His co-host Chris Evans quit the show after one series, saying he gave it his best shot but it was “not enough”.
After he resigned, Evans said LeBlanc is the “captain” that the show needs going forward.
Asked by television critics in Los Angeles if he would come back to the BBC programme, LeBlanc said: “I don’t know. I’d like to. There’s nothing officially happening yet. Follow the BBC.”
Radio 2 DJ Evans has previously said the motoring show and the former Friends star “were made for each other” and heaped praise on LeBlanc for his dedication to the programme.
Evans described working on Top Gear as an “honour, privilege and a pleasure” and he had tried his best, but said it was “not meant to be”.
The BBC has said it has no plans to replace Evans when Top Gear returns for a 24th season.
Facing questions from critics, LeBlanc said his favourite part about appearing on the series was “probably the travel”, adding that he visited places including South Africa, Morocco, and Ireland.
He added: “That show has a pretty broad demographic. Everybody can relate to an automobile.”
LeBlanc was promoting his new show Man With A Plan on American network CBS, in which he plays a father who cares for his children after his wife takes a full-time job. He said: “This is a new thing, a new character for me, a whole new side of me and I’m looking forward to it.”
LeBlanc added that his tenure on sitcom Friends had made him critical of comedies, saying: “I’m a joke snob. I don’t love what you call low-hanging fruit. I don’t like that kind of stuff. I tend to go for a smarter joke, and if there’s a discussion about a joke that not everyone will get it, that doesn’t scare me away from the joke... I’d rather do jokes that take a little bit of thought.”