California Lemon Law for a Used Car: What Qualifies

The Song-Beverly Consumer Warranty Act is a warranty statute, not a vehicle-age statute, and that one fact settles most used-car questions. This article covers which used vehicles qualify, which warranties count, how the repair-attempt presumption applies to a second owner, and where the line falls on “as is” sales. The broader set of California consumer rights, including complaint channels and remedies outside the warranty statutes, is covered separately.

How a used car falls under Song-Beverly

Two independent routes carry a used vehicle into the act, and they lead to different defendants.

The first route runs through the manufacturer. Cal. Civ. Code § 1793.22(e)(2) defines “new motor vehicle” to include a dealer-owned vehicle, a demonstrator, “or other motor vehicle sold with a manufacturer’s new car warranty.” A car resold while the original factory warranty is still running is sold with a manufacturer’s new car warranty. The manufacturer’s obligation to repair, and then to replace or refund, follows the car to the second owner under Cal. Civ. Code § 1793.2.

The second route runs through the seller. Cal. Civ. Code § 1795.5 places on “the distributor or retail seller making express warranties with respect to used consumer goods” the same obligations the act imposes on manufacturers. A dealer that issues its own written warranty takes on the duty to maintain service facilities and to honor the warranty terms for its duration.

Which route applies changes who answers the claim. A factory warranty balance points at the manufacturer. A dealer’s own warranty points at the dealership.

Warranties that bring a used vehicle inside the lemon law

The remaining balance of a factory warranty. Manufacturer bumper-to-bumper and powertrain warranties are generally tied to the vehicle rather than the original buyer and transfer on resale. A defect that appears while that coverage is unexpired is a warranty defect, and § 1793.22(e)(2) treats the car as a new motor vehicle for lemon law purposes.

Certified pre-owned coverage. A CPO program adds manufacturer-backed coverage on top of, or after, the original warranty. California regulates how the label is used: Cal. Veh. Code § 11713.18 bars a dealer from advertising or selling a used vehicle as “certified” in a list of circumstances, including where the term is used in a way that is untrue or misleading. The California Attorney General’s lemon law and car-buying guidance adds that a vehicle advertised as certified must receive a complete inspection, with a copy of the inspection report given to the buyer.

A dealer’s own written warranty. Independent lots sometimes issue short written warranties, commonly 30 days or 1,000 miles. Under Cal. Civ. Code § 1795.5 that written promise carries the act’s obligations for its stated duration.

Service contracts. An extended service contract bought as a separate product is not the same thing as a warranty included in the sale price. The Federal Trade Commission’s Used Car Rule requires a dealer to post a Buyers Guide on each used vehicle showing whether the car comes with a warranty or is sold as is.

The repair-attempt presumption applied to a used car

Once a used car is inside the act through a manufacturer’s new car warranty, the Tanner Consumer Protection Act presumption in Cal. Civ. Code § 1793.22(b) becomes available. It applies when, within 18 months of delivery of the vehicle to the buyer or 18,000 miles on the odometer, whichever occurs first, one of the following happens:

• The same nonconformity is likely to cause death or serious bodily injury if the vehicle is driven, has been subject to repair two or more times by the manufacturer or its agents, and the buyer has directly notified the manufacturer at least once of the need for repair.
• The same nonconformity has been subject to repair four or more times by the manufacturer or its agents, and the buyer has notified the manufacturer of the need for repair.
• The vehicle has been out of service for repair of nonconformities by the manufacturer or its agents for a cumulative total of more than 30 calendar days since delivery to the buyer.

The presumption is a shortcut, not the only path. A buyer outside the 18-month or 18,000-mile window can still argue that the manufacturer failed to conform the vehicle after a reasonable number of repair attempts under Cal. Civ. Code § 1793.2(d), which sets no fixed count.

The implied warranty that rides along with a used-car warranty

Selling a used car with an express warranty also creates an implied warranty of merchantability, a basic promise that the vehicle is fit for ordinary use. Cal. Civ. Code § 1795.5(c) sets its length: the implied warranty runs for the same period as the express warranty, but in no event less than 30 days nor more than three months following the sale of used consumer goods to a retail buyer. Where the express warranty states no duration, the implied warranty runs for the maximum three-month period.

As of 2026, that short window is what makes a 30-day dealer warranty consequential. A defect surfacing in week three sits inside both warranties. The same defect surfacing in month five sits outside a warranty that has expired, and the implied warranty has expired with it.

Used-car sales the lemon law does not reach

“As is” sales with no written warranty. When the Buyers Guide is marked “as is” and no manufacturer coverage remains, the replace-or-refund machinery has nothing to attach to. The Attorney General’s consumer guidance on lemon vehicles notes that a buyer may still have lemon law rights despite an “as is” marking, which usually points to factory coverage that was still running at the time of sale.

Private-party sales. The act’s obligations fall on manufacturers, distributors, and retail sellers. A neighbor selling a car out of a driveway is none of those.

Excluded vehicle types. Cal. Civ. Code § 1793.22(e)(2) excludes motorcycles and vehicles not registered under the Vehicle Code because they are operated exclusively off the highways.

A separate California rule gives used-car buyers a limited unwind right that does not depend on any warranty. Cal. Veh. Code § 11713.21 requires dealers to offer a two-day contract cancellation option on used vehicles. As of 2026, the requirement does not apply to a vehicle with a cash price of forty thousand dollars ($40,000) or more, a motorcycle, or a recreational vehicle, and the option is a separate purchase made at signing rather than a right claimed afterward.

What a qualifying used-car claim produces

When a manufacturer cannot conform a covered vehicle to the applicable warranties after a reasonable number of attempts, Cal. Civ. Code § 1793.2(d)(2) requires the manufacturer to promptly replace the vehicle or promptly make restitution, and the buyer is free to elect restitution instead of replacement.

The mileage offset formula is fixed. Under Cal. Civ. Code § 1793.2(d)(2)(C), the amount directly attributable to use before the first repair visit is the purchase price multiplied by a fraction with a denominator of 120,000 and a numerator equal to the miles traveled before the buyer first delivered the vehicle for correction of the problem. A used car bought at 40,000 miles and first brought in at 46,000 miles produces a 6,000/120,000 offset against the price the second owner paid.

1. Establish what warranty was in force

   Pull the purchase contract, the Buyers Guide, and any warranty booklet or CPO certificate. The question is narrow: on the day of sale, was there a manufacturer new car warranty balance, a CPO warranty, or a written dealer warranty on this vehicle.

2. Take the vehicle to an authorized repair facility

   Repairs that count are those performed by the manufacturer or its agents on a manufacturer warranty claim, or by the warranting dealer on a dealer warranty. Independent-shop repairs generally do not count as warranty repair attempts.

3. Keep every repair order

   Each visit produces a repair order listing the complaint, the diagnosis, the parts replaced, and the days the vehicle was held. Repair-attempt counts and out-of-service day counts are proved from these documents.

4. Notify the manufacturer directly

   The Tanner presumption requires direct notice to the manufacturer on the safety-defect and four-attempt paths. Manufacturers publish a customer relations address in the warranty booklet, and written notice creates a dated record.

5. Choose a forum

   Options include the manufacturer’s dispute resolution program, a civil action, and small claims court where the amount fits that court’s limit. A prevailing buyer can recover costs and reasonable attorney’s fees under Cal. Civ. Code § 1794(d).