80's sci fi movie where a man or android drives underground across America

It could be Circuitry Man (1990)--as mentioned in the review here it's set in a future where all cities have been relocated underground due to aboveground pollution, and the story involves a female bodyguard traveling with a "bio-synthetic" gigolo to deliver some illegal microchips from Los Angeles to New York. Though the review mentions that much of the cross-country trip takes place in the aboveground wastelands rather than the underground setting of the city scenes.