The airbag in your car is supposed to save your life, not end it. But when a defective airbag inflator ruptures, it can blast metal shrapnel into the cabin at high speed. This is not a hypothetical worst-case scenario. It happened to millions of vehicles worldwide in the largest automotive recall in history, involving Takata inflators. If you or someone you know has been injured by a defective car part, understanding how product liability works is critical to getting compensation.

Product liability law holds manufacturers, parts suppliers, and sometimes dealerships responsible when a product is dangerously defective. For car parts, the key question is not whether the company was careless, but whether the part was unreasonably dangerous when used as intended. This is called strict liability. You do not have to prove that the company made a mistake or knew about the defect. You only have to show three things: the part was defective, the defect caused your injury, and you were using the part in a normal way.

Airbag inflators fail for a few specific reasons. The most common is a chemical propellant that degrades over time, especially in hot and humid climates. The chemical can burn too fast, causing the metal inflator casing to explode. That explosion sends fragments of metal into the car, hitting the driver or passengers. This defect makes the inflator unreasonably dangerous because the intended safety device becomes a weapon. Courts have consistently ruled that such a failure qualifies as a manufacturing defect, a design defect, or both.

Manufacturing defects happen when something goes wrong during the production of one particular part. For example, a welding flaw in a single inflator that causes it to rupture. Design defects exist when the entire product line is flawed from the start. If the chemical formula chosen for the inflator is inherently unstable, every inflator built with that formula is defective. In either case, the manufacturer of the part is liable. That can be the company that made the inflator, like Takata, or the carmaker that installed it, like Honda or Toyota. Under product liability law, both can be sued.

You also need to prove causation. This means showing that the defect, and not a crash or misuse, directly caused your injury. If you were in a minor fender bender where no one should have been hurt, but the inflator exploded and sent a metal shard into your arm, causation is clear. If you were in a high-speed crash and the inflator also failed, the situation is more complicated. Lawyers and experts will look at crash data, the condition of the inflator, and medical records to separate injury from the crash from injury from the exploding inflator.

Your rights do not depend on whether the company issued a recall. If you were injured by a defective part that was never recalled, you can still sue. A recall is a voluntary or government-ordered fix for a known defect, but your legal claim is based on the product being dangerous at the time of injury, not on whether the company told anyone about it. However, if a recall was issued and you ignored it, the company might argue that your failure to get the part replaced contributed to the injury. That is not a total bar to recovery, but it can reduce the amount you receive in states that follow comparative fault rules.

What should you do if you are injured by a defective car part? First, get medical attention immediately. Document every injury with photos and keep all medical records. Second, preserve the car and the broken part. Do not let the insurance company or a repair shop take possession until a lawyer or expert can inspect it. Third, hire an attorney who has handled product liability cases. This area of law is not a do-it-yourself project. A good lawyer will help you identify all liable parties, gather evidence, and deal with deadlines.

There is a time limit to file a lawsuit, called the statute of limitations. It varies by state, often two to three years from the date of injury. If you miss that window, you lose your right to sue forever. Some states have a separate statute for product liability claims, and some start the clock when you discovered or should have discovered the injury. Do not wait. Call a lawyer as soon as you are stable.

Product liability law exists to make sure the companies that build the products we trust pay for the harm they cause. When a car part like an airbag inflator turns into a bomb, you do not have to accept a settlement from the insurance company that covers only your medical bills. You are entitled to compensation for pain, lost wages, future medical care, and, in egregious cases, punitive damages designed to punish the company. The first step is knowing that the law is on your side. The second step is acting.