The Brazilian completed a £25m switch to Chinese Super League side Jiangsu Suning, having spent the previous six years at Stamford Bridge.
Asked by The Sun why he had opted for such a move, the 29-year-old insisted that unlike under previous boss Jose Mourinho, he was not given a fair chance of featuring as part of Hiddink's team.
"One of the big reasons I left Chelsea was the arrival of the new coach," said Ramires.
"It wasn't just because I had a good relationship with Jose. But, when he was in charge, I knew there was a chance of playing and that the fight for a place in the team was always open.
"Yet when Hiddink arrived, he took me out of the side for no reason. I couldn't understand why because I had played well and fought hard for a team that was having difficulties. He didn't like me as a player or my way and decided very rashly that he wasn't going to give me an opportunity to fight for a place in his team."
Ramires scored 37 goals during his 246 outings for the Blues.