Morgan spoke with ET's Katie Krause at the premiere of his new comedy in Westwood, California, on Monday, where he said he "tried not to think about [the accident]" at all, and worked hard to "stay in the moment."
"If I’d have thought about it, I might have got shook. So I didn’t think about it," the Saturday Night Live alum shared. "I got back on the bike and started riding."
"Thank God I had a lot of loving crew that gave me a lot of love and support," Morgan said of his co-stars -- Ice Cube, Charlie Day and Jillian Bell -- as well as Fist Fight director Richard Keen. "They believed in me and they allowed me and gave the space to be creative on set, so with that comfortability... I just started being funny again."
In June 2014, Morgan's limousine was struck by a Walmart tractor-trailer on the New Jersey Turnpike. The deadly collision killed Morgan's friend and fellow passenger, James McNair, and required Morgan to undergo extensive rehabilitation and physical therapy.
Morgan has often credited his wife, Megan Wollover, and their daughter, Maven, with helping him heal after the fatal accident, and his loving family came with him to the premiere to show their support.
"I never feel the pressure to be funny with my family," Morgan shared. "We have fun in the family, but I don't feel the pressure to be funny. At home I’m not Tracy Morgan, at home I’m dad, husband, father and friend. And that's that."
Morgan's new film, Fist Fight, hits theaters this Friday.