The former Lille boss took the reins at the Olimpico and is hoping to return to Europe with the club after they managed a sixth-placed finish in 2012-13
The capital club endured a turbulent 2012-13, finishing in sixth place under the tutelage of interim boss Aurelio Andreazzoli.
Garcia replaced the 59-year-old after five successful years with Lille and says he is looking forward to the challenge at hand.
“There is a competitive squad here. Now the important thing is that we get back into Europe – if that is through the biggest door [the Champions League] then that would be better,” he told reporters.
“To do that I want to get to know all of the squad and then aim to strengthen it.
“I’m ambitious and we’ll work hard. I am afraid of nothing and I’m here to win with a side that enjoys playing football and entertaining the fans.”
The 49-year-old added that he is unfazed with the fact he was not the club’s first choice to fill the vacant position in the Italian capital.
“The important thing is not being the first choice for a club, but to impose yourself as a coach. I've been in contact with Roma for two years and I’m proud to be here.”