Simple past tense and past participle of warranty.(verb)
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Use "warrantied" in a sentence
"Still, it's an ambitious goal and given that the rovers are 4 years and 9 months into a mission that was originally "warrantied" for 3 months, Opportunity will have to pick up the pace if it's going to get to this crater in its lifetime."
"The 24-kWh battery pack is warrantied for eight years or 100,000 miles."
"The fact that parts are no longer available for a warrantied product doesn't mean the company is off the hook."