What are the three types of product defects under Texas law?

Manufacturing defects: the flawed unit

A manufacturing defect means the product that hurt you deviated from its own specifications or planned output in a way that made it unreasonably dangerous, the bottle with the contaminant, the weld that missed, the tire that left the plant with a flaw its siblings do not share. The theory's logic is comparison: your unit against the design documents and against exemplar units, which makes the physical product itself the whole case and its preservation the first task, photographed, secured, and never surrendered to a repair shop, an insurer's salvage chain, or the manufacturer's recall truck. These are, in one sense, the cleanest product cases, no one defends the flaw itself, and the fights move to causation and to whether the defect existed when the product left the maker's hands.

Design defects: the flawed line

A design defect claim says the product performed exactly as designed, and the design itself was unreasonably dangerous. Texas makes the plaintiff carry a specific statutory burden here: proof of a safer alternative design that, in reasonable probability, would have prevented or significantly reduced the injury without substantially impairing the product's utility, and that was economically and technologically feasible when the product left the manufacturer's control, using scientific knowledge that existed or was reasonably achievable. That language decides how these cases are built, an engineer does not merely criticize the product, the engineer builds the alternative, the guard that could have been there, the interlock the competitor already used, the geometry that costs forty cents more, and shows the jury the injury that design would have prevented. Design cases put the entire product line on trial, which is why manufacturers defend them hardest and why they change products for everyone.

Marketing defects: the flawed warning

The third theory attacks the words: a product can be flawlessly made and reasonably designed and still be defective because it failed to warn of dangers the maker knew or should have known, or failed to instruct on safe use, in a way an ordinary user would notice and understand. The proof lives in the company's files, what the complaint databases, test reports, and foreign labels show it knew, and in the gap between that knowledge and the label on your unit. Warning cases turn on foreseeability and adequacy, tiny print, buried cautions, and warnings that never mention the injury that actually happens are the recurring villains.

Why the taxonomy matters to your case

The three theories demand different experts, different discovery, and different answers to different defenses, and serious cases often plead more than one, the design that was dangerous and the warning that hid it. Sorting your facts into the right theories is the first analytical act of a product case, Silver Key Law does it in the first conversation, and that conversation is free.

Injured in Arizona? Some rules on this page are Texas-specific. Arizona differs on points that change outcomes, including pure comparative fault and government-claim deadlines. See our Arizona answers or call (888) 508-6967.

Related: Defective Product Cases · Who Can Be Sued in the Chain · Submit Your Case · All Common Questions

This page is general information about Texas law, not legal advice about your specific situation. Deadlines and outcomes depend on facts; talk to a lawyer about yours.