California Lemon Law: How to File a Claim and What You're Owed for a Defective Car
If your car has spent more time in the shop than in your driveway and the dealer still hasn't fixed it, California law gives you real leverage. The Song-Beverly Consumer Warranty Act, the state's primary lemon law, entitles qualifying buyers to a full repurchase or a replacement vehicle - and if you have to sue and win, the manufacturer pays your attorney fees.
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What Qualifies Under California's Lemon Law
Song-Beverly covers new vehicles purchased or leased in California. It also applies to used vehicles that were still under the original manufacturer's express warranty when you bought them - so a certified pre-owned car sold with the remainder of a factory warranty can qualify.
The defect has to substantially impair the vehicle's use, value or safety. A persistent cosmetic flaw is a different argument than a recurring engine stall, a transmission that slips or a brake system that fails intermittently.
California law creates a legal presumption of lemon status under specific conditions. If the manufacturer or its authorized dealer made at least four repair attempts for the same defect without success, you're in presumption territory. For a defect that could cause death or serious bodily injury, two failed attempts is enough. A third trigger: if the vehicle was out of your possession for 30 or more cumulative calendar days for repairs - across multiple visits, for any covered defects - that can also support a claim.
These thresholds create a presumption, not a hard cutoff. A claim can succeed with fewer attempts if the facts show the manufacturer had a fair opportunity to fix the problem and didn't.
Build Your Paper Trail Before You Do Anything Else
Every dealer repair visit should have generated a written repair order. Collect all of them. Each one should show the date you brought the vehicle in, the mileage, your description of the problem and what the dealer claims it did. A repair order that says "no problem found" or "normal operation" for a defect you can consistently reproduce is still useful documentation - it shows the manufacturer was on notice.
Keep a running log of every day the car was out of your possession. The 30-day threshold is cumulative, so three separate week-long repair visits eventually add up. If the manufacturer's customer relations line has been involved, keep records of those calls: dates, names if you got them, what was said. Written correspondence is better than phone calls.
See also: How to Use California's Lemon Law to Get a Refund or Replacement for a Defective Car · San Jose Rent Control: Which Apartments Are Covered, What Landlords Can Charge, and How to File a Complaint
One thing to pay attention to: the mileage on the vehicle at the time of the first repair attempt matters for the refund calculation, so note it on your own records even if the repair order captures it.
What You Can Get If Your Claim Succeeds
Under Song-Beverly, you choose between a replacement vehicle comparable to your original or a full repurchase. Either way, the manufacturer must cover taxes, registration fees and other government charges tied to the original transaction.
For a repurchase, the refund isn't quite dollar-for-dollar. The law allows a mileage offset for miles you drove before the first repair attempt - the formula is set by California Civil Code section 1793.2 and divides your mileage at first repair by a fixed statutory denominator, then multiplies that fraction by the original purchase price. The California Department of Consumer Affairs explains the current calculation at dca.ca.gov, and it's worth running the numbers before you negotiate, because the offset can be significant if you drove the car a while before problems started. If you financed the vehicle, the repurchase must also cover the outstanding loan balance.
If the manufacturer refuses to comply and you win in court, Song-Beverly allows the court to award a civil penalty of up to twice your actual damages, on top of attorney fees and litigation costs.