Implied vs. Express Warranties Under California Law

California recognizes two distinct types of warranties on consumer vehicles: express warranties (what the manufacturer explicitly promises) and implied warranties (what the law attaches automatically). Song-Beverly Act protections run through both, but the rules are different.

Express warranties

An express warranty is any written promise the manufacturer makes about the vehicle’s quality, performance, or durability. The classic example is the “3 years or 36,000 miles” bumper-to-bumper warranty in the owner’s manual. Powertrain warranties (often 5/60), corrosion warranties (often 5/100), and federal emissions warranties are all express warranties.

Under Song-Beverly:

• Express warranties must be honored exactly as written.
• Limitations on duration must be conspicuous.
• The buyer can sue for breach during the entire warranty period, plus the four-year limitations runway from delivery.

Express warranties can be disclaimed — for instance, by selling a vehicle “as-is” without any written warranty. But disclaiming the express warranty does not automatically disclaim the implied warranty.

Implied warranties

California Civil Code § 1791.1 establishes two implied warranties for every consumer good:

1. Implied warranty of merchantability — the goods are fit for their ordinary purpose. For a vehicle, this means it must safely transport people and cargo on public roads in California traffic.
2. Implied warranty of fitness for a particular purpose — if the buyer relied on the seller’s expertise to select goods for a specific purpose the seller knew about, the goods must be fit for that purpose.

Implied warranties attach by operation of law. The seller doesn’t have to say anything; they’re automatic.

Duration of implied warranties

Under § 1791.1(c), the implied warranty of merchantability for consumer goods lasts not less than 60 days and not more than one year after delivery — coterminous with the express warranty if there is one, but never less than 60 days or more than one year. For used vehicles, the implied warranty runs for at least 30 days but not more than three months when sold by a dealer (§ 1795.5).

This duration is shorter than the four-year statute of limitations to sue. A defect must manifest during the implied-warranty window, but a lawsuit on it can be filed up to four years later.

”As-is” sales and the limits of disclaimer

Under § 1792.4, an implied warranty can be disclaimed for used goods sold “as-is” — but only if:

• The disclaimer is conspicuous in writing.
• The vehicle is not sold with any express written warranty.
• The buyer was given a specific opportunity to inspect.
• The disclaimer is presented before sale, not buried in fine print.

Most dealer “as-is” sales fail at least one of these tests. The federal Magnuson-Moss Act also blocks any disclaimer of implied warranties while a written warranty is in force (15 U.S.C. § 2308). Result: implied-warranty protections frequently survive “as-is” claims a dealer might think they’ve eliminated.

Why both warranty types matter in a lemon-law case

A typical California lemon-law complaint pleads breach of:

• Express warranty — for failures within the bumper-to-bumper or powertrain warranty period.
• Implied warranty of merchantability — as an alternative ground covering defects that may have manifested before or after the express warranty expired.

The remedies are similar (buyback/replacement plus fees), but the implied-warranty claim is sometimes easier to prove because the standard (“fit for ordinary purpose”) is more flexible than proving the manufacturer “failed to repair” under a specific express warranty term.

Pleading both also defends against partial defenses: if the manufacturer argues a particular defect fell outside the express-warranty window, the implied-warranty claim can still recover.

Bottom line

If your vehicle stopped doing what cars are supposed to do — start reliably, run safely, brake, steer, accelerate — California implied-warranty law probably covers you regardless of how the dealer or manufacturer characterized the sale. Whether you also have express-warranty coverage depends on the warranty terms and the timing. An experienced California lemon-law attorney will plead whichever theories the facts support.

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