Good advice so far, I'd just like to add that on some of the equipment our sales division sells, an extended warranty is available. The people that choose to buy it are *almost* always convinced that the warranty is not just "extended", but also that it's more "all-encompassing". And in most cases it isn't.
The confusion most frequently arises when something happens during the warranty period that isn't a warranty issue. Even if the customer is shown via the warranty documentation that whatever the issue may be is not something that is covered, (such as allowances for downtime, getting a loaner while their equipment is in the shop, damage due to misuse or neglect, etc.), their first response is always, "But I have the extended warranty....."
As mentioned earlier, the "fine print", (in quotes because it's often not "fine print"), needs to be read and understood. It's not unusual at all for a customer to bring in something for service two, three, four years after purchasing it, and the warranty booklet that's packaged with the operators manual is still shrink-wrapped in the factory plastic. How someone can "know" what's covered and what isn't without ever reading the material is a bit of a mystery. Reading the stuff is important, because nothing anyone "tells you" trumps what is clearly spelled out in print. Salesmen say all sorts of things, which is why warranty and operators manuals mention that the printed word takes precedence over what anyone "says".
Most "warranty issues" aren't warranty issues at all. That may sound harsh, but it's the truth. Consumers tend to think that the exclusions in a warranty document are there only for the purpose of allowing the manufacturer to wiggle out of footing the bill for anything that may occur. That isn't the case however. Anyone that has spent some time browsing forums for anything, (be it a tractor, truck, motorcycle, whatever), has undoubtedly seen posts from end-users like this:
"My manual says to use *this grade* of engine oil. What do you guys think I should use?"
or....
"The manual says not to tow over 8000 pounds, but my camper is 10000 pounds, I should be okay there....right?"
In other words, a lot of the exclusions deal with topics such as for the warranty to be honored, the equipment or vehicle needs to be used and maintained in the manner the manufacturer intended. Warranty coverage is a two-way street. There are obligations for both parties to live up to...