Power button unresponsive in hot weather

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by DrowningInteger, Jun 23, 2025.

Page 2 of 2
  1. DrowningInteger

    DrowningInteger New Member

    Joined:
    Jun 23, 2025
    13
    3
    0
    Location:
    Arlington WA
    Vehicle:
    2006 Prius
    Model:
    N/A
    Yeah I've been putting the key in the slot just to make sure it wasn't a problem with the key.
     
    #21 DrowningInteger, Jun 26, 2025
  2. DrowningInteger

    DrowningInteger New Member

    Joined:
    Jun 23, 2025
    13
    3
    0
    Location:
    Arlington WA
    Vehicle:
    2006 Prius
    Model:
    N/A
    I pulled the glove box out to check out some of the wiring in the dash and I saw this broken brown wire. What is this for? The photo was taken in the glove box area looking at the driver side. It's near the key fob slot.

    I also found a little mouse house and some droppings in the tray under the blower motor so I'm preparing myself for some rat damage.
     

    Attached Files:

    #22 DrowningInteger, Jun 27, 2025
    Last edited: Jun 27, 2025
  3. WuTang69

    WuTang69 New Member

    Joined:
    May 22, 2025
    2
    0
    0
    Location:
    US
    Vehicle:
    2007 Prius
    Model:
    N/A
    Woah, that's super weird for a Prius, especially when it's hot! Since disconnecting the 12v battery helps, it sounds like something might be getting stuck or overheated, maybe in the "combination meter" (that's the dash display). A lot of people with older Priuses have problems with that thing. You could try looking up "Prius combination meter repair" on YouTube, it's a common fix!
     
    #23 WuTang69, Jun 30, 2025
  4. DrowningInteger

    DrowningInteger New Member

    Joined:
    Jun 23, 2025
    13
    3
    0
    Location:
    Arlington WA
    Vehicle:
    2006 Prius
    Model:
    N/A
    Ok I think I figured this out. I replaced the negative battery cable with a new OEM cable from Toyota and it hasn't had any issues starting even after sitting a few days in 90 degree weather. I guess it really does always comes back to the 12v system. It turns out the broken wire in the dash was unrelated to the starting issue, but it did fix the intermittent screen flickering issue I was having.
     
    #24 DrowningInteger, Jul 14, 2025 at 2:20 PM
    Brian1954 and bisco like this.
(You must log in or sign up to post here.)
Page 2 of 2