1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Dash lights out after replacing 12 V battery.

Discussion in 'Newbie Forum' started by Dano1956, Dec 4, 2016.

  1. Dano1956

    Dano1956 New Member

    Joined:
    Dec 4, 2016
    3
    1
    0
    Location:
    Golden, MS
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Greetings. I just replaced the 12 v battery on my 2007 Prius. Everything worked fine. I drove it around town for about 30 minutes. I restarted the engine. Everything looked good. 2 days later I started the engine but the dash lights were out. Computer lights were on. Engine wouldn't cut off unless the power button was held down. What's going on?
     
    #1 Dano1956, Dec 4, 2016
  2. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    55,603
    38,751
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Maybe start by checking the 12 volt battery's voltage with a digital multi-meter.

    Did the last battery go suddenly? Just wondering, maybe there's a phantom drain on your batteries? Just a thought.
     
    #2 Mendel Leisk, Dec 4, 2016
  3. Dano1956

    Dano1956 New Member

    Joined:
    Dec 4, 2016
    3
    1
    0
    Location:
    Golden, MS
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Yes. No problem then one day nothing except dash lights and the red triangle. It had been sitting for a couple weeks.
     
    #3 Dano1956, Dec 4, 2016
    Mendel Leisk likes this.
  4. dubit

    dubit Senior Member

    Joined:
    Dec 3, 2016
    850
    538
    23
    Location:
    Indiana
    Vehicle:
    2016 Prius c
    Model:
    Two
    This can happen on GM product if the battery was disconnected incorrectly. Requires (at times) a whole new dash because of a voltage spike. (GM does not have a fuse on the circuit board to prevent this)

    I would research any tech manuals to see if the Prius dash is protected by a fuse. If so, check that. I would also check my battery connections again. Always remove negative terminal first!
     
    #4 dubit, Dec 4, 2016
  5. Dano1956

    Dano1956 New Member

    Joined:
    Dec 4, 2016
    3
    1
    0
    Location:
    Golden, MS
    Vehicle:
    2007 Prius
    Model:
    Four Touring
    Thanks. I'll check.
     
    #5 Dano1956, Dec 4, 2016
  6. Jmack111

    Jmack111 Member

    Joined:
    Nov 3, 2009
    370
    78
    0
    Location:
    Tacoma wa
    Vehicle:
    2004 Prius
    Model:
    N/A
    #6 Jmack111, Feb 10, 2017
    RCO likes this.
  7. Jmack111

    Jmack111 Member

    Joined:
    Nov 3, 2009
    370
    78
    0
    Location:
    Tacoma wa
    Vehicle:
    2004 Prius
    Model:
    N/A
    #7 Jmack111, Feb 10, 2017
    RCO likes this.
(You must log in or sign up to post here.)