Also known as:defective and unreasonably dangerous · unreasonably dangerous defective condition · 402A · strict products liability defect
Written by attorneys — see sources below.
A product state that makes the item more hazardous than an ordinary consumer would expect when using it in a foreseeable manner. The condition triggers strict liability for a commercial seller when it causes physical harm to the ultimate user or consumer and the product reaches that person without substantial change.
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How its tested
Common Examples
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Smartwatch Battery Overheats
Betty purchased a new smartwatch from an online marketplace. The device contained a manufacturing inconsistency in battery sealing that existed when it left the factory. During ordinary daily wear the battery overheated and caused second-degree burns. The inconsistency rendered the watch defective and unreasonably dangerous at the time of sale.
Homestead Allowance Dispute
A surviving spouse received the family home under a constitutional homestead right. The probate court charged the value of that right against the statutory homestead allowance. No product or manufacturing condition was at issue in the allocation.
Carla received a prefilled injection device from a pharmacy. The device delivered excessive force during instructed use and caused internal bleeding. The malfunction showed the device was in a defective condition unreasonably dangerous when sold by the manufacturer.
Brown v. Superior Court44 Cal.3d 1049, 751 P.2d 470, 245 Cal.Rptr. 412 (1988)
Plaintiffs in these consolidated actions were exposed to the drug diethylstilbestrol, known as DES, while in utero after their mothers ingested the drug during pregnancy to prevent miscarriage. Because multiple manufacturers produced DES according to the same formula, the plaintiffs could not identify the specific manufacturer responsible for the particular DES taken by their mothers.
The plaintiffs filed suit in the San Francisco Superior Court against numerous drug manufacturers, with typical complaints naming 170 or more defendants. These cases were designated as complex litigation, with pretrial rulings issued in a lead case numbered 830-109 that would apply to at least 69 related actions. The complaints alleged that the defendants manufactured DES from the same formula, that the drug was unsafe for use in preventing miscarriage, and that the manufacturers knew it contained a cancer-causing substance yet failed to provide warnings to users or their physicians.
In addition to claims for negligence, the plaintiffs asserted causes of action for strict liability based on design defects in DES, as well as breach of express and implied warranty and fraud. Where they could not identify the specific manufacturer, the plaintiffs sought to hold liable those defendants who had manufactured a substantial share of the DES market. The trial court sustained demurrers to the strict liability design defect claims. It ruled that breach of warranty and fraud claims could not be pursued under the market share theory, while also determining that any liability would be several rather than joint.
The Court of Appeal reviewed the trial court's pretrial rulings through writ proceedings and affirmed those determinations. The Supreme Court of California granted review to consider the questions presented by the litigation.
Branham drove an SUV with a high center of gravity and narrow track width. The vehicle rolled over during an ordinary avoidance maneuver. Expert evidence established that the design made the SUV defective and unreasonably dangerous when it left the manufacturer.
Branham v. Ford Motor Co.390 S.C. 203, 701 S.E.2d 5 (2010)
In 1986 Ford Motor Company manufactured a 1987 Ford Bronco II 4x2 that Cheryl Hale purchased used in June 1999 for a nominal sum after it had accumulated 137,500 miles.
On June 17, 2001, Hale was driving the Bronco II along Cromwell Road in Colleton County with several children as passengers, including her daughter in the front seat and Jesse Branham, III in the backseat; no one wore a seatbelt. Hale took her eyes off the road to quiet the excited children, causing the rear right wheel to leave the roadway, then overcorrected to the left, producing a shake that led the vehicle to roll over and eject Branham.
Branham filed suit against Ford and Hale in Hampton County alleging a defective rear occupant restraint system and a handling and stability design defect related to rollover propensity, each pursued under negligence and strict liability theories. At trial Branham introduced internal Ford documents dated 1981 and 1982 concerning stability index calculations, Twin I-Beam suspension selection despite engineer objections, J-turn testing results, and expert testimony from Dr. Melvin Richardson and former Ford vice president Thomas Feaheny describing the MacPherson strut as a feasible alternative design.
The jury returned a general verdict against both defendants and awarded Branham $16,000,000 in actual damages and $15,000,000 in punitive damages. Ford appealed directly to the Supreme Court of South Carolina under Rule 204(b), SCACR.
Daly was injured when the seatbelt system in his car failed during a crash. The system had been altered by the user after purchase. The post-sale modification prevented a finding that the product remained in a defective condition unreasonably dangerous as sold.
Daly v. General Motors Corp.20 Cal.3d 725, 575 P.2d 1162, 144 Cal.Rptr. 380
In the early hours of October 31, 1970, Kirk Daly, a 36-year-old attorney, was driving his Opel automobile southbound on the Harbor Freeway in Los Angeles at a speed of 50-70 miles per hour. The vehicle collided with and damaged 50 feet of metal divider fence. After the initial impact between the left side of the vehicle and the fence, the Opel spun counterclockwise. The driver's door was thrown open, and Daly was forcibly ejected from the car, sustaining fatal head injuries. It was undisputed that had the deceased remained in the Opel his injuries would in all probability have been relatively minor. There were no eyewitnesses to the accident.
Plaintiffs, who are decedent's widow and three surviving minor children, sued General Motors Corporation, Boulevard Buick, Underwriter's Auto Leasing, and Alco Leasing Company. These defendants were the successive links in the Opel's manufacturing and distribution chain. The sole theory of plaintiffs' complaint was strict liability for damages allegedly caused by a defective product. The product was an improperly designed door latch claimed to have been activated by the impact. It was further asserted that but for the faulty latch decedent would have been restrained in the vehicle and although perhaps injured would not have been killed.
At trial the jury heard conflicting expert versions as to the functioning of the latch mechanism during the accident. Plaintiffs' principal witness testified that the Opel's door was caused to open when the latch button on the exterior handle of the driver's door was forcibly depressed by some protruding portion of the divider fence. It was his opinion that the exposed push button constituted a design defect. Plaintiffs also introduced evidence that other vehicular door latch designs used in production models of the same and prior years afforded substantially greater protection. Defendants' experts countered with their opinions that the force of the impact was sufficiently strong that it would have caused the door to open, resulting in Daly's death even if the Opel had been equipped with door latches of the alternative designs suggested by plaintiffs.
Over plaintiffs' objections, defendants were permitted to introduce evidence indicating that the Opel was equipped with a seat belt-shoulder harness system and a door lock, either of which if used would have prevented Daly's ejection from the vehicle. Daly used neither the harness system nor the lock. The 1970 Opel owner's manual contained warnings that seat belts should be worn and doors locked when the car was in motion for accident security. Daly was intoxicated at the time of collision. The evidence was admitted for the limited purpose of determining whether decedent had used the vehicle's safety equipment. After relatively brief deliberations the jury returned a verdict favoring all defendants.
Plaintiffs appealed from the ensuing adverse judgment to the Supreme Court of California. They contended that the trial court erred in instructing the jury that plaintiffs' recovery could be barred or diminished by decedent's contributory negligence and in refusing to instruct on the theory of crashworthiness.
Barker operated a loader whose design lacked an adequate safety device. The missing guard allowed the machine to tip during normal use and caused injury. The absence of the guard rendered the loader defective and unreasonably dangerous at the time of sale.
Barker v. Lull Engineering Co.20 Cal.3d 413, 432 (1978)
In August 1970, plaintiff Ray Barker was injured at a construction site at the University of California at Santa Cruz while operating a high-lift loader manufactured by defendant Lull Engineering Co. and leased to plaintiff's employer by defendant George M. Philpott Co., Inc.
The loader was 23 feet long, 8 feet wide and weighed 17,050 pounds. It was designed to lift loads of up to 5,000 pounds to a maximum height of 32 feet.
On the day of the accident the regular operator of the loader did not report for work. Plaintiff, who had received only limited instruction on the operation of the loader and had operated it on only a few occasions, was assigned to run the loader.
The accident occurred while plaintiff was attempting to lift a load of lumber to a height of approximately 18 to 20 feet. The terrain on which the loader rested sloped sharply in several directions. When it appeared to several coworkers that the load was beginning to tip, the workers shouted to plaintiff to jump from the loader. Plaintiff leaped from the loader but while scrambling away he was struck by a piece of falling lumber and suffered serious injury.
Plaintiff contended that the accident was attributable to one or more design defects of the loader. These included the absence of outriggers, the lack of a roll bar or seat belts, the design of the leveling mechanism, and the absence of a park position on the transmission. Defendants denied that the loader was defective in any respect. They claimed that the accident resulted either from plaintiff's lack of skill or from his misuse of the product.
The jury returned a verdict in favor of defendants. The Court of Appeal affirmed the judgment. The Supreme Court granted plaintiff's petition for hearing to consider the propriety of the trial court's instructions on the law of products liability.
The trial court instructed the jury on strict liability in tort. The trial court also instructed the jury that if the plaintiff voluntarily and unreasonably proceeded to encounter a known danger, then the plaintiff may not recover.
Does strict products liability require proof that the seller was negligent?
No. The rule imposes liability on a commercial seller that places a product into the stream of commerce in a defective condition unreasonably dangerous, even if the seller exercised all possible care in preparation and sale.
Supporting sources
Must the plaintiff show privity of contract with the seller?
No. The rule applies although the user or consumer has not bought the product from or entered into any contractual relation with the seller.
Supporting sources
What happens if the product reaches the user after an intermediary sale?
The manufacturer may still be liable if the product reaches the user without substantial change in the condition in which it was sold. An intermediary such as a pharmacy or retailer does not break the chain when the product remains unaltered.
Supporting sources
Does a downstream duty to inspect relieve the manufacturer?
No. The manufacturer's liability for placing a defective and unreasonably dangerous product into commerce is independent of any inspection duty owed by a downstream party such as a hospital or employer.
Supporting sources
When does post-sale conduct by the user defeat liability?
Liability is defeated when the user's actions constitute a substantial change that creates the dangerous condition after the product left the seller. Minor or foreseeable misuse does not break the chain if the defect existed at sale.
…for a rehearing was denied May 4, 1988. Footnotes : Section 402A provides: “(1) One who sells any product in a defective condition unreasonably dangerous to the user or consumer or to his property is subject to liability for physical harm thereby caused to the ultimate user or consumer, or to his property, if (a) the seller is engaged in the…
TortsProducts liability based on the design, manufacture, and distribution of products and defenses to such claims · Products liability based on the design, manufacture, and distribution of products and defenses to such claimsNEXTGENFoundational