The most common mistake of people when it comes to a car warranty is that they don’t check what is covered in the policy, or the requirements needed to meet that policy. One example is that most car warranty policies require your car to be serviced regularly, but some car owners fail to do this. This will make your car warranty invalid. Also don’t accept warranties without thoroughly checking what’s in there. Some car owners assume that all car warranties are the same, when in fact they’re not. The policies can vary depending on the car owner’s requirements.