ABS ACTIVATES DURING BRAKING OVER ROUGH SURFACES CAUSING BRAKE PEDAL TO FEEL SPONGY AND SOFT AFTERWARDS. DIMINISHED BRAKE PERFORMANCE AFTER ACTIVATION OF ABS CAUSING INCREASED STOPPING DISTANCE. BLEEDING OF LINES AND ABS UNIT SEEMS TO IMPROVE BRAKE PERFORMANCE SLIGHTLY, BUT NEVER TO 100% I AM AN AUTOMOTIVE TECHNICIAN WITH OVER 15YRS EXPERIENCE, AND THIS IS MY PERSONAL VEHICLE. THIS HAS BEEN AN ONGOING PROBLEM SINCE I PURCHASED THIS VEHICLE IN 2011.