I purchased a XC40 T4 just two months ago. Today when I stopped the car and was waiting in the left turn lane, the auto start/stop kicked in and shut down the engine completely. I had to restart the car from scratch (step on the brake with my foot and press the start button, shift the gear from P to D again) before I can move the car again. It took me about a minute to realize what happened and took the right steps to restart the car while my young daughter was sitting next to me--a pretty freaky experience. Does anyone know what is the problem? Thanks in advance for your help.