When California consumers buy a product, they’re automatically protected by an implied warranty of merchantability. This means a product — especially a major purchase like a car — should be safe to use and work as intended.
Under Song-Beverly § 1791.1, if a serious vehicle defect keeps a car from performing its basic fitness for purpose, that may be a warranty breach and, in some cases, support a lemon law claim.
In this article, we break down the implied warranty of merchantability and your California consumer rights, so you can recognize when a hidden defect violates your rights.
How implied warranties differ from express warranties
An implied warranty of merchantability (UCC § 2‑314) is an unwritten, legal merchantability standard that promises consumer goods will work, meet basic standards, and be fit for ordinary use. In other words, a new car should drive, a phone should make calls, and a toaster should safely toast bread.
An express warranty is a specific guarantee by the manufacturer or dealer. It explicitly states what vehicle parts are covered, the quality standards, the manufacturer’s obligation, and the warranty time or mileage limits for repairs or replacements.
Express warranties can be written, verbal, or advertisements. For cars, the most common are:
- Bumper-to-bumper
- Powertrain
- Battery (EVs)
- Corrosion/rust
Knowing the difference between written warranty vs implied warranty can protect your legal rights and save you thousands in unexpected repair costs.
Without objection in the trade
In an implied warranty, a product must also meet basic industry standards and be acceptable to other sellers in the same industry. For example, if you buy a new car and its brakes fail on day one, no dealership would accept it for sale. The car would not “pass without objection in the trade.”
Accurate packaging and labeling
Implied warranties also require a product to be properly contained, packaged, and labeled as required. For a car, that includes:
- Monroney Label (Window Sticker): The vehicle’s make, model, EPA fuel economy ratings, standard equipment, and optional features.
- Owner’s Manual & Safety Inserts: Instructions and safety guidelines packaged inside the vehicle glovebox.
- Certification Tags: Doorjamb stickers with Gross Vehicle Weight Rating (GVWR), tire pressure specs, and manufacturing dates.
If a label specifies certain safety features, like lane assisting or emergency braking, those features must be present and work properly. Incorrect or misleading information can be a breach of the implied warranty.
Limitations
An implied warranty doesn’t apply to every transaction. Two additional conditions must be met. The seller must be a “merchant” (dealership or professional auto seller), and the transaction must qualify as a “sale of goods” (a car).
That means an implied warranty won’t cover private sellers, an estate sale, or a business liquidating a company fleet. It also excludes services, repairs, and auto financing. If a deal combines both — like buying a car with a prepaid maintenance plan — the warranty only covers the vehicle itself.
It also doesn’t apply to used “as-is” cars with proper written dealer disclosure and normal wear and tear. Warranty duration may also vary depending on state law and the terms of the sale.
Using implied warranty violations to strengthen your lemon case
When you buy a new car, you expect it to run properly, be safe, reliable, and free from significant defects. But too often, dealerships and manufacturers leave drivers stranded with recurring problems and failed repair attempts.
Under the Song-Beverly Act, when a vehicle defect creates a nonconformity that causes a substantial impairment to your car’s safety, value, or use, the law protects you — not the manufacturer.
If you have a lemon law case, you may be entitled to a buyback, replacement, reimbursement for related expenses, attorney fees, and possibly a civil penalty of up to twice your actual damages if the manufacturer acted willfully.
At Brennan Law, we aggressively fight for the best possible lemon law case results for our clients. We’ll evaluate your claim, build your case, and send a repurchase demand to the manufacturer.
Together, let’s turn a breach of implied warranty into real leverage.