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  1. Priusfam23
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    Does a weak 12v battery affect the Hybrid battery system?

    Definitely!! Our 2014 Prius was having this exact issue. Dealer was stumped AND insisted our 12v was good. This was the car's original battery by...
    Post by: Priusfam23, Aug 19, 2023 in forum: Gen 3 Prius Fuel Economy
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