Crazy brake problem I can't figure out

Discussion in 'Gen 2 Prius Main Forum' started by priuslyfe, May 15, 2025 at 5:28 PM.

  1. priuslyfe

    priuslyfe Member

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    Vehicle:
    2008 Prius
    Model:
    Touring
    This has occurred several times while reversing out of a parking space. Basically, I've been parked at a store for a short while (less than 15 minutes). However, when I back the 2007 Prius out, 1) the brakes don't catch initially and 2) the car stops so abruptly I'm certain that I've hit something (or someone). This entire sequence occurs within a few feet of starting the car and backing out. Today I backed out a parking spot, car stopped like I hit something; I then got out of the car because I expected that I had run over someone's body...neither person nor object were there though.

    What I do (and have always done/no issues) but now with unexpected results:

    1. get in car and apply the brake with foot
    2. start car and put in reverse
    3. release the brake and reverse but the car now "rolls" without any tension from the brake being released
    4. as soon as I realize I'm rolling, I panic and reapply the brake
    5. car abruptly stops (to the point of shuddering stop)
    6. then drive away is fine

    Checked the brake fluid and last time my tires were inspected about 3 months ago they told me my front brakes were still good/had life in them. Is this an indicator of the brake actuator going bad (car has 340,000 miles)?

    Thoughts?
     
  2. Tombukt2

    Tombukt2 Senior Member

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    Vehicle:
    2009 Prius
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    And no lights or anything on the dash interesting I guess first I would bleed the brakes or just see what happens when I crack the screws or the fittings one at a time starting with the right rear do you have fluid dripping when you crack the fitting let it sit there and drip a minute does it ever stop or slow down yeah I know. Now see if the car still does it
     
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  3. priuslyfe

    priuslyfe Member

    Joined:
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    Location:
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    Vehicle:
    2008 Prius
    Model:
    Touring
    UPDATE:

    I just noticed the lack of braking ability as I tried to stop going forward at a slow speed. Its like (similar to in reverse) the brakes too a few feet to "catch".

    gonna look at my brakes/lines over the weekend. might be as simple as the front pads going bad.
     
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