New car. as soon as around 4k miles to present 7k miles, brakes are unsafe with significant vibration in pedal when braking at moderate to highway speeds (anything over 35-40mph) under any type of braking. suspected faulty pads which are too soft leaving pad residue on rotors impacting stopping power and creating the vibration in the pedal when braking.
Vehicle braking system when stopping at any speed shakes violently, started about 6000 miles and continues even after several repair attempts