extended warranty
noun[CorU]
ukuspluralextended warranties(alsoextended guarantee)COMMERCE,INSURANCE
atypeofguarantee(= apromisetorepairorreplaceaproduct)thatincreasestheperiodoftimeduring which theguaranteecan be used:
Only about 20% of theproductscoveredby anextendedwarrantyareeverbroughtin forrepair, theagencysays.