I seem to have the same braking issue as many others on this forum. In essence, when I'm coming to a halt at very low speeds, the traction control and abs activate. The same happens when taking of at low speeds, where I will hear buzzing, the brake pedal will slightly dip, the traction control will come on and then eventually after all that drama the car will move off. This problem will totally disappear if the VSC is switched off. The problem is though more noticeable if I'm taking a right turn from stationary. The problem seems to be the same as what other members are experiencing. However I took the car to lexus and they said (in a very rude and unprofessional manner) it's the ECU at fault as it is not seeing sensors between 1 - 4 mph, Took the car to a very good specialist who did carry out extensive diagnostics and stated otherwise. He showed me proof on a diagnostic scanner that the ecu was seeing the sensor between 1 - 4 mph. He also showed me results of the sensor on a graph between 1 - 4 mph. The graph line was 'jagged', which indicated that the abs/vsc was kicking in. He proceeded to clean both front vsc sensors and lo and behold, the braking abs issue disappeared! However the problem at take off still remains. The mechanic did confess that further diagnostics is needed but couldn't get round to it. I trust the mechanic and he is an honest man without a shadow of doubt. So, please guys help and share any details of revelations regarding this issue that I experience.
As a side note, taking the car to get a 4 wheel alignment as the alignment is bang out. I will be chuffed if that fixes the problem.