Brake Grinding Noise problems of the 2014 Chevrolet Silverado

Tl-the contact owns a 2014 Chevrolet Silverado. The contact stated that while driving 35 mph, he attempted to make a turn and his brakes failed without warning. The contact stated that while depressing the brake pedal, it became stiff and unresponsive. The contact had to put more pressure on the brake pedal just to get the vehicle to slow down. The contact also stated that the brakes were making a grinding noise. The vehicle was taken to a dealer where it was diagnosed that the vacuum pump assembly needed to be replaced. The repairs were done. The manufacturer was made aware of the failure. The failure mileage was 43,000. Ed.