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Prius Resets after shutdown

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Kevin Caccamisi, Nov 2, 2021.

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  1. Kevin Caccamisi

    Kevin Caccamisi New Member

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    Vehicle:
    2008 Prius
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    II
    My 2008 has been running fine. Recently bought. 80k miles. The only issue is that sometimes when I push the power button to turn the car off it resets. Like doesn't turn off but the dash lights up like it's in mx mode. Power light is steady orange. Pushing power again turns it off and everything is fine. It's almost like it electronically trips out momentarily. Suggestions?
     
    #1 Kevin Caccamisi, Nov 2, 2021
  2. Another

    Another Senior Member

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    How old is 12v battery? I’d do a load test on it.
     
    #2 Another, Nov 2, 2021
    SFO likes this.
  3. Kevin Caccamisi

    Kevin Caccamisi New Member

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    II
    I have no records showing how old the 12v in it is. I did the self diagnostic check and once the electric load of mx mode (acc-mode) is activated then volts go from 12.1 v (no load) to 11.5v in acc-mode. No lights or radio on.
     
    #3 Kevin Caccamisi, Nov 2, 2021
  4. bisco

    bisco cookie crumbler

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    that's kind of low
     
    #4 bisco, Nov 2, 2021
  5. Tombukt2

    Tombukt2 Senior Member

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    That is low change it out to AGM Deka or such.

    SM-A715F ?
     
    #5 Tombukt2, Nov 2, 2021
  6. donbright

    donbright Active Member

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    Also maybe check your battery connections make sure they are tight.
     
    #6 donbright, Nov 3, 2021
  7. Another

    Another Senior Member

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    Check date code on battery. If more than three years old, get new one.
     
    #7 Another, Nov 3, 2021
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