A warranty period is the time during which a manufacturer or seller agrees to repair or replace a product that is defective or does not meet the specified standards. A warranty period can be expressed in terms of duration (e.g., one year) or usage (e.g., 10,000 miles). A warranty period is a form of consumer protection that obliges the manufacturer or seller to bear the costs of repairing or changing any part of the product that is not functioning properly1.