How the Lemon Act Protects California Car Buyers

When your car spends more time in the shop than in your driveway, it’s natural to feel frustrated and unsure what to do next. California’s Lemon Act—part of the Song-Beverly Consumer Warranty Act—was designed to protect buyers and lessees from defective vehicles that can’t be fixed within a reasonable number of repair attempts. Below, ZapLemon explains the essentials in plain language so you can better understand your rights and your next steps.

How California’s Lemon Act Protects Car Buyers

California’s Lemon Act requires manufacturers to repair vehicles that have defects covered by the manufacturer’s warranty. If the problem continues after a reasonable number of attempts, the law may entitle the owner to a remedy—often a refund (sometimes called a repurchase) or a replacement vehicle. These protections apply to many new vehicles and, in many situations, to used or certified pre-owned vehicles that are still under the manufacturer’s warranty. The law covers purchases and leases, and it applies to defects that substantially impair the vehicle’s use, value, or safety.

If a vehicle qualifies as a lemon, the remedies typically include a refund of what you paid (with a lawful deduction for the miles driven before the first repair attempt), or a comparable replacement vehicle. Refunds commonly include related costs like sales tax, registration fees, and certain incidental expenses such as towing and rental cars connected to the defect. In some circumstances, the manufacturer may also be responsible for paying off any remaining auto loan balance, so you aren’t stuck with a car payment on a car you can’t use.

The process is meant to be accessible to consumers. You are not required to use a manufacturer’s arbitration program to pursue your rights (though some people choose to). The law also provides that, if you prevail, the manufacturer may be responsible for your reasonable attorney’s fees and costs, which helps level the playing field. While outcomes depend on the facts of each case, knowing these protections exist can help you approach ongoing vehicle defects with confidence.

What Qualifies as a Lemon Under California Law

A vehicle is more likely to qualify as a lemon when a defect covered by the manufacturer’s warranty substantially impairs the use, value, or safety of the car—and the manufacturer or its authorized dealer cannot fix it after a reasonable number of repair attempts. Common examples include repeated transmission failures, engine stalling, hard or delayed shifting, overheating, electrical or infotainment malfunctions, brake or steering problems, airbag warning lights, or persistent check-engine issues. The defect cannot be caused by misuse, unauthorized modifications, or lack of maintenance.

California’s Lemon Law includes a helpful “presumption” period that provides guidance during the first 18 months or 18,000 miles, whichever comes first. Under this presumption, the vehicle may be considered a lemon if, for example, the same problem has been repaired four or more times, a serious safety defect has been repaired two or more times, or the car has been out of service for repairs for a total of 30 or more days. Even if your situation falls outside those numbers or beyond the presumption period, you may still have a valid claim—what matters is whether the defect is substantial and not fixed within a reasonable number of attempts.

Practical steps can make a big difference. Keep every repair order and invoice, and make sure they clearly list your complaint, the technician’s findings, the dates, and the mileage in and out. Report issues promptly while the vehicle is under warranty, ask about any recalls or technical service bulletins, and consider notifying the manufacturer in writing if repairs drag on—giving them a fair opportunity to fix the problem. These simple habits create a clear repair history that helps evaluate whether your vehicle may qualify under California’s Lemon Act.

This overview is for general informational purposes only and is not legal advice. Reading this page does not create an attorney–client relationship with ZapLemon. Every situation is unique, and the right next step depends on the specific facts of your case and your warranty coverage.