Product Liability: How to Sue for a Defective Product
Every year, millions of Americans are injured by products that were improperly designed, manufactured, or labeled. From faulty car parts to dangerous medications to defective power tools, product liability law exists to hold companies accountable when their products cause harm. Unlike many other personal injury claims, product liability often does not require you to prove the company was careless — just that the product was defective and caused your injury.
The Three Types of Product Defects
Design Defect
The product was designed in a way that made it inherently dangerous, even when manufactured correctly. Example: a SUV model with a high center of gravity prone to rollover accidents.
Manufacturing Defect
The design was safe but something went wrong during production. Example: a batch of children's toys contaminated with lead paint at the factory.
Failure to Warn
The product lacked adequate instructions or warnings about known risks. Example: a medication that did not disclose dangerous drug interactions.
Legal Theories: Strict Liability vs. Negligence
Product liability cases can be brought under two primary legal theories:
- Strict liability: You do not need to prove the manufacturer was careless — only that the product was defective and caused your injury. Most states apply strict liability to product liability cases, making it the most powerful tool for injured consumers.
- Negligence: You must show the company failed to exercise reasonable care in designing, manufacturing, or warning about the product. This is a higher bar but sometimes the only option depending on your state's law.
- Breach of warranty: If the product failed to meet its expressed or implied promises, you may have a breach of warranty claim. Express warranties are written guarantees; implied warranties are unwritten assumptions (like that a ladder will hold a person's weight).
Strict liability was designed to shift the cost of defective products away from innocent consumers and onto companies that profit from those products — even when the company was careful.
Who Can Be Sued
One of the strengths of product liability law is that it extends liability throughout the entire supply chain:
- Manufacturer: The company that designed and built the product. This is the most common defendant and often the most responsible party.
- Component parts manufacturer: A company that made a defective part used in the final product (e.g., a defective brake component used in a vehicle).
- Assembler/installer: A company that assembled the product or installed it improperly.
- Retailer or distributor: Even stores that sell defective products can be liable in many states, making it easier to sue when the original manufacturer is overseas or bankrupt.
What You Must Prove
In a product liability case, you generally must prove four elements:
- The product was defective (design, manufacturing, or warning defect)
- The defect existed when it left the manufacturer's control
- You were using the product as intended (or in a reasonably foreseeable way)
- The defect caused your injury and resulting damages
Class Actions and Mass Torts
When a defective product injures many people in similar ways — think pharmaceutical drugs, automotive recalls, or contaminated food — individual lawsuits are often consolidated into class actions or mass tort litigation. These allow many plaintiffs to share resources, discovery, and legal arguments. Mass torts have led to some of the largest settlements in legal history, including billions of dollars from pharmaceutical companies for dangerous drug side effects. If you receive a notice about a class action involving a product you have used, pay attention — you may have a right to compensation or a deadline to opt out.
Statute of Limitations
Product liability claims have a statute of limitations — a deadline after which you cannot sue. In most states, this is 2 to 3 years from the date of injury. Some states use a "discovery rule," meaning the clock starts when you discovered or should have discovered that the product caused your injury — which matters for injuries from medications or chemicals that take years to manifest. Additionally, some states have a "statute of repose" that bars claims after a certain number of years from manufacture, regardless of when injury occurred.
Damages You Can Recover
- Medical expenses: Past and future medical bills, surgery, therapy, and medication costs
- Lost wages: Income lost while recovering, and reduced earning capacity if disabled
- Pain and suffering: Physical pain and emotional distress caused by the injury
- Property damage: Cost to repair or replace any property damaged by the defective product
- Punitive damages: In cases of egregious corporate misconduct, courts may award additional damages to punish the company and deter similar behavior