The brakes pulsate and grab. Rotars were turned on front at 23K. At 33K brake pads are cracked and rotars worn; both are being replaced under warranty. Is this common on Subarus? What can I expect in the future? My VW Rabbit went 203K, Honda Civic 127K and still kicking, and Ford Aerostar 114K all with no such problems, so I don't think it is caused by my driving habits. Input? Thank you!