Esteban Gutierrez says Lewis Hamilton showed a lack of respect after gesturing at the Mexican while he was lapped at the Hungarian Grand Prix.
Hamilton encountered the Haas driver during the closing stages of the race and he was caught by Mercedes team-mate Nico Rosberg, though ultimately pulled clear once more.
Hamilton gestured his frustration at Gutierrez but the Haas youngster defended his stance.
"Not a very respectful move from him I have to say," he said.
"I have spoken to him in the past, I think he is respectful he is the world champion, but he shouldn’t do these kinds of things he should respect all of the competitors.
"You never know, maybe in the future I will be fighting a championship with him so he has to respect that."
Gutierrez also hit back at suggestions that he was ignoring the bliue flags.
"I simply had two aeroplanes coming from behind, coming very quickly!"
"Of course I was focussed on my race and they came very quickly and I was trying to find the safest place to let them by."
Gutierrez was handed a five-second penalty for the incident, which left him 13th at the finish.