Re-starts by itself. Won't start. Loses 12V battery power?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by PriusOwner428, May 19, 2026 at 10:42 PM.

Tags:
Page 2 of 2
  1. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
    2,513
    1,006
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    There is no alternator in a Prius. There is a DC to DC converter that is located inside the inverter assembly. It converts the high voltage supplied by the hybrid battery, when the car is in Ready, down to low voltage (14.1v to ~ 13.2v) for the 12v system in the car.
     
    #21 Brian1954, May 22, 2026 at 7:49 PM
    Last edited: May 22, 2026 at 9:50 PM
    PriusOwner428 likes this.
(You must log in or sign up to post here.)
Page 2 of 2