55 km/h (35 mph). 
● The brake pedal is depressed in a manner that cause the system to judge 
from the vehicle deceleration that this is a sudden braking operation. 
■ Automatic system cancelation of emergency brake signal 
The emergency brake signal will turn off in any of the following situations: 
● The emergency flashers are turned on. 
● The brake pedal is released. 
● The system judges from the vehicle deceleration that is not a sudden brak- 
ing operation. 

3084-6. Using the driving support systems
YARIS_HV_OM_Europe_OM52J66E
WARNING
■The ABS does not operate effectively when 
● The limits of tire gripping performance have been exceeded (such as 
excessively worn tires on a snow covered road). 
● The vehicle hydroplanes while driving at high speed on wet or slick roads. 
■ Stopping distance when the ABS is operating may exceed that of nor- 
mal conditions 
The ABS is not designed to shorten t he vehicle’s stopping distance. Always 
maintain a safe distance from the vehicle in front of you, especially 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 
■ TRC/VSC may not operate effectively when 
Directional control and power may not be achievable while driving on slip- 
pery road surfaces, even if the TRC/VSC system is operating.  
Drive the vehicle carefully in conditions where stability and power may be 
lost. 
■ Hill-start assist control does not operate effectively when 
● Do not overly rely on hill-start assist control. Hill-start assist control may 
not operate effectively on steep inclines and roads covered with ice. 
● Unlike the parking brake, hill-start assist control is not intended 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 VSC is activated 
The slip indicator light flashes. Always  drive carefully. Reckless driving may 
cause an accident. Exercise particular care when the indicator light flashes.