Harris, Flintoff and Paddy McGuinness have hosted Top Gear together since 2019, but filming was stopped following the crash.
Harris said he was “qualified” to make health and safety calls because he has been racing “a long time”.
He added of his co-stars: “They weren’t. One of them is an actor-comedian. The other guy is a pro cricket player.
“Brilliant entertainers. They were great hosts. But their roles were to make people laugh. And my role was to tell people what cars were like.”
He added: “What’s really killed me is that no one’s ever really acknowledged the fact that I called it beforehand.”
He continued: “I thought I’d done the right thing. I’m not very good at that. I normally just go with the flow but I saw this coming.
“I thought I did the right thing. I went to the BBC and I found out really that no one had taken me very seriously.”