Cadillac is calling back its new CT6 luxury car over an issue with the seat belts.

The issue, which affects just 131 vehicles, is a bolt that may be missing from the passenger seat belt webbing. That can result in the seat belt webbing detaching from the anchor plate. If that happens, the seat belt won't restrain its passenger properly.

GM dealers will replace the front passenger seat belt webbing anchor bolt free of charge to all affected consumers.

The recall is supposed to begin by the end of September, 2016.