ABS weirdness

[natorious]

when reversing the first time after starting the car (ie out of a parking space) the abs pedal buzz happens when you hit the brakes... to stop to start going foward... thats the only time it happens tho.. any ideas what would cause that

[nando]

are you sure it's the ABS vibration and not just the brake pad self-adjustment?

[natorious]

would that happen every time you hit the brakes the first time in reverse?

[nando]

it depends. how fast are you going in reverse? my car does it every once in a while, but not every time, I go pretty slow in reverse.

[EVOIIIM3]

You might have a caliper that is sticking, or a wheel sensor that needs to be cleaned off and gives a small false reading.