I have a Prius 1.8 2013. Bought it 6 months ago and drove it 15000 kms so far. Recently my prius brakes got some weird problem, they normally work fine but when I need hard braking it doesn’t work at all as the abs engages. I can hear the ABS sound but the car slows down very slowly like im just barely touching the brake pedal. Can it be ABS problem or is it something else? I asked a local mechanic and he said if you hear the ABS sound it is working fine but I don’t think that’s true. Need expert’s view please