Electric Vehicle system precautions Be careful of the high voltage components (nominal voltage at 355.2 V), such as the traction battery, electricity supply unit, orange colored high voltage cables, and electric motor, as well as high temperature components such as the cooling radiator, which are provided on the battery electric vehicle. For the high voltage components, warning labels are provided on them. Read them when they need to be handled. System components The illustration is an example for explanation and may differ from the actual item. Warning label High voltage cables (orange) ESU: Electricity Supply Unit (built in onboard traction battery charger/DC-DC converter) Service plug AC charging inlet DC charging inlet Traction battery Electric motor (traction motor)/Inverter (front/rear^*) Air conditioning compressor ^*AWD models only Note: Electromagnetic waves High-voltage parts and cables on the battery electric vehicles incorporate electro-magnetic shielding, and therefore emit approximately the same amount of electromagnetic waves as conventional gasoline-powered vehicles or home electronic appliances. Your vehicle may cause sound interference in some third party-produced radio parts. Traction battery (Lithium-ion battery) The traction battery has a limited service life. The traction battery capacity (the ability to store energy) reduces with time and use in the same way as other rechargeable batteries. The extent at which capacity reduces changes drastically depending on the environment (outside temperature, etc.) and usage conditions, such as how the vehicle is driven and how the traction battery is charged. This is a natural characteristic of lithium-ion batteries, and is not a malfunction. Also, even though the driving range decreases when the traction battery capacity reduces, vehicle performance does not significantly become worse. In order to reduce the possibility of the capacity reducing, follow the directions listed on Capacity reduction of the traction battery, “ Capacity reduction of the traction battery”. Starting the EV system in an extremely cold environment When the traction battery is extremely cold (below approximately -22°F [-30°C]) due to the temperature outside of the vehicle, it may not be possible to start the EV system. In this case, try to start the EV system again after the temperature of the traction battery increases due to the outside temperature increasing, etc. Warning: High-voltage precautions The vehicle has high voltage DC and AC systems as well as a 12-volt system. DC and AC high voltage systems are very dangerous and can cause severe burns and electric shock that may result in death or serious injury. Never touch, disassemble, remove, or replace the high voltage parts, cables (orange) or their connectors. The EV system will become hot after starting as the system uses high voltage. Be careful of both the high voltage and the high temperature, and always obey the warning labels attached to the vehicle. Never try to open the service plug access hole located under the floor. The service plug is used only when the vehicle is being serviced and is subject to high voltage. Road accident cautions Observe the following precautions to reduce the risk of death or serious injury: Stop the vehicle in a safe place to prevent subsequent accidents. While depressing the brake pedal, apply the parking brake and shift the shift position to P to stop the EV system. Then, slowly release the brake pedal. Do not touch the high voltage parts, cables (orange) 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 traction battery if liquid is leaking from or adhered to it. If electrolyte (Organic Carbonate-based electrolyte) from the 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 traction battery, do not approach the vehicle. Even in the unlikely event that the traction battery has been damaged, the internal construction of the battery will prevent a large amount of electrolyte from leaking out. However, if electrolyte leaks, vapors will be emitted. These vapors are 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 battery electric vehicle, leave the vehicle as soon as possible. Never use a fire extinguisher that is not meant for electrical fires. Using even a small amount of water may be dangerous. If your vehicle needs to be towed, be sure to transport the vehicle with the front wheels (2WD models) or four wheels (AWD models) raised. If the vehicle is towed with the wheels which are connected to the electric motor (traction motor) contacting the ground, electricity generated by the operation of the motor may cause a fire to occur depending on the nature of the damage or malfunction. (If your vehicle needs to be towed) Carefully inspect the ground under the vehicle. If leaked liquid (other than water from the air conditioning) is found on the ground, the traction battery may have been damaged. Leave the vehicle as soon as possible. In addition, contact your Toyota dealer with regard to the leakage found on the ground.Even in the event of a minor accident, the traction battery and surrounding parts may be damaged. In case of an accident, have the traction battery inspected at a Toyota dealer. Traction battery Your vehicle contains a sealed lithium-ion battery. Never resell, hand over or modify the traction battery. To prevent accidents, traction batteries that have been removed from a disposed vehicle are collected through your 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: Do not illegally dispose of or dump the traction battery, and it is hazardous to the environment or someone may touch a high voltage part, resulting in an electric shock. The traction battery is intended to be used exclusively with your battery electric vehicle. If the traction 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 the dangers from these modifications. If your vehicle is disposed of without the traction 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 traction battery must be disposed of by your Toyota dealer or a qualified service shop. If the traction battery is not disposed of properly, it may cause electric shock that can result in death or serious injury. For information about traction battery collection locations, contact information, or the recycling process, contact your Toyota dealer. Caution while driving Pay special attention to the area around the vehicle. Because there is no engine noise, pedestrians, people riding bicycles or other people and vehicles in the area may not be aware of the vehicle starting off or approaching them, so take extra care while driving. Therefore, take extra care while driving even if the Acoustic Vehicle Alerting System is active. If the vehicle under floor area receives strong shock or impact while driving, stop the vehicle in a safe place and check around the bottom of the vehicle. If there is damage to the traction battery or liquid leakage, it may lead to a vehicle fire, etc. Do not touch the vehicle and immediately contact your Toyota dealer.Even if no damage can be seen under the floor, the traction battery may be damaged. If the vehicle received an impact under the floor, have the traction battery inspected at a Toyota dealer. Modifications Do not make modifications that lower the height of the vehicle. The traction battery in the under floor area may come into contact with the ground when the height of vehicle is lowered. If the traction battery is damaged, a vehicle fire may occur, possibly resulting in death or serious injury. EV system Emergency shut off system Emergency shut off system When a certain level of impact is detected by the impact sensors, the emergency shut off system turns off the EV system and blocks the high voltage current. If the emergency shut off system activates, your vehicle will not restart. To restart the EV system, contact your Toyota dealer. Warning message A message is automatically displayed when a malfunction occurs in the EV system or an improper operation is attempted. If a warning message is shown on the multi-information display, read the message and follow the instructions. (When charging related message is displayed, If a warning message is displayed) Note: If a warning light comes on, a warning message is displayed, or the 12-volt battery is disconnected The EV system may not start. In that case, try to start the system again. If the “ READY” indicator does not come on, contact your Toyota dealer. When the traction battery is completely discharged When the EV system cannot be started due to the traction battery being completely discharged, restart the system after AC charging or DC charging. When charging, it is recommended to charge the traction battery until the traction battery charge warning light turns off in order to ensure sufficient driving distance.