Welcome to the forum!
Go to the "search" tab on the top line and do a post search for "extended warranties". You will find a few big fans and a lot of us that think it is a big, expensive rip off. The deductibles and the exclusions will bite you! If after doing your research you still want to buy one, shop around. Some have talked the dealer down to half price! (The commission on those is about 50%!)
Bad decisions make great stories!