I personally would have them check it out at the dealership. They very well could have hidden a problem with the cushion of the seat. The mark in the same area can also be addressed at the same time then. Dealerships know quality control is lacking. On some things you can overlook it others you can't. Just depends on your tolerance of acceptability.I just picked up the bronco and noticed this. Is it covered under warranty? Looks kind of bad.