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  1. RRxing

    RRxing Senior Member

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    Had my brake recall done yesterday. Appears they didn't disconnect the 12V battery, since my radio presets and windows were okay. I also don't notice any difference in brake feel, although it seems the booster pump doesn't come on as often and is a lot quieter when it does. Except for the service tech overfilling the brake fluid reservoir by about 1/2" (which I had corrected this morning), everything seems hunky-dory.
     
  2. southjerseycraig

    southjerseycraig Active Member

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  3. southjerseycraig

    southjerseycraig Active Member

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    My experience was more like Roland's. I had to redo the radio presents. In addition, somehow the clock got re-set. It used to run three minutes ahead; now it runs three minutes behind. Since the clock runs fast -- I had the original clock replaced, and the replacement does the same thing -- eventually it will get back to where it was.
     
  4. kgall

    kgall Active Member

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    I feel no difference. Unlike the original (2010 or 2011 IIRC) Prius brake recall, which was designed to change the "feel" of the brakes in certain situations, this recall is designed to prevent a part failure. So long as the part hasn't failed, there shouldn't be a difference in feel so far as I can tell.
     
  5. kgall

    kgall Active Member

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    In addition to the radio presets and clock, it wiped out the Trip A and B memories. So my Trip B, which I never reset since the purchase of the car, ended at 59K miles or so--and showed 49.3 mpg (really 46.9, for the approx 1500 fewer miles that I did hand calculations for).
    If they can make the odometer memory continue, why don't they do it for the trip odos? Oh, well, a new trip B has started.
     
  6. richard13

    richard13 Junior Member

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    In my case they did not disconnect the battery (or at least in a way I would notice). To me, the brakes feel the same as they did before. I do notice some squeeks about the car when I first start driving but not once it's warmed up. This may or may not be related to the brake work.

    One thing that I haven't seen since (and it may happen yet) is that ever since I bought the car the brakes would occasionally "break free". Every so often, while braking, if I hit a pothole or similar road impediment the brakes stop braking and I have to release/press down on the brake pedal again. When it happens it causes the sensation of "sudden acceleration" but the car isn't really accelerating, it's just not braking anymore. It's kind of hard to explain. Anyway, if this recall fixed that - and only time will tell - I'd be very happy. :)
     
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  7. spiderman

    spiderman wretched

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    How odd, mine is overfilled too.
     
  8. southjerseycraig

    southjerseycraig Active Member

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    Richard, the "brake free" problem was supposedly fixed by the 2011 Prius recall. That recall did not completely solve the problem, but it helped a lot. Maybe you should make sure that your vehicle went through the procedures called for by that recall. The current recall is not intended to solve that problem.

    It is my understanding that the problem you experience is largely the result of the car switching from regenerative braking to frictive braking, but others will know more about that than I do; I have also heard that it has to do with the ABS braking system, and that the problem happens to some degree on all cars with ABS. It is more noticeable about the Prius, I have heard, than on a larger car that might not need ABS as much. But at this point I have to say that I'm at or beyond the limits of my knowledge.
     
  9. richard13

    richard13 Junior Member

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    Thanks for the response Craig. I agree and have always thought that this was supposed to have been fixed by the previous recall but even after they fixed that I continued to have this problem. I have asked the dealership a couple times to make sure that it was done and they always say that it has.

    This last time, when they fixed this recall, I talked it over with the advisor and he said the same thing you mention here. That what I'm describing is an issue with ABS and that it's kind of expected to happen under those conditions. I've had ABS on other cars and never experienced this issue. I'm not that concerned really, I mean, it's not like the car is out of control. But I am a little worried that this condition will occur at some unfortunate time. For example: the guy in front of me stops short and I brake but hit a pot hole just then resulting in me rear ending him.
     
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  10. spiderman

    spiderman wretched

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    Chances are that won't happen as the pause is generally noted when just riding the brake (gradual)... where as in an emergency stop as described above, you would likely be calling on the friction brakes before hitting the pothole and no pause would occur.
     
  11. southjerseycraig

    southjerseycraig Active Member

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    I agree there is still a trace of the "pothole" problem, but it seemed to get a lot better after the 2011 recall. I had ABS in my 1998 Toyota Camry (may it rest in peace) and, like you, Richard, I *never* had the pothole braking issue.

    I find that I am *very* cautious in the Prius. In part, that's due to my nagging sense that there is something odd about the brakes.
     
  12. RRxing

    RRxing Senior Member

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    In this thread "DOH" Recall - Brake Booster Pump Assembly (Accumulator) | PriusChat I mentioned that my paperwork indicated that they used 4 bottles of 00475-1BF03 brake fluid, which comes in 10 oz. bottles. Others on that thread said that they used 3 or 6 bottles. Curiously inconsistent. While waiting for the dealer to suck out an ounce or two yesterday, I was browsing around the parts department and noticed that they were selling Toyota brake fluid in 12 oz. bottles (I didn't write down the part number.) Anyway, my brake fluid reservoir is now at the MAX level.
     
  13. jdcollins5

    jdcollins5 Senior Member

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    Took mine in this morning at 8:00 and the SA called at 11:00 and said the car was ready. Interesting thing was that the SA that checked me in told me that they would be replacing Booster Pump and Master Cylinder since they were all part of the same assembly. When I picked the car up the SA that checked me in was out to lunch and when I asked the SA that checked me out why the master cylinder was not on the service report he said that they inspect the master cylinder and only replace it if necessary ! Don't you just love the common knowledge at these dealerships ? (y)

    I would really like to know what they need to see in order to change the Master Cylinder ? I wonder if it is a build date or a part number ?

    Only my Booster Pump Assembly was replaced. I can see the new Booster Pump assembly and what looks like a new valve manifold just above it. They only show 2 units of brake fluid and mine was filled just below the Max line. I have marked it with a sharpie so I can monitor the level.

    Qty. 1 - 04002-20247 Pump Assy. Brake
    Qty. 2 - 00475-1BF03 Brake Fluid

    They did disconnect the battery as my radio presets were gone, which will be good to reset the ECU's and go through the re-learn functions. I did not notice any difference in the feel of the brakes. Of course I was not having any problems with the brakes before the recall.
     
  14. kgall

    kgall Active Member

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    For my general information, what's the problem with overfilling with brake fluid?
     
  15. RRxing

    RRxing Senior Member

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    The main problem I have is that the service "technician" is probably just following a script instead of observing what is actually happening when servicing the vehicle. The MAX level is there for a reason, most likely to prevent the fluid from overflowing when replacing the brake pads, and I trust that the Toyota engineers know what they're doing a heck of alot more than the dealership employees.
     
  16. jdcollins5

    jdcollins5 Senior Member

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    When you push the brake caliper back in when installing new brake pads, if the brake fluid reservoir is too full it will overflow. I would just remove the overfill fluid.
     
  17. Jeffrey Jessup

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    You mentioned that since you didn't have an appointment you were glad they were helping you. It seems they were not happy to be helping you without the appointment and that, IMHO, is the reason for the long wait. All the other BS was probably just an attempt to get you to leave the car there so they could fit it into the schedule at their convenience. They should have just removed the plastic part that was dragging under the car and scheduled you an appointment to address the issues more fully at another time that would be more convenient for you. They obviously didn't want to put the other customers service appointments behind so you paid the price by getting the run around. I would bet if you had watched your car the whole time you were waiting, they didn't spend more than a few minutes to an hour actually working on it. Service Advisers don't want to get customer complaints so they will take the path of least numbers possible. You being 1 person compared to ever how many others that would have possibly been incurred.