Unlike some states, Texas follows the doctrine of "strict liability. In Texas, a product may be considered defective if it has an unsafe design, diverges from its intended design or lacks proper instructions and warnings.To establish a products liability claim, you need to demonstrate the presence of a defect in the product. What does "defective" mean in a products-related case? Defective does not always mean a product doesn't work the way it was intended. A faulty product may cause burns, amputation, or other serious damage. The fault for a defective product usually lies with the manufacturer. A defective product in Texas is one that is unreasonably dangerous due to a flaw in its design, manufacturing, or marketing. What qualifies as a "defective product? Texas law and federal law allow consumers to hold manufacturers, distributors, and sellers responsible if their unsafe products cause injury or death.