321 2-4. Using other driving systems
2
When driving
YARIS_F (including HV)_WE_52C79E
• The vehicle is stopped on a steep hill.
• The brake booster vacuum is low.
• A large amount of electricity is being used.
• At high altitude.
When the above conditions improve, the Stop & Start system will stop and
restart the engine from the next time the vehicle is stopped.
In the following situations, the engine may start even without the brake
pedal being released (vehicles with a Multidrive) or clutch pedal being
depressed (vehicles with a manual transmission).
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used or turned on.
• Vehicles with an automatic air conditioning system only: The wind-
shield defogger is turned on.
• The battery is not sufficiently charged.
• The vehicle starts to roll on an incline.
• Vehicles with a Multidrive: The hood is opened when the shift lever is in
N or P.
• The accelerator pedal is depressed.
• A large amount of electricity is being used.
• Vehicles with a Multidrive: The driver’s door is opened.
• Vehicles with a Multidrive: The driver’s seat belt is unfastened.
In the following situations, it may take longer than normal for the Stop &
Start system to activate.
• The battery is discharged.
• After the battery terminals have been disconnected and reconnected
after a battery replacement, etc.
• The engine coolant temperature is low.
Automatic reactivation of the Stop & Start system
Vehicles without a smart entry & start system:
Even if the Stop & Start system is disabled by the Stop & Start cancel switch,
it will be automatically re-enabled once the engine switch is turned to the
“LOCK” position then to the “START” position.
Vehicles with a smart entry & start system:
Even if the Stop & Start system is disabled by the Stop & Start cancel switch,
it will be automatically re-enabled once the “ENGINE START STOP” switch
is turned off then the engine is started.
493 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
CAUTION
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 explo-
sion.
For replacement of the 12-volt battery, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
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.
