Brake Loud Noise problems of the 2014 Acura MDX

Drove the vehicle (22,000 miles) on the highway through death valley in September with temperature about 105 f. On the downward side of a pass on hwy 395 and was driving about 45 mph, came into a view area and used the brakes. The vehicle violently shook with a loud noise engaged also used the emergency brake and it continued to roll forward. I did get it stopped and it sat for about 15 minutes while I was out taking pictures. Got back in and slowly started down the road and there was a very small feel of vibration within the next 10 minutes and then it was normal again. Since it wasn¿t an immediate issue after I got back didn¿t immediately take it to the dealer as it wasn¿t been used. The dealer is 115 miles away so it takes a schedule to turn it in. On 3 December did take it in and reported the problem they came up with the problem as brake pulsation with rotors that need to be resurfaced. What occurred was more than pulsating brakes since it has not happened again and if it was just that it should still stop, as necessary.