The Use and Care Manuals that come with your appliance(s) are often overlooked and perhaps even trashed with the packaging materials. These manuals contain important information and it will benefit the consumer to read them. Installation recommendations should be followed as it ensures the proper operation of the product and reduces hazard risks. It is extremely important for you to register your appliance by sending in the completed Registration Card by mail or by registering online. If problems should occur with your product, you will be able to repair it under the terms of your warranty. In case of product recalls, the registration information facilitates notification from the manufacturer to the consumer.
The manuals contain, among other things, special operating guidelines, cautionary tips for usage of the appliance, as well as descriptions of special features that the product offers. Many people are not always aware of all the special features that the product has and it can be a welcome bonus to find out the “extras” that your product can provide. Manufacturers recommend settings for maximum energy efficiency and provide other energy related data. This information can save you money. Warranty information, limitations, and coverage period is specified within the manual. Contact information, parts listings(useful when you need to replace a part) and product servicing locations are also noted. A listing of what is included with your appliance as well as any optional accessories which can be purchased to enhance the product, ensures that you get what you paid for (all the parts were contained in the packaging) and gives you additional options if you want them.
You can inadvertently invalidate your warranty and reduce the lifespan of your product by not following certain protocols provided by the manufacturer. Reduce hazards and injuries by adhering to manufacturer guidelines contained in the manual. Manufacturers give suggestions for recommended maintenance and troubleshooting which can keep your appliances running well for many years beyond the warranty.

Has Your Appliance Been Recalled? « Appliancesbyphone's Blog said
[...] strongly encourage consumers to retain (and read) the Use and Care Manual that comes with each appliance and to return the warranty card to the manufacturer as well. [...]