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518 8-2. Steps to take in an emergency cleared. When the battery is depleted, have the vehicle inspected at your Toyota dealer. ● Some systems may require initial- ization. (P.556) ■ When removing the battery ter- minals When the battery terminals are removed, the information stored in the ECU is cleared. Before remov- ing the battery terminals, contact your Toyota dealer. ■ Charging the battery The electricity stored in the battery will discharge gradually even when the vehicle is not in use, due to nat- ural discharge and the draining effects of certain electrical appli- ances. If the vehicle is left for a long time, the battery may discharge, and the engine may be unable to start. (The battery recharges auto- matically during driving.) ■ When recharging or replacing the battery (vehicles with a smart key system) ● In some cases, it may not be pos- sible to unlock the doors using the smart key system when the bat- tery is discharged. Use the wire- less remote control or the mechanical key to lock or unlock the doors. ● The engine may not start on the first attempt after the battery has recharged but will start normally after the second attempt. This is not a malfunction. ● The engine switch mode is memo- rized by the vehicle. When the battery is reconnected, the system will return to the mode it was in before the battery was dis- charged. Before disconnecting the battery, turn the engine switch off. If you are unsure what mode the engine switch was in before the battery discharged, be especially careful when reconnecting the battery. ■ When replacing the battery ● Use a battery that conforms to European regulations. ● Use a battery with the same case size as the previous battery and an equivalent 20 hour rate capac- ity (20HR) or greater. • If the sizes differ, the battery can- not be properly secured. • If the 20 hour rate capacity is low, even if the time period where the vehicle is not used is a short time, the battery may discharge and the engine may not be able to start. ● For details, consult your Toyota dealer. WARNING ■ When removing the battery terminals Always remove the negative (-) terminal first. If the positive (+) ter- minal contacts any metal in the surrounding area when the posi- tive (+) terminal is removed, a spark may occur, leading to a fire in addition to electrical shocks and death or serious injury. ■ Avoiding battery fires or explosions Observe the following precautions to prevent accidentally igniting the flammable gas that may be emit- ted from the battery: ● Make sure each jumper cable is connected to the correct termi- nal and that it is not unintention- ally in contact with any other than the intended terminal. ● Do not allow the other end of the jumper cable connected to the “+” terminal to come into contact with any other parts or metal surfaces in the area, such as brackets or unpainted metal. |