If you are using a semi-metallic pad, as the brake pads where-out the ABS sensors are magnetic and they will collect metal particles which will cause the sensors to malfunction, describing exactly your symptoms, you will need to take it back to the shop, have them pull the ABS sensors and clean them. Or you may have a bad proportioning valve, that is the valve that applies the pressure equally to the front and the rear brakes, according to how much weight you have in the back of the car, if you need a more detailed explanation let me know.
Friday, April 23rd, 2021 AT 12:35 PM