Toyota 2010 Prius Owner's Manual page 461

4-3. Do-it-yourself maintenance
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After recharging/reconnecting the 12 volt battery
●
Unlocking the doors using the smart key system may not be possible
immediately after disconnecting 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 battery is
reconnected, the vehicle will return the "POWER" switch mode to the sta-
tus it was in before the battery was disconnected. Make sure to turn off
the power before disconnect the battery. Take extra care when connect-
ing the battery if the "POWER" switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
CAUTION
■
Chemicals in the 12 volt battery
The 12 volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12 volt battery:
●
Do not cause sparks by touching the 12 volt battery terminals with tools.
●
Do not smoke or light a match near the 12 volt battery.
●
Avoid contact with eyes, skin and clothes.
●
Never inhale or swallow electrolyte.
●
Wear protective safety glasses when working near the 12 volt battery.
●
Keep children away from the 12 volt battery.
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