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Low Voltage Battery (2012 Model)
Auxiliary Battery
• The Prius Plug-in hybrid contains a sealed lead-acid 12 Volt battery. The
12 Volt auxiliary battery powers the vehicle’s electrical system similar to a
conventional vehicle. As with conventional vehicles, the negative terminal
of the auxiliary battery is grounded to the metal chassis of the vehicle.
• The auxiliary battery is located in the cargo area. It is concealed by a fabric
cover, tire repair kit, and foam insert on the passenger side in the rear
quarter panel well.
NOTE:
An under hood label shows the location of the HV battery assembly
(traction battery) and 12 Volt auxiliary battery.
Remove Deck Board and Auxiliary Box 12 V Auxiliary Battery
Battery Location Label
12 Volt Auxiliary Battery