2008 Toyota Prius – Traction Control Light + Beeping at 53+ MPH, Off <30 MPH...

Awhile back we put new tires on our 2008 Toyota Prius.  When we did this, we had the alignment done as well.  Ever since it came out of the tire shop, it seemed like at random the traction control light would come on and the car would make a very loud “beep beep beep” until you got below 30mph.

I was getting so frustrated with this that I almost traded the car in.  We didn’t buy cheap-shit tires, and the place that installed the tires gave me the “WTF do you want me to do about it look” when I went back in to ask them about it.  I checked every single detail on the tires.  I tried different air pressures.  I rotated the tires every which way.  Then, by dumb luck I stumbled on an article on alignment and suspension specs over at BrakeandFrontEnd.

Long story short, if you get your Prius aligned and it goes on a beeping rampage, the shop didn’t reset the sensors, so just reboot your car by disconnecting the black (ground) wire from the battery and walk away for a few minutes.  Come back and reconnect the wire and no more maddening beeping!

Yeah, the “reboot” causes your car to forget the current sensor data and reload it fresh from the newly aligned sensors.  I really hope this helps someone – a Prius acting like the bus from Little Miss Sunshine really sucks.

  4 comments for “2008 Toyota Prius – Traction Control Light + Beeping at 53+ MPH, Off <30 MPH...

  1. Rob
    September 25, 2016 at 7:38 PM

    I’m so glad you posted this! I had the exact same problem after having new tires mounted and got the same response from the shop. I had a hard time believing it was a coincidence that the problem started immediately after I left their shop and they simply could not believe they could have done anything to cause the problem. I’ve been manually disabling the traction control for months since I haven’t been able to find any advice or fixes for this problem!

  2. Amber Long
    July 30, 2017 at 8:26 PM

    A huge thank you! I was all set to gift my 2008 Prius to my very thankful niece when a tire needed replacing. After the dealership put the new tire on, same issue with traction control warning light, no beeping but the engine would slow at 62mph+. After the dealer and another shop shrugged their shoulders, my husband was ready to trade it off leaving my niece without wheels. After a frantic late night search, I found this post and it worked!! We are all so happy and grateful!

  3. RevisionX
    August 2, 2017 at 4:50 PM

    Always glad to see this post helped!

  4. March 23, 2018 at 1:42 AM

    Massive, helpful, insight!

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