ABS / Brake / Tire Pressure / Slip Indicator Lights on

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by RachaelFarmer, Feb 28, 2024.

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  1. RachaelFarmer

    RachaelFarmer New Member

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    2014 Prius
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    III
    Hi all,

    I have a 2014 Prius III. Yesterday morning when starting the car, the ABS, Brake, Tire Pressure, and Slip Indicator Slip Indicator lights all came on and stayed on. The car drove completely normal - didn't feel like there were any issues. Same issue today on my commute to/from work.

    I plugged in a code reader and it said "0 codes".

    For context: over the weekend, I accidentally forgot to turn the car off and drained the battery :rolleyes:. I removed the battery, charged it, and reinstalled it. Maybe I knocked a sensor or something?

    I'll try easy things first like double checking the battery area and making sure the tires are properly inflated. Any other tips?

    Thanks!
     
    #1 RachaelFarmer, Feb 28, 2024
  2. bisco

    bisco cookie crumbler

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    the 12v might be ruined. beyond that, you'll need a prius aware scanner
     
    #2 bisco, Feb 28, 2024
  3. ChapmanF

    ChapmanF Senior Member

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    Whenever you have brake system warning lights (which mean there are brake system codes) and the scan tool you are using tells you there aren't any codes, get that scan tool out of the picture and get the codes straight from the car, like this:

    Blink (a/k/a Flash) Codes – How to. | PriusChat
     
    #3 ChapmanF, Feb 28, 2024
  4. CR94

    CR94 Senior Member

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    Prii have been known to show false warnings as a result of low 12-v battery voltage.
     
    #4 CR94, Mar 1, 2024
  5. ChapmanF

    ChapmanF Senior Member

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    Also, Prii often show warnings for the exact reasons they're programmed to, and people read them and give up on understanding what those reasons were, and jump instead to thinking the warnings were false.
     
    #5 ChapmanF, Mar 2, 2024
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