Utah Strict Liability Definition of "manufacturing defect." is a legal doctrine that holds a manufacturer liable for any product defect caused by a manufacturing error, regardless of fault. This means that even if the manufacturer was not negligent and did everything they could to make a safe product, they can still be held liable if the product fails to perform as expected. There are two types of Utah Strict Liability Definition of "manufacturing defect.": Design Defects and Manufacturing Defects. Design Defects occur when a product contains a design flaw that causes it to be unsafe, even when manufactured exactly as designed. Manufacturing Defects occur when a product is safe when designed, but is made incorrectly or with substandard materials, leading to an unsafe product. In both cases, the manufacturer is held strictly liable for any injury or damage caused by the product.