One problem related to brake disc pads has been reported for the 2002 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Prius based on all problems reported for the 2002 Prius.
I believe Toyota has known of the braking problem all along. I purchased new, a 2002 Prius. In 2008 my anti-locking brake system went out. The service mgr. Told me it needed a new relay, and he could fix it for $1700. I have never in my life seen a relay costing $1700. My brakes still worked, just not properly so I didn't spend the $1700. As long as Toyota can get their customers to spend $1700. There is no need to have a recall. I have around 47000 miles on the vehicle and am on my third set of rotors and brake pads. My tires actually last longer. I believe this braking problem has been around from day one. I think ray lahood should check frequency of this repair against customers records, it might reveal a consistent fault.