Basically, there are five main types of tire warranties, where each one covers its own cases. The first one is the treadwear warranty (the alternative name is a mileage warranty). It gives a protected usage for a given number of months/years or miles covered. The consumer will get compensation only in case all four tires have worn down to a depth of 2/32 inches before the guaranteed period of time or mileage expired. The second type is called uniformity warranty and it is provided by the manufacturer solely to cover the cases when the tires cause ride disturbance or excessive vibration. The third warranty type is known as a limited hazard warranty that is given by the manufacturer during the first year to cover tire damage occurred due to road hazards (e.g. nail punctures or potholes). The fourth one is known as materials warranty (aka workmanship warranty) as it covers defects that might appear during the manufacturing stage. The trial period warranty (usually 30-45 days) is the last one and it is given by the manufacturers to those potential customers who want to try out the tires before purchasing them.