None.

Keaton is doing a slide show near the beginning of the film. There is a slide of a woman with a low neckline. Cleavage. He makes a remark about her "putting out" engines. "Key thing being 'putting out.'"

Some of the car builder men have stickers of women dressed provocatively on their work stations.

there is a fight between hunt and buster in a grocery store, other than that there is another fight but no blood shown.

The PG-13 rating comes from one use of the "F" word. Plus infrequent use of - "shit" "ass" "sons of bitches", "goddamn" (twice), and "hell".

Some smoking in the film.