One problem related to brake antilock control unit/module has been reported for the 2002 Subaru Impreza. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Subaru Impreza based on all problems reported for the 2002 Impreza.
Was coming to a stop sign and there was a man hole cover recessed into the road. Had foot on brake, light pressure to come to the stop sign. When the wheel hit the manhole cover, I could feel abs kick in (vibration in pedal) and the car lost all braking power momentarily. If there had been someone in front of me, I probably would have hit them.