Page 87 of 632

871-3. Hybrid system
1
For safety and security
YARIS_HV_OM_Europe_OM52J66E
◆When stopped/during start off
The gasoline engine stops* when the vehicle is stopped. During
start off, the electric motor (traction motor) drives the vehicle. At
slow speeds or when traveling down a gentle slope, the engine is
stopped* and the electric motor (traction motor) is used.
When the shift lever is in N, the hybrid battery (traction battery) is
not being charged.
*: When the hybrid battery (traction battery) requires charging or the engine
is warming up, etc., the gasoline engine will not automatically stop.
( P. 88)
◆During normal driving
The gasoline engine is predominantly used. The electric motor
(traction motor) charges the hybrid battery (traction battery) as nec-
essary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the
hybrid battery (traction battery) is added to that of the gasoline
engine via the electric motor (traction motor).
◆When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power
generator, and the hybrid battery (traction battery) is charged.
Page 88 of 632

881-3. Hybrid system
YARIS_HV_OM_Europe_OM52J66E
■Regenerative braking
In the following situations, kinetic ener gy is converted to electric energy and
deceleration force can be obtained in c onjunction with the recharging of the
hybrid battery (traction battery).
● The accelerator pedal is released while driving with the shift lever in D or B.
● The brake pedal is depressed while driving with the shift lever in D or B.
■ EV indicator
■ Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions:
● During gasoline engine warm-up
● During hybrid battery (traction battery) charging
● When the temperature of the hybrid battery (traction battery) is high or low
● When the heater is switched on
■ Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the bat-
tery does not need to be charged from an outside source. However, if the
vehicle is left parked for a long time the hybrid battery (traction battery) will
slowly discharge. For this reason, be sure to drive the vehicle at least once
every few months for at least 30 minutes or 16 km (10 miles). If the hybrid
battery (traction battery) becomes fully discharged and you are unable to start
the hybrid system, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■ Charging the 12-volt battery
P. 578
The EV indicator comes on when the
vehicle is driven using only the electric
motor (traction motor) or the gasoline
engine is stopped.
Page 109 of 632

1092. Instrument cluster
2
Instrument cluster
YARIS_HV_OM_Europe_OM52J66E
Warning lights inform the driver of malfunctions in the indicated vehi-
cle’s systems.
Warning lights
*1
(Red)
Brake system warning
light ( P. 517)
*1
ABS warning light
( P. 519)
*1, 8Charging system
warning light ( P. 517)
*1Electric power steering
system warning light
( P. 519)
*9, 10Charging system
warning light ( P. 517)
*1, 2, 6PCS warning light
( P. 519)
*1, 8Low engine oil pressure
warning light ( P. 518)
*1, 3
Slip indicator (P. 520)
*9, 10
Low engine oil pressure
warning light ( P. 518)
*2, 8
(Yellow)
Automatic High Beam
indicator ( P. 520)
*1, 8High engine coolant
temperature warning
light ( P. 518)
*1
(Yellow)
Brake system warning
light ( P. 520)
*9, 10High engine coolant
temperature warning
light ( P. 518)
*2, 8
(Yellow)
Cruise control indicator
( P. 520)
*1, 8
Hybrid system warning
light ( P. 518)
*2, 8
(Yellow)
LDA indicator (P. 520)
*1
Malfunction indicator
lamp ( P. 518)
*2, 7, 8
(Yellow)
Lane marker indicators
( P. 520)
*1
SRS warning light
( P. 518)
*2, 4, 8
(Yellow)
Smart entry & start
system indicator
( P. 521, 529)
Page 135 of 632
1352. Instrument cluster
2
Instrument cluster
YARIS_HV_OM_Europe_OM52J66E
These images are examples only, and may vary slightly from actual condi-
tions.
When the vehicle is charging the hybrid battery (traction battery)
When there is no energy flow
Hybrid battery (traction battery) status
Navigation/Multimedia
system screen Multi-information display
Low FullLow Full
Page 144 of 632

1443-1. Key information
YARIS_HV_OM_Europe_OM52J66E
■ Key battery depletion
Vehicles without a smart entry & start system
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. ( P. 477)
Vehicles with a smart entry & start system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the hybrid
system stops. ( P. 477)
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( P. 477)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps
■ Replacing the battery
P. 477
■ Confirmation of the registered key number (vehicles with a smart entry &
start system)
The number of keys already registered to the vehicle can be confirmed. Ask
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer for details.
■ If a wrong key is used
On some models, the key cylinder rotates freely to isolate inside mechanism.
■ Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: P. 603)
Page 235 of 632
2354-2. Driving procedures
4
Driving
YARIS_HV_OM_Europe_OM52J66E
WARNING
■When driving on slippery road surfaces
Do not accelerate or shift gears suddenly.
Sudden changes in engine braking may cause the vehicle to spin or skid,
resulting in an accident.
■ To prevent an accident when releasing the shift lock
Before pressing the shift lock override button, make sure to set the parking
brake and depress the brake pedal.
If the accelerator pedal is accidentally depressed instead of the brake pedal
when the shift lock override button is pressed and the shift lever is shifted
out of P, the vehicle may suddenly start leading to an accident which may
result in death or serious injury.
NOTICE
■ Hybrid battery (traction battery) charge
If the shift lever is in N, the hybrid battery (traction battery) will not be
charged. To help prevent the battery fr om discharging, avoid leaving the N
position selected for an extended period of time.
Page 448 of 632

4487-3. Do-it-yourself maintenance
YARIS_HV_OM_Europe_OM52J66E
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, obser ve the following precautions before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first.
■ After recharging/reconnecting the 12-volt battery (vehicles with a smart
entry & start system)
● Unlocking the doors using entry function of the smart entry & start system
may not be possible immediately after reconnecting the 12-volt battery. If
this happens, use the wireless remote control or the mechanical key to lock/
unlock the doors.
● Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
Page 450 of 632

4507-3. Do-it-yourself maintenance
YARIS_HV_OM_Europe_OM52J66E
WARNING
■Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
■ When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause
gas (hydrogen) to enter the passenger compartment, causing a fire or
explosion.
For replacement of the 12-volt battery, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
NOTICE
■ When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.