If an item fails to perform or otherwise gives customers trouble while it is under warranty, and they have it repaired by someone authorized by the manufacturer to make repairs, the manufacturer must extend the original warranty for the time the item was in the repair shop. This rule applies in most states. In addition, customers can call the manufacturer and speak to the department that handles warranties. If the product was trouble-free during the warranty period, the manufacturer may offer to repair for a problem for free if the problem arose after the warranty expired. This may happen if the problem is a common one. Many manufacturers have fix-it lists—items with defects that do not cause a safety hazard and do not require a recall. Sometimes the manufacturer will repair these types of defects for free. Customers will not know of this remedy, though, unless they call and ask.