Battery died now right side display is black

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Linda57, Oct 20, 2023.

  1. Linda57

    Linda57 New Member

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    My overhead lights stayed on all night so the 12v died. Joyfully ripped the rear stuff up in 100 degree sun to jump it off. Drove it around a little to get that charged back up. Now the right side of my display panel is black. Please tell me it is something simple and I can fix it myself. Thanks
     
    #1 Linda57, Oct 20, 2023
  2. Brian1954

    Brian1954 Senior Member

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    FYI, There is a jump point in the front fuse box under the hood that is easier to use than connecting at the 12v battery in the back. Look in the owners manual for more information.

    Posted via the PriusChat mobile app.
     
    #2 Brian1954, Oct 21, 2023
  3. Tombukt2

    Tombukt2 Senior Member

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    What you may want to be doing here is putting the battery on a trickle charger. Let the battery charge up and then ascertain that you actually have around 12 and a half 12.4 volts standing after you unplug the charger come back and check it about an hour later If you're falling the voltage you need to rectify that then you may want to unplug the battery for about 5 minutes or so let the car just completely level off no charge completely dead and then reconnect the 12 volt and see what you got
     
    #3 Tombukt2, Oct 21, 2023
  4. Linda57

    Linda57 New Member

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    Thanks. Will check that if it happens again but that issue is done. Why is half my display panel black???
     
    #4 Linda57, Oct 21, 2023
  5. Linda57

    Linda57 New Member

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    The battery is fine now. Half my display panel is black. I only see the speedometer part right in front of me. The odometer and energy display is gone. What do I do???
     
    #5 Linda57, Oct 21, 2023
  6. bisco

    bisco cookie crumbler

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    what voltage is the battery testing under load?
     
    #6 bisco, Oct 22, 2023
  7. Linda57

    Linda57 New Member

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    i have no clue. I don’t have a tester. All I know is it starts but half the display screen is black
     
    #7 Linda57, Oct 22, 2023
  8. bisco

    bisco cookie crumbler

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    another thing is to make sure nothing is on the dash in front of the display, blocking the mirror image of the meter
     
    #8 bisco, Oct 22, 2023
  9. Mr. F

    Mr. F Active Member

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    Could you post a picture?
     
    #8 Mr. F, Oct 22, 2023
  10. Brian1954

    Brian1954 Senior Member

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    I did some searching on this forum, and I read a few other threads where this happened. You need to fully charge the 12v battery. Driving it a little while will not fully charge the battery. The best thing to do is buy a small smart charger ( 1 to 4 amps) and use it on the battery for 18 to 24 hours to fully charge the battery. The other option is to remove the battery and take it to an auto parts store for a battery test and charge.

    How old is your 12v battery?

    Posted via the PriusChat mobile app.
     
    #8 Brian1954, Oct 22, 2023
  11. ASRDogman

    ASRDogman Senior Member

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    If you search online you'll find places that fix that. Sometimes it's a capacitor and
    other times it's a poor solder joint.

     
    #8 ASRDogman, Oct 23, 2023
  12. bisco

    bisco cookie crumbler

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    you can get a free load test at auto zone
     
    #9 bisco, Oct 23, 2023
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  13. Linda57

    Linda57 New Member

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    Thanks! Will go tomorrow
     
    #9 Linda57, Oct 23, 2023
  14. Linda57

    Linda57 New Member

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    Wasn’t able to try anything since Saturday but when I went out and started it today everything is fine! Thanks all for help(y)
     
    #11 Linda57, Oct 24, 2023
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  15. bisco

    bisco cookie crumbler

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    glad to hear it, all the best!
     
    #12 bisco, Oct 24, 2023
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