2013 Prius Warning lights

Discussion in 'Gen 3 Prius Technical Discussion' started by OldJack, Feb 26, 2020.

  1. OldJack

    OldJack New Member

    Joined:
    Feb 26, 2020
    2
    0
    0
    Location:
    Minnesota
    Vehicle:
    2013 Prius
    Model:
    III
    This just started happening with my Prius when I first push the start button. All the warning lights come on as normal, then all of the sudden everything goes black to include the display, interior lights, and exterior lights. The Malfunction Indicator Lamp dimly starts to blink with sometimes in unison with a click from the engine. This light gets brighter until eventually everything turns back on. It seems to run fine after this, but when I start it up again, it tends to repeat the process. I have had issues also with the display for the radio/phone all the sudden blacking out and rebooting when I am driving. I have made an appointment for my Prius to be checked out, just wondering if anyone knows what this would be.
     
  2. dig4dirt

    dig4dirt MoonGlow

    Joined:
    Apr 6, 2012
    814
    483
    0
    Location:
    Lancaster Co PA
    Vehicle:
    2014 Prius c
    Model:
    Two
    You ever check or change the 12v accessory battery in back?
     
    jerrymildred likes this.
  3. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    3,761
    1,387
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Yeah either the 12v or the first relays/systems/circuit that fires up everything into ready mode. As in, inspect ground wire and all connections to 12v.
     
  4. Attila Fekete

    Attila Fekete Junior Member

    Joined:
    Apr 5, 2019
    79
    33
    0
    Location:
    Budapest, Hungary
    Vehicle:
    2012 Prius
    Model:
    N/A
    How about the 12V battery?
    (Some guys were quicker.)
     
  5. OldJack

    OldJack New Member

    Joined:
    Feb 26, 2020
    2
    0
    0
    Location:
    Minnesota
    Vehicle:
    2013 Prius
    Model:
    III
    I will give it a look. Thanks!
     
  6. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    3,761
    1,387
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Also try this:

     
Loading...