“Defective product lawyer” covers two different situations that California treats very differently. If a product injured you, that is a personal injury claim, usually brought under strict liability, and the lawyer’s job is proving a defect and causation. If a product you bought simply failed, broke, or was not what was promised, and nobody was hurt, that is a warranty or consumer protection matter, with its own statutes and remedies such as repair, replacement, refund, or restitution. Which path applies decides which statutes govern, what evidence matters, what can be recovered, and which kind of lawyer you need.
Almost every page you will find for this search assumes you were injured. Many people searching it were not. This article sorts the two situations apart, explains who can be held responsible in each, and points you to the right resource. For the full injury framework, including the three defect theories and the two tests California applies to design defects, see our California defective product lawyer page. To talk through a specific product, call our San Mateo office at 650-250-0705. The consultation is free.
Key Takeaways
- Injury from a product and disappointment with a product are different legal problems with different statutes.
- An injury claim focuses on whether the product was defective and whether the defect caused harm. It does not require proving the company was careless.
- A no-injury claim runs on warranty and consumer protection law, where the remedies are things like repair, replacement, refund, or restitution rather than damages for harm.
- Both paths can reach more than the manufacturer, though the parties and reasoning differ.
- Vaksman Khalfin handles the injury side. Warranty-only and consumer-protection disputes are a separate area of practice, and this article is written so you can tell which one you have.
Start Here: Was Anyone Hurt?
| A product caused injury | A product failed, but nobody was hurt | |
| What kind of claim | Personal injury, usually strict product liability, and sometimes negligence | Breach of warranty and consumer protection |
| Core question | Was the product defective, and did the defect cause the harm? | Did the product conform to what was promised or to ordinary expectations of merchantability? |
| Typical remedies | Medical expenses, lost income and earning capacity, pain and suffering, property damage | Repair, replacement, refund or restitution, and in some cases statutory penalties |
| Key evidence | The product itself, medical records, engineering and testing analysis | The purchase contract, written warranty, repair history and invoices, correspondence with the seller |
| Who typically handles it | A personal injury firm with product experience | A consumer or warranty practice |
Some situations are both. A vehicle component that fails and causes a collision produces an injury claim and may also implicate warranty obligations. A product that damages property without hurting anyone can involve both property damage and warranty theories. Where the facts straddle the line, the injury claim usually drives the analysis because the stakes and the deadlines are different.
If a Product Injured You
California recognizes three defect theories: a manufacturing defect, where the item differs from its intended design; a design defect, where the design itself is unsafe; and a failure to warn, where warnings or instructions were inadequate for a known or knowable risk. Design defect can be established two ways, and under the risk-benefit test the burden shifts to the defendant once the injured person proves the design was a substantial factor in causing harm. The products liability series in the Judicial Council’s California Civil Jury Instructions begins at CACI No. 1200.
The practical point that matters more than any of the doctrine: keep the product. Do not return it, repair it, discard it, or let anyone collect it for testing before you have spoken with a lawyer. Once the item is gone, the manufacturing defect theory usually goes with it.
Our defective products page covers the theories and the defenses in full, and our companion article on what a product liability lawyer does covers the work itself, including evidence custody, discovery, and experts.
If a Product Simply Failed
Where nobody was injured, the claim is usually about the bargain rather than about harm. California provides several overlapping routes, and which applies depends on what was promised, what kind of product it is, and what the seller has done since.
- Express warranty. The written warranty that came with the product, and what it actually promises about repair or replacement.
- Implied warranty of merchantability. A background promise that goods are fit for their ordinary purpose, which applies without being written down.
- Implied warranty of fitness for a particular purpose. Where the seller knew the specific use you needed the product for and you relied on their judgment.
- The Song-Beverly Consumer Warranty Act. California’s consumer warranty statute. Among other things, it addresses a manufacturer’s obligation to repurchase or replace a consumer good after a reasonable number of repair opportunities, and it provides for reimbursement or restitution and, where a violation is willful, a civil penalty. The jury instructions for this Act begin at CACI No. 3200 and carry references to Civil Code sections 1793.2 and 1794.
- The Consumers Legal Remedies Act. California’s statute addressing unfair or deceptive practices in consumer transactions, with instructions beginning at CACI No. 4700 and references to Civil Code sections 1770, 1782, and 1780. It has its own notice requirement before damages may be sought, which is a reason not to delay.
Warranty and consumer claims run on their own limitations rules, which are different from the deadline for an injury claim. If you are in this category, the practical steps are to stop throwing things away, keep every repair invoice and every email or chat transcript with the seller, put your complaint in writing so there is a record, and get advice before accepting a settlement that waives more than you intend.
Vaksman Khalfin’s product work is on the injury side. If your situation is warranty-only, you will be better served by a consumer or warranty practice, and it is worth saying so plainly rather than having you spend a consultation finding out.
Who Is Liable for a Defective Product?
In an injury claim, California’s strict liability doctrine reaches the parties who put the product into the stream of commerce, not only the company whose name is on the box. Depending on the facts that can include the manufacturer of the finished product, the manufacturer of a component part subject to the component parts rule, distributors and wholesalers, the retailer who sold it, and in some circumstances a party that leased or rented the equipment.
This matters most when the manufacturer is overseas, dissolved, or has no assets worth pursuing, because a claim may still be viable against a distributor or retailer within the state. In a warranty claim the analysis is different and turns more on who made the promise and who sold the product, which is one reason the two paths are worth separating early.
What Neither Path Requires
- A recall. A recall can be useful evidence and is worth documenting, but products are defective whether or not one has issued, and a recall does not by itself establish that a particular product caused a particular injury.
- Proof the company was careless. In a strict liability injury claim the focus is the product, not the company’s diligence. A manufacturer’s internal processes can be entirely reasonable and a defective unit can still reach a consumer.
- Being the original purchaser. In an injury claim, the person hurt does not have to be the person who bought the item. Warranty claims are more sensitive to who bought it and what was promised to whom.
- A police report or an official finding. Nothing has to be officially confirmed before a claim can be investigated.
Deadlines
| Situation | General rule | Source |
| Injury claims against a private party | Two years from the date of injury | Code Civ. Proc., § 335.1 |
| Claims where a public entity may be responsible | A written claim generally must be presented to the entity before any lawsuit, on a much shorter timeline | California’s Government Claims Act |
| Warranty and consumer protection claims | Governed by their own limitations rules, which differ from the injury deadline | Worth confirming for the specific claim rather than assuming the injury deadline applies |
The practical deadline usually arrives well before the legal one. A product that goes back to the seller in week one takes a theory with it, regardless of how much time remains to file.
Defective Product Claims in San Mateo County
Our office at 15 North Ellsworth Avenue, Suite 105, San Mateo, CA 94401 works with injured people across the Peninsula. Civil cases here are handled by the Superior Court’s Civil Division at the Hall of Justice in Redwood City.
Product injuries on the Peninsula often surface inside another claim rather than on their own: a vehicle component or restraint system in a car or truck collision, or equipment involved in a fall on unsafe property. That is worth raising at a first consultation, because the product angle is the one most often missed and the one with the shortest practical evidence window.
More about the office is on our San Mateo page, and related explanations are collected in our California personal injury guides.
How Vaksman Khalfin Can Help
For injury claims, Vaksman Khalfin, PC can take custody of and preserve the product before it is lost, identify everyone in the chain of distribution who may be responsible, obtain design, testing, and complaint records through discovery, work with engineering and safety experts to establish which defect theory the evidence supports, handle communications with the company and its insurer, and litigate where a fair resolution is not offered.
The firm’s California personal injury practice is led by Alan D. Khalfin, admitted in California. Product matters are handled on a contingency-fee basis: there is no upfront attorney’s fee, and attorney’s fees are owed only if there is a recovery. Case costs, which in product cases frequently include expert and testing fees, are a separate category from attorney’s fees. How case costs are handled, including whether you may be responsible for them, is set out in the written fee agreement that is reviewed with you before anything is signed.
If your situation turns out to be warranty-only, we will tell you that at the consultation rather than after. To talk through a product, call 650-250-0705 or schedule a free consultation. If you still have the item, photograph it before you come, and bring it if you can.
Reviewed by Alan D. Khalfin, Partner and Managing Attorney, Vaksman Khalfin, PC (admitted in California). Last reviewed: 09/22/2026
Frequently Asked Questions
Yes, where a defective product caused injury or damage. California recognizes strict liability claims, which focus on whether the product was defective and whether the defect caused harm rather than on whether the company was careless, and negligence and warranty theories may also apply. Whether a particular situation supports a claim depends on the product, the facts, and what evidence still exists.
That is a warranty and consumer protection question rather than a personal injury one. California provides several overlapping routes, including the express warranty that came with the product, the implied warranty of merchantability, the implied warranty of fitness for a particular purpose, the Song-Beverly Consumer Warranty Act, and the Consumers Legal Remedies Act. The remedies are typically repair, replacement, refund or restitution, and in some cases statutory penalties, rather than damages for physical harm. These claims run on their own limitations rules and one of the statutes has a notice requirement, so it is worth getting advice early.
In an injury claim, strict liability reaches the chain of distribution: the manufacturer of the finished product, the manufacturer of a component part subject to the component parts rule, distributors and wholesalers, the retailer who sold it, and in some circumstances a party that leased or rented the equipment. That matters when the manufacturer is overseas, dissolved, or judgment-proof. In a warranty claim the analysis turns more on who made the promise and who sold the product.
For an injury claim, generally no. The person injured does not have to be the purchaser. Warranty claims are more sensitive to who bought the item and what was promised to whom, which is another reason the two paths are analyzed separately.
If anyone was injured, speak with a lawyer first. Returning, repairing, or handing over the product usually eliminates the manufacturing defect theory and makes the design and warning theories considerably harder. If nobody was injured and you are pursuing a warranty remedy, returning the item may be part of the process, but keep the documentation and photograph the item before it goes.
A recall can be useful evidence and is worth documenting, but it is not required. The absence of a recall does not mean a product was not defective, and the existence of one does not by itself establish that a particular injury was caused by the defect.
By establishing a defect and causation with evidence. A manufacturing defect claim usually requires the product itself, compared against its intended design. A design defect claim requires engineering analysis, and under the risk-benefit test the burden shifts to the defendant once the injured person proves the design was a substantial factor in causing harm. A failure-to-warn claim turns on labeling, manuals, and what the company knew or could have known.
Most injury claims against a private party must be filed within two years of the date of injury under Code of Civil Procedure section 335.1. Where a public entity may be responsible, a written claim generally must be presented before any lawsuit, on a much shorter timeline. Warranty and consumer protection claims follow their own limitations rules, which differ from the injury deadline.
The firm's product work is on the injury side. If your situation is a warranty or consumer protection matter with no injury, a consumer or warranty practice is a better fit, and we will say so at the consultation rather than take up your time first.
