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  • Brakes locking

    On the odd occasion, when braking hard & unexpectedly, the brakes on my Prado feel like they are locking. It feels like I am losing control of the car, there is the most almighty screeching, and the characteristic brake/release feeling on the brake pedal is missing. It feels like there is no ABS - in fact, it is horribly reminiscent of my old Toyota Raider (which didn't have ABS!).

    This happens even when I am not travelling at high speed - the closest I have been able to narrow it down to is unexpected braking (person stepping into road, traffic comming to a sudden stop etc.). If I brake hard, but in a controlled fashion, it doesn't happen. Thinking back on the times it has happened, I'm almost certain that every time I was on a downhill, which leads me to think it may have something to do with with the automatic gearing down?

    When I asked Toyota to test it, they (predictably) gave me a most patronising lecture on how ABS works. I may be a woman, but most of my cars have had ABS (including my 2003 Prado), so I certainly know what ABS feels like - and this ain't it!

    I was starting to think I had lost my mind, until it happened one day when my husband was driving - we almost skidded through an intersection. A couple of days later, a friend mentioned exactly the same thing happening on her 2010 Prado!?

    Has anyone had this problem, or heard anything about it?

    TIA

  • #2
    Yes - it happened to me after I first got the car (used) ..... frightened the hell out of me. I understand its the 'emergency brake' - something the car apparently 'learns' from driver behaviour. Maybe the previous driver (Toyota owned) of mine was a tad more aggressive than me? Mine now doesn't do it unless it really is an emergency - I drive it gently but progressively and it seems to have 'learnt' not to do it. hope this helps .... )

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    • #3
      It is some sort of assisted emergency braking. I had this happen once and nearly end up being rear ended.

      I have worked out that it seems to related to how quickly you move your foot between the pedals. You can bring the emergency braking effect on by moving your foot very quickly from the accelerator pedal to the brake pedal.
      [B]Steve[/B]

      2010 Silver GXL Prado 150, D4D Auto, with a few non standard bits

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      • #4
        This my first post. I have also have had a simlar experience to the one you've described, but with a twist. I was travelling to Orange from Bathurst last week when I had to brake hard to avoid a "L" plater. The Prado pulled hard to the right and felt as if the front wheel was about to lock up and release at the same time and with crunching and grinding noises. I should mention, I have a 14 month old 2010 Prado.

        I continued on to Orange testing the brakes every 10 or so kilometers. The brakes were working but still pulling to the right and with crunching and grinding noises. Coming up to some road works, I began to gently slow down. The bus in front of me had just stopped. As I pushed a little harder on the brake pedal, nothing happened, there was plenty of pedal there but the car just kept rolling! The handbrake pulled me up with a few meters to spare.

        I managed to make it to Orange (NSW) and after parking the car near my work, I called the NRMA to arrange a tow to the local Toyota Dealer. The car has now been with the dealer for a week, with all the repair activity under control and direction of Toyota Australia. At about the same time I first contacted the dealer last Tuesday, they had just received a call from another Prado owner with a simular brake problem to mine. Apparently in Toyota speak this is referred to as an Incident and as such the resolution is under the direction of Toyota Australia.

        After some persistance, Toyota arranged a loan car late on Friday afternoon so I could drive home for the weekend. So far Toyota have not been able to identify the root cause of the problem. What they do know is the rear brakes and the front left brake are all performaning normally. The front right brake seems to have a mind of its own when ever the brakes are applied.

        At this stage I have no idea when the car will be returned to me and all the local dealer will say is they will not be releasing the car to me until Toyota Australia have inspected it and signed off on the repair. To add to my pain, last weekend I had to pass up a 4x4 day trip with group of friends we had been planning for several months . If Toyota return my calls, I will update this post.

        Comment


        • #5
          It's a bit of a worry as this is the 2nd time I have heard of a complete brake failure with no real explanation. The brakes seem to have a mind of their own, mine occasionally make a very odd noise just after coming to a stop.
          [B]Steve[/B]

          2010 Silver GXL Prado 150, D4D Auto, with a few non standard bits

          Comment


          • #6
            I had a scare with bad brake fade last week on the Nathan River Road north of Borroloola. There are many creek crossings and washouts, and after having to pull up for a number in succession, the pedal went nearly to the floor, and required pumping for the remainder of the trip. Next day the pedal was normal.

            The car was not heavily loaded, and I did not really use the brakes that hard, just often, and was shocked to get serious fade. Seems a serious limitation in the Prado.

            Bushwacked
            Prado 150 GXL, ARB Bar, Warn Winch, Second Battery, OME, ARB Compressor etc.

            Comment


            • #7
              Touch wood no issues thus far with mine (16000km). It seems there are so many isues that one has to suspect QC has slipped in the production line or in the quality of parts manufactured by 'others'. I would have though that the brake design would have come straight from the 120 series as have many other driveline components.
              2010 150 Glacier White GXL D4D Auto

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              • #8
                No dramas with mine so far.
                sigpic2" King Springs, Ironman Foam Cell Shocks. 17x9 Dick Cepek wheels with 275/70/17 Maxxis Bighorn 762S. Ironman Deluxe Bullbar. Lightforce 240 XGT Lights. GME TX3100 UHF. Scanguage II. Drifta Drawers. Wetseat Covers. Toyota. Dual Battery System. MSA Seat Organiser and Table. MSA Wheel Bin. Staun Deflators. Toyota Tow Bar. Ironman Underbody Protection Plates. Waeco CF50. Performance Chip. TJM Airtec Snorkel. Sandgrabba Mats.

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                • #9
                  I have exactly the same problem. I complained several times to Toyota and was given an information brochure on the brake force assist. It does indeed time the period betwen transferring your foot off the acc and onto the brake. I have had BFA in other cars and never had it intrude in any driving situation EVER.

                  I asked why on earth have it and they explained many smaller stature drivers don't have the leg strength to press the brakes down hard enough in an emergency.

                  It drives me mad - happens quite regularly but is worst when it hasn't activated for a month or so. The worst was when I made a decision at an orange light to go or stop. I chose to stop, swapped pedals quickly (but with controlled brake pressure) and had the car throw on all brakes full force and skid and bump into the stop line in a cloud of smoke.

                  If you are someone who learned to drive before ABS you will have most likely been trained to release the pressure on the brakes after the initial stab. The worst thing is with this function if you continue to cover the pedal after a quick brake it will keep the brakes on to the max (even if your pressure is very light). When someone moves into your lane and you quickly brake and then release but cover the pedal the car will continue to brake and you run the risk of a car running up your rear. The brakes do an impressive job of pulling up the big wagon.

                  So I asked Toyota to turn this bloody thing off - they won't of course. Car might be sold to someone else etc etc. I have it on record on my service statements and I am waiting for the day a car runs up my rear and then I'll discuss it again. When demoing it to the service tech it never does it as hard and fast as it does in a real world situation.

                  Nobody likes the feeling that they are not in control of the car.

                  Comment


                  • #10
                    First input into the site.
                    I had problems with my 2009 Prado brakes. They stopped working momentarily and then picked up again on 4 occasions. One was in reverse backing down a steep driveway the others were straight forward braking. I took it back to the dealer who gave me the ABS story. I have since treaded it on a 2011 Prado and am very happy with the new machine.

                    Comment


                    • #11
                      brake issues

                      Twoarrows how did you get on with the brake issue. I have a 2010 vx petrol and have had issues twice now with the car braking badly and pulling to the left really hard. I was told by toyota tech that the stability control system was working. On each occasion i was braking uphill into left hand corner. My car is booked in next week to be looked at and am curious how you got on with your car. thanks alan
                      2010 VX 150 in Blue with UHF TX3340 Dual Batteries Anderson plug in rear concealed fridge wiring in rear and home made draw system

                      Comment


                      • #12
                        Exactly the same thing happened to be today! After three happy months with Kakadu, this scared the hell out of me. I was driving normally at 60-65km/h when suddenly a car decided to change lane and cut in front of me.

                        I wasn't trying to break hard by any standard but only applied light break pressure with the intention to slow down the car. Instead I got all out ABS wheel lock/release action going on which scared the hell out of me and worst, almost got rear ended!

                        I think I know how to apply proper break pressure without the car stupid single bit "if then else" logic.
                        What would happened if this incident ended up with an accident. Can I blame the car?
                        My rig build up.
                        [url]http://www.pradopoint.com/showthread.php?23037-KC-s-Prado-150-LC5-European-specs-build-up-thread[/url]

                        Comment


                        • #13
                          Originally posted by kcharng View Post
                          Exactly the same thing happened to be today! After three happy months with Kakadu, this scared the hell out of me. I was driving normally at 60-65km/h when suddenly a car decided to change lane and cut in front of me.

                          I wasn't trying to break hard by any standard but only applied light break pressure with the intention to slow down the car. Instead I got all out ABS wheel lock/release action going on which scared the hell out of me and worst, almost got rear ended!

                          I think I know how to apply proper break pressure without the car stupid single bit "if then else" logic.
                          What would happened if this incident ended up with an accident. Can I blame the car?
                          That is exactly why I logged it with Toyota - to cover the just in case scenario.

                          Comment


                          • #14
                            I have experienced the same locking/ABS cycling on several occasions, and now realise the speed of foot from accelerator to brake is to blame. I don't like it and neither do the people on the zebra crossings even though I stopped well in time, the screech of the tyres was and is unnecessary.

                            Comment


                            • #15
                              Hi There,

                              Ive had the same issue and mentioned it to my Toyota service centre. I was advised that they can simply 'reset' the system so it relearns my driving technique, and hopefully that will fix the issue. I guess i'd better jump onto the brakes quickly for the next month or so
                              2010 Prado GX 3.0L TD - "Paul" - TJM XGS 40mm Lift Kit, Firestone Coilrite Airbags, 5000kg Rated Front Recovery Points, Sure Power Battery Isolator and Dual Battery Setup, Airtec Snorkel, HID High Beam Headlights.
                              2008 Jayco Dove Outback - "Davo"

                              Comment

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