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Where is the auxiliary battery located in the Toyota Prius?

Model: Toyota Prius Xw30, MK 2 - Years 2009-2015
Part: Battery

In this video, you can see where the auxiliary battery is located in the Toyota Prius and how to proceed if you need to replace it. As shown, it is not positioned inside the engine bay like in most vehicles, but is located inside the boot. To access it and then remove it, first open the tailgate, then lift the floor panel and remove the plastic basket. Once done, disconnect both terminals starting with the positive, unscrew the bolts of the mounting bracket, and extract the battery from the housing. Follow the reverse procedure to fit the replacement.

Updated on 4 August 2026 by ScegliAuto

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