Under US law, all consumer products have to be accompanied by a warranty, responsiblity of the manufacturer to replace any defective part(s) of the product. The replacement can be done if the product is within the specified warranty period. Normally, the warranty period ranges between one and three years. Only defective spare parts will be replaced. There have been cases of the entire product being replaced when found defective. Small consumer products come with one warranty. While there are multiple warranties offers for bigger products like automobiles. The warranty issued to automobiles is called auto warranty. 

There are two categories of auto warranty. They are used car warranty, issued to used cars and pre-owned cars. The used car warranty is also known as aftermarket auto warranty. The second category is the new car warranty, issued to brand new cars. While new car warranties are affordable, the used car warranty is expensive considering the risks involved in maintaining an older car. While purchase an auto warranty, either new car warranty or used car warranty, review at five different offers from various service providers. If you are not aware of the rules governing auto warranty, it is advisable hire the services of an auto consultant.