US-CaliforniaDoes California's Lemon Law apply to used cars?
Yes, California's Lemon Law applies to used cars — but only if they are still covered by the manufacturer's new car warranty at the time of purchase or repair.
What the Law Says
California's Song-Beverly Consumer Warranty Act — commonly called the Lemon Law — applies to both new and used vehicles, as long as the vehicle is still under the manufacturer's original new-car warranty when the defect arises.
The law does not exclude used cars. Instead, it hinges on whether the vehicle is covered by a valid express (written) warranty issued by the manufacturer — typically the original new-car bumper-to-bumper or powertrain warranty.
If you buy a used car 'as-is,' with no remaining manufacturer warranty, the Lemon Law does not apply. But if the car is still under the original factory warranty (e.g., a 3-year/36,000-mile bumper-to-bumper warranty that hasn’t expired), and the defect occurs during that period, you may qualify.
The law requires that the manufacturer (or its authorized dealer) be given a reasonable number of opportunities to fix a substantial defect — generally four repair attempts, or 30 cumulative business days out of service for repairs — while the vehicle is still under warranty.
Statutory TextEvery new motor vehicle which is sold… shall be accompanied by an express written warranty… This section applies to any motor vehicle… including a used motor vehicle, if the vehicle is still under the manufacturer’s express written warranty.
— Civil Code § 1793.22(e) — Definition of 'motor vehicle' and warranty coverage
Statutory TextA reasonable number of attempts… shall be presumed to have been undertaken if… the same nonconformity has been subject to repair four or more times… or the vehicle is out of service… for a cumulative total of more than 30 calendar days.
— Civil Code § 1793.22(d)(2) — Presumption of reasonable repair attempts
What Courts Have Said
California courts have consistently held that the Lemon Law’s protections extend to used vehicles — provided the statutory warranty conditions are met.
Court affirmed that a used Mercedes qualified under the Lemon Law because it was purchased with over 12 months and 10,000 miles remaining on the original manufacturer warranty.
Held that the Lemon Law applies to certified pre-owned (CPO) vehicles only to the extent they remain under the original or extended manufacturer warranty — not the CPO warranty alone.
What to Do
Check your vehicle’s original manufacturer warranty expiration date (by time and/or mileage).
Document every repair attempt: dates, descriptions, dealer names, and repair orders.
Notify the manufacturer in writing (certified mail) after the fourth repair or 30th day out of service.
Request arbitration through the manufacturer’s state-certified program — or file a lawsuit within two years of the warranty expiration date.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.