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891-2. Hybrid system
1
PRIUS +_OM_OM47888E_(EE)
For safety and security
WARNING
■ Road accident cautions
Observe the following precautions to reduce the risk of death or serious
injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift posi-
tion to P, and turn the hybrid system off.
● Do not touch the high voltage parts, cables and connectors.
● If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
● Do not touch the battery if liquid is leaking from or adhering to it.
If electrolyte (carbonic-based organic el ectrolyte) from the hybrid battery
(traction battery) comes into contact with the eyes or skin, it could cause
blindness or skin wounds. In the unlikely event that it comes into contact
with the eyes or skin, wash it off immediately with a large amount of water,
and seek immediate medical attention.
● If electrolyte is leaking from the hybrid battery (traction battery), do not
approach the vehicle.
Even in the unlikely event that the hybrid battery (traction battery) is dam-
aged, the internal construction of the battery will prevent a large amount of
electrolyte from leaking out. However, any electrolyte that does leak out
will give off an acidic vapor. This vapor is an irritant to skin and eyes and
could cause acute poisoning if inhaled.
● Do not bring burning or high-temperature items close to the electrolyte.
The electrolyte may ignite and cause a fire.
● If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even
a small amount of water may be dangerous.
● If your vehicle needs to be towed, do so with front wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause a fire. ( →P. 370)
● Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.
Page 90 of 496

901-2. Hybrid system
PRIUS +_OM_OM47888E_(EE)
WARNING
■ Hybrid battery (traction battery)
Your vehicle contains a sealed lithium-ion battery.
●Never resell, hand over or modify the hybrid battery. To prevent accidents,
hybrid batteries that have been removed from a disposed vehicle are col-
lected through Toyota dealer. Do not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting
in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is haz-
ardous to the environment or someone may touch a high voltage part,
resulting in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid vehicle. If the hybrid battery is used outside of your vehicle or modified
in any way, accidents such as electric shock, heat generation, smoke
generation, an explosion and electrolyte leakage may occur.
When reselling or handing over your vehicle, the possibility of an accident
is extremely high because the person receiving the vehicle may not be
aware of these dangers.
● If your vehicle is disposed of without the hybrid battery having been
removed, there is a danger of serious electric shock if high voltage parts,
cables and their connectors are touched. In the event that your vehicle
must be disposed of, the hybrid battery must be disposed of by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional or a qualified service shop. If the hybrid battery is not disposed of
properly, it may cause electric shock that can result in death or serious
injury.
NOTICE
■ Hybrid battery (traction battery) air intake vent
●Do not place objects that will block the air intake vent. The hybrid battery
(traction battery) may overheat and be damaged.
● Clean the air intake vent regularly to prevent the hybrid battery (traction
battery) from overheating.
● Do not get water or foreign materials in the air intake vent as this may
cause a short circuit and damage the hybrid battery (traction battery).
● Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction battery), the battery
may be damaged. Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another dul y qualified and equipped professional.
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91
1
1-3. Theft deterrent system
PRIUS +_OM_OM47888E_(EE)
For safety and security
Immobilizer system
The indicator light flashes after
the power switch has been turned
off to indicate that the system is
operating.
The indicator light stops flashing
after the power switch has been
turned to ACCESSORY or ON
mode to indicate that the system
has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■ Conditions that may cause the system to malfunction
● If the grip portion of the key is in contact with a metallic object
● If the key is in close proximity to or touching a key registered to the security
system (key with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent
the hybrid system from starting if a key has not been previously
registered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This system is designed to help prevent vehicle theft but does not
guarantee absolute security against all vehicle thefts.
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921-3. Theft deterrent system
PRIUS +_OM_OM47888E_(EE)■
Certification for the immobilizer system
Page 93 of 496
931-3. Theft deterrent system
1
PRIUS +_OM_OM47888E_(EE)
For safety and security
Page 94 of 496
941-3. Theft deterrent system
PRIUS +_OM_OM47888E_(EE)
Page 95 of 496
951-3. Theft deterrent system
1
PRIUS +_OM_OM47888E_(EE)
For safety and security
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.
Page 96 of 496

961-3. Theft deterrent system
PRIUS +_OM_OM47888E_(EE)
Double locking system∗
Vehicles employing this system
have labels on the window glass
of both front doors.
Turn the power switch off, have all the passengers exit the vehicle and
ensure that all the doors are closed.
Using the entry function:
Touch the sensor area on the driver’s outside door handle or front
passenger’s door handle (if equipped with the sensor) twice within 5
seconds.
Using the wireless remote control:
Press twice within 5 seconds.
Using the entry function: Hold the outside door handle on the driver
side or front passenger side (if equipped with the sensor).
Using the wireless remote control: Press .
∗: If equipped
Unauthorized access to the vehicle is prevented by disabling the
door unlocking function from both the interior and exterior of
the vehicle.
Setting the double locking system
Canceling the double locking system
WARNING
■ Double locking system precaution
Never activate the double locking system when there are people in the vehi-
cle, because all the doors cannot be opened from inside the vehicle.