Automobile Lemon Law California: How the California Lemon Law Works

If your car spends more time in the shop than on the road, you’re probably wondering whether California’s Lemon Law can help. The California Lemon Law (part of the Song-Beverly Consumer Warranty Act) protects buyers and lessees when a new or used vehicle under the manufacturer’s warranty has a defect that the dealer can’t fix after a reasonable number of attempts. Below, ZapLemon explains the basics of how the law works, what counts as a “lemon,” and the general steps involved—so you can make informed decisions about your next move.

Automobile Lemon Law in California: The Basics

California’s Lemon Law applies to many new cars, trucks, SUVs, vans, and many used or leased vehicles that are still covered by the manufacturer’s new-vehicle warranty. That can include certified pre-owned vehicles or used cars with remaining factory coverage. The law aims to ensure that consumers get what they paid for: a vehicle that can be safely used as intended.

A vehicle may qualify as a “lemon” if it has a defect covered by the manufacturer’s warranty that substantially impairs the vehicle’s use, value, or safety—and the manufacturer (usually through an authorized dealer) can’t repair it after a reasonable number of attempts. California has a helpful guideline called the “Tanner presumption”: during the first 18 months or 18,000 miles, a vehicle may be presumed a lemon if the same problem was repaired 4 or more times, a serious safety defect was repaired 2 or more times, or the vehicle was out of service for repairs for more than 30 total days. This presumption makes claims easier, but it isn’t a deadline; vehicles can still qualify outside the 18 months/18,000 miles if the defect appears and persists during the warranty period.

Coverage is broad, but not unlimited. The law typically covers vehicles bought or leased in California for personal, family, or household use, and certain small business vehicles under 10,000 pounds gross vehicle weight when the business has five or fewer vehicles. Electric vehicles and hybrids are covered, including issues like battery defects, charging failures, and range loss, as long as the defect is under warranty. Problems caused by abuse, neglect, or unauthorized modifications generally aren’t covered. If a vehicle qualifies, remedies can include a repurchase (buyback) or a replacement vehicle, plus reimbursement for certain incidental costs, subject to a mileage offset.

How It Works: Eligibility, Repairs, and Remedies

Eligibility usually comes down to a few key points: the defect must be covered by the manufacturer’s warranty; it must substantially affect use, value, or safety; the dealer must have had a reasonable number of chances to fix it; and the vehicle was bought or leased in California. Examples include engines that stall, transmissions that slip or shudder, brake failures, steering pulls, airbag or sensor faults, infotainment/glitchy electronics that repeatedly fail, or EV battery and charging issues. If you’re unsure about your warranty, check your sales or lease contract and the warranty booklet, or contact the manufacturer.

Repairs and documentation are central. Always take the vehicle to an authorized dealership, describe the symptoms clearly, and ask that each concern be written on the repair order. Keep copies of repair orders, invoices, and tow or rental receipts, and note dates the vehicle was out of service. If the same problem keeps returning or the vehicle spends 30 or more cumulative days in the shop, you may be approaching “reasonable attempts.” You can also ask about manufacturer dispute programs or arbitration; some consumers try these, though they are not always required or the best fit for every situation.

If your vehicle qualifies, the main remedies are repurchase or replacement. A repurchase typically includes your down payment, monthly payments made, taxes and fees, and certain incidental expenses, minus a mileage offset that accounts for the miles driven before the first documented repair attempt for the defect (commonly calculated as purchase price × first-repair miles ÷ 120,000). A replacement is a new, substantially identical vehicle, with credit for amounts you already paid and no mileage offset beyond what the statute allows. In some cases, consumers may recover incidental and consequential damages and, if the manufacturer willfully violated the law, civil penalties—but outcomes vary by case. Because every situation is unique, consider contacting ZapLemon for a consultation to understand your options based on your specific facts.