An "extended warranty" is an additional service that you can buy to protect a product or item you purchase. It covers potential repair costs or replacements beyond the original warranty period. Full definition
We also have many extended warranties available for purchase. (edmunds.com)
Watch out for extended warranties offered by some dealers. (moneysmart.gov.au)
For example, it offers extended warranty on purchases, price protection, car rental insurance, roadside assistance, travel accident insurance and a cash advance if you lose your card. (creditcards.com)