Other mistake: Just after Michael finds Devon in the trailer, as he gets in K.I.T.T you see him put the gear into D and then he reverses. Then it shows you him putting the gear into R and then drives off. Looks like they got the footage the wrong way round in the edit.
Other mistake: T.J. Hooker and Vince Romano pursue two men who robbed the box office during a Beach Boys concert. The action takes place in the lobby of the Los Angeles Sports Arena, which is an indoor venue, but the footage of the Beach Boys performing is from an outdoor concert.