A motor vehicle has an electric seat adjuster for a seat and an occupant protection system with a belt assigned to the seat. In the buckled condition, the belt restrains an occupant in the event of a vehicle impact. The adjusting range of the seat adjuster changed as a function of the buckling condition of the belt. In preferred arrangements, the adjusting range is limited to a narrow adjusting range if the belt is not buckled and is limited to a wide adjusting range if the belt is buckled.