Cal. Civ. Code §§ 1791.1, 1792; Cal. Com. Code § 2314
The implied warranty of merchantability — two statutes, and a split over hidden defects
A claim in California superior courts · Last verified August 26, 2026
Every sale of goods carries an unwritten promise that the goods are fit for their ordinary purpose. Nobody signs it. It attaches by operation of law, and disclaiming it is harder than sellers think.
California has two versions of it, and choosing the wrong one costs you.
Song-Beverly's implied warranty, at Civil Code § 1791.1, covers consumer goods, reaches the manufacturer without privity, and pays a prevailing buyer's attorney's fees.
The Commercial Code's, at § 2314, covers any sale by a merchant, generally requires privity, requires notice of breach, and pays no fees at all.
And running through the Song-Beverly version is a live split over whether a defect that was present at sale but did not surface until later is covered.
What the claim is
You bought goods. They were not fit for the ordinary purpose goods of that kind are used for. The seller did not have to promise anything or know anything — the warranty is implied.
Merchantable means, at a minimum, that the goods pass without objection in the trade, are fit for ordinary purposes, are adequately contained and labelled, and conform to the promises on the label.
This is a lower bar than a defect claim and a different one. Strict products liability asks whether the product was dangerous. Merchantability asks whether it worked.
Where the right comes from — and which statute you are under
Song-Beverly, Civil Code §§ 1791.1 and 1792. Applies to consumer goods sold at retail in California. Section 1792 attaches the implied warranty of merchantability to every retail sale unless validly disclaimed.
Commercial Code § 2314. Applies to any sale of goods by a merchant with respect to goods of that kind. Broader in what it covers, weaker in what it gives you.
When both apply, plead both — they are not alternatives so much as overlapping layers, and their procedural requirements differ enough that one may survive what kills the other.
What a plaintiff has to prove
- The defendant sold goods — consumer goods, for the Song-Beverly claim; goods sold by a merchant dealing in that kind, for the Commercial Code claim.
- The goods were not merchantable at the time of sale.
- The plaintiff was harmed.
- The unmerchantable condition was a substantial factor in causing the harm.
The CACI 3200 series covers the Song-Beverly claims.
Two differences do most of the practical work:
Privity. A Commercial Code claim generally requires vertical privity — you must have bought from the defendant — which usually means no claim against the manufacturer you never dealt with. Song-Beverly dispenses with that for the manufacturer's implied warranty on consumer goods, which is the single best reason to be under Song-Beverly if you can be.
Notice. The Commercial Code requires the buyer to notify the seller of the breach within a reasonable time after discovering it, or be barred from any remedy. Song-Beverly imposes no equivalent notice requirement.
How long you have to file — and the duration trap
Four years on the Commercial Code claim, under Com. Code § 2725, running from tender of delivery regardless of the buyer's knowledge, unless the warranty explicitly extends to future performance.
Four years on the Song-Beverly claim as well, borrowed from the same provision.
But Song-Beverly has a second clock that is not a limitations period at all, and confusing the two is the standard error.
Civil Code § 1791.1(c) sets the duration of the implied warranty: coextensive with any express warranty, but in no event less than 60 days nor more than one year following the sale.
So: how long the warranty lasts, and how long you have to sue, are different questions with different answers. The warranty may last one year while the claim on it remains suable for four.
The split — do not let anyone resolve it for you
Must a defect manifest within the § 1791.1(c) duration period, or is it enough that it existed at sale?
One line of authority says existence is enough. In Mexia v. Rinker Boat Co. (2009) 174 Cal.App.4th 1297, the Fourth District held a latent defect present at delivery breaches the implied warranty even though it surfaced after the durational window, reasoning that a product is rendered unmerchantable by the unseen defect itself rather than by its later discovery. The Ninth Circuit followed Mexia in Daniel v. Ford Motor Co. (9th Cir. 2015) 806 F.3d 1217.
Defendants read the statute the other way, relying on Atkinson v. Elk Corp. of Texas (2006) 142 Cal.App.4th 212 for the proposition that the defect must appear within the period.
The California Supreme Court has not resolved it. A trial court may follow either published decision, so the answer depends on where you are. Plead the latent defect as having existed at delivery, and expect the fight.
What has to happen before you file
For a Commercial Code claim: notice of breach, within a reasonable time after the buyer discovers or should have discovered it. Character: a substantive condition on the remedy — the Commercial Code bars the buyer from any remedy without it, so this is not a curable procedural step.
For a Song-Beverly claim: nothing. No notice, no demand, no agency.
That asymmetry matters more than it looks. A buyer who complained to nobody has lost the Commercial Code claim and kept the Song-Beverly one.
Who can be sued — and who cannot
Under Song-Beverly: the manufacturer, the distributor, and the retail seller of consumer goods. No vertical privity required against the manufacturer.
Under the Commercial Code: the merchant seller — someone who deals in goods of that kind. A casual seller gives no implied warranty of merchantability at all. And privity generally applies, which confines the claim to the party you bought from.
Disclaimers are restricted, and much more so under Song-Beverly. The Commercial Code permits a disclaimer that mentions merchantability and is conspicuous, or that uses "as is" or "with all faults." Song-Beverly does not allow a manufacturer's implied warranty to be disclaimed where an express warranty is given, and its "as is" route is narrow and conditioned.
Common defenses
The goods were merchantable — fit for ordinary purposes, which is a lower bar than fitness for the buyer's particular purpose.
No privity, on the Commercial Code claim.
No notice of breach, on the Commercial Code claim.
A valid disclaimer, more available under the Commercial Code than under Song-Beverly.
The durational limit under § 1791.1(c) — the Atkinson reading of the split.
Misuse, alteration, or ordinary wear. The warranty is not a promise the goods will last forever.
The limitations period, running from tender rather than discovery.
What the claim pays
Under Song-Beverly: damages under Civil Code § 1794, and — the reason to be here — attorney's fees and costs to a prevailing buyer under § 1794(d), a one-way award. Where the failure was willful, the civil penalty of up to two times actual damages under § 1794(c) is available on the implied warranty claim as well as the express one.
Under the Commercial Code: the ordinary measure — the difference between the value of the goods as accepted and their value as warranted — plus incidental and consequential damages. No fee award.
Personal injury damages are recoverable on a breach of the implied warranty where the unmerchantable condition caused injury, which is one route around the economic loss rule that blocks a strict liability claim for the product itself.
Jury trial: yes.
What people get wrong
"The warranty expired, so my claim is dead." Two different clocks. The warranty's duration under § 1791.1(c) is not the limitations period, which is four years.
"The defect showed up after a year, so I lose." That is the contested question, not the settled answer. Mexia says a defect present at sale is covered whenever it surfaces.
"I never bought from the manufacturer, so I can't sue them." Under Song-Beverly you often can — no vertical privity required. Under the Commercial Code, usually not.
"'As is' ends it." Not on a manufacturer's implied warranty under Song-Beverly where an express warranty was given.
"I have to prove the product was dangerous." No. Merchantability asks whether it worked, not whether it was unsafe.
"I told nobody, but I still have my claim." Under the Commercial Code, telling nobody bars every remedy.
"Song-Beverly is a car statute." It is a consumer goods statute. Vehicles dominate the filings, not the text.
Where it came from
The implied warranty is old, and it began as a merchant's obligation rather than a consumer's right. California's Commercial Code inherited it in the mid-twentieth century with privity and notice requirements built in — rules that made sense between merchants and made no sense at all for a consumer buying a mass-produced good from a retailer who did not make it.
Song-Beverly, in 1970, fixed that for consumer goods. It stripped out the privity requirement for the manufacturer's implied warranty, dropped the notice condition, restricted disclaimers, and added one-way fees. What survives is a two-tier system: the older, merchant-oriented rules still govern sales the consumer statute does not reach.
The durational provision is where the drafting has aged worst. Section 1791.1(c) was written to stop an implied warranty running forever, not to defeat claims about defects that were built in from the start — which is why the courts have divided over it and why the question is still open.
Common questions
What is the difference between the two implied warranty statutes?
Song-Beverly covers consumer goods, reaches the manufacturer without privity, requires no notice, and pays a winning buyer's attorney's fees. The Commercial Code covers any merchant sale but generally requires privity and notice of breach, and pays no fees.
How long does the implied warranty last?
Under Song-Beverly, as long as any express warranty, but never less than 60 days or more than one year from the sale. That is separate from the four years you have to file suit.
My car's defect appeared after the warranty ran out. Do I have a claim?
Possibly. Courts are split. Mexia holds that a defect present at sale breaches the warranty even if it surfaced later; other authority reads the statute to require the defect to appear within the period. The Supreme Court has not resolved it.
Can I sue the manufacturer if I bought from a dealer?
Under Song-Beverly, generally yes — it does not require vertical privity for the manufacturer's implied warranty. Under the Commercial Code, generally no.
Does "as is" end my claim?
Not always. Song-Beverly sharply restricts disclaimers of a manufacturer's implied warranty where an express warranty was given.
Will I get my attorney's fees?
On a Song-Beverly claim, yes, if you prevail — the manufacturer pays and recovers nothing if it wins. On a Commercial Code claim, no.