2016 Volvo XC90 brakes problems

While driving on a city street I put the car in eco mode. The car was moving at the time. I noticed that the car seemed to be driving loudly. As I turned left, I saw the car was in manual mode and was in first gear. So I took my foot off of the brake to slow down the car and try to put it into drive. As I tried to move the gear shifter, the car came to a complete, sudden stop. It felt like all four wheels were suddenly and immediately locked. I could not move them, even as I hit the gas.

I purchased a 2016 xc90 in july15. Shortly after the purchase, I started to notice issues with the brakes and various other issues. I have taken the car into service 14 times since purchase with on a few for regular maintenance. Brake pads and both front and rear roters have been replaced, but the brake issue has not been resolved. I still frequently but randomly hear clicking sounds near to the brake paddle. I am mostly concerned that it happens when I am driving high speed while trying to slow down.