Reports of lewd behaviour by some male visitors at last year's event prompted Belgium's equal opportunities minister Joelle Milquet to write to the organisers.
She criticised the use of women in body-hugging outfits for advertising purposes.
"A motor show is a place where you go with your family, we have to question the stereotypes we are passing on to children and young adults," the minister wrote.
Belgian car federation Febiac, which organises the annual event, said that following the letter it had asked carmakers to ensure appropriate dress at their stands.
"We asked them to be responsible and sensible and we hope that everything will go well," a spokesman for Febiac said.
Suzuki Belgium said it planned make sure its promotional staff at the show complied with the request.
"I can tell you that it won't be shocking and that Ms Milquet will have no reason whatsoever to complain about it," a company spokesman said.
The organisers of the January 11-20 show are expecting to attract some 350,000 visitors. (Reporting by Robert-Jan Bartunek, editing by Paul Casciato)
Copyright 2013 mojeNovosti.com
web developer: BTGcms