My car was bumped in the right rear bumper in a parking lot. the other vehicle was not traveling more than 3 mph. it left a small line of white paint on the bumper but the bumper was undamaged. the blind spot sensor malfunction light came on. i took the car to the dealership for repair. the dealership quoted $670 for the sensor plus $300 for labor. i confirmed the price of the part with mazda usa. this vehicle has a serious design defect if it can't withstand a 3 mph impart without causing $1,000 in damange. mazda usa is using its monopoly on supplying parts to gouge consumers. the wholesale cost of the part to mazda can't be more than $50. my only choice is to pay the outrageous cost or drive my vehicle without one of its safety features.