The California lemon law process runs from your first failed warranty repair to a manufacturer buyback or replacement, with free state-certified arbitration and a lawsuit as backups if the manufacturer refuses. You document every repair attempt, notify the manufacturer directly in writing, send a formal buyback demand, and if the manufacturer does not resolve the claim within the timelines that took effect January 1, 2025, you escalate. If you win, the manufacturer pays your attorney fees.
Does Your Vehicle Qualify
The Song-Beverly Consumer Warranty Act covers new and used vehicles that still carry the manufacturer’s original factory warranty. A used car whose factory warranty has expired is not covered.1California Department of Consumer Affairs. California’s Lemon Law Q&A Cars, pickups, vans, SUVs, and the chassis, cab, and drivetrain of a motorhome all qualify, as do dealer-owned vehicles and demonstrators.
Personal, family, and household use is covered without qualification. Business vehicles qualify only if you have fewer than five vehicles registered in your name in California and the vehicle’s gross weight is under 10,000 pounds.1California Department of Consumer Affairs. California’s Lemon Law Q&A
When You Have Enough Repairs to Make a Claim
California law creates a rebuttable presumption that your vehicle is a lemon if certain repair thresholds are met within the first 18 months of delivery or 18,000 miles, whichever comes first. Any one of these triggers the presumption:2California Legislative Information. California Civil Code 1793.22
- Four or more warranty repair attempts for the same defect without a fix.
- Two or more repair attempts for a defect likely to cause death or serious injury.
- More than 30 calendar days out of service for warranty repairs, cumulatively. The days do not need to be consecutive.
Hitting those numbers does not automatically win the case. It shifts the burden onto the manufacturer to prove the vehicle is not a lemon. You can still bring a claim outside the 18-month/18,000-mile window; you just lose the presumption’s push.
Notify the Manufacturer Directly, Not Just the Dealer
This is where claims quietly collapse. For the four-repair and two-repair presumptions, the statute requires that you have directly notified the manufacturer at least once about the defect. Telling your service advisor at the dealership does not count. If the manufacturer disclosed this requirement in your warranty booklet or owner’s manual, you must send notice to the address the manufacturer designated there.2California Legislative Information. California Civil Code 1793.22
Send a letter describing the unresolved problem before your fourth repair visit. Use certified mail with a return receipt so you have proof it arrived.
Documentation to Collect While It’s Happening
Every lemon law claim lives or dies on paperwork. Reconstructing months later is painful and sometimes impossible, so start on day one.
- Purchase or lease agreement, which proves ownership, price, and warranty terms.
- Every repair order and invoice. The drop-off and pickup dates are how you prove the 30-day threshold, and the technician’s notes show whether your reported symptom was actually addressed.
- The warranty booklet or owner’s manual, which contains the manufacturer’s notification address.
- Emails, letters, and texts with the dealer or manufacturer about the defect, kept in chronological order.
Read the technician’s findings carefully. If you reported “engine stalls at highway speed” and the order says “no problem found,” that mismatch matters. Ask the service advisor to record your reported symptoms accurately every visit.
What Refund to Expect
A buyback is not just the sticker price back. The law requires restitution of the full purchase price including transportation charges and manufacturer-installed options, plus collateral charges like sales tax, license, and registration fees, plus incidental damages such as towing, rental cars, and repair costs you actually paid.3California Legislative Information. California Civil Code 1793.2 Dealer-installed accessories and aftermarket additions you chose are excluded.
The Mileage Offset
The manufacturer subtracts a usage charge for the miles you drove before your first repair visit. Divide the odometer reading at that first repair by 120,000, then multiply that fraction by the purchase price.3California Legislative Information. California Civil Code 1793.2
If you paid $40,000 for a car and had 6,000 miles on it at the first warranty visit, the deduction is (6,000 / 120,000) × $40,000 = $2,000. That is why reporting problems early matters. Every mile before that first repair grows the deduction.
Sending the Written Demand
Once you have enough repair attempts or out-of-service days, send a formal written demand to the manufacturer. Include your VIN, a summary of the recurring defect, dates and outcomes of each repair, total days out of service, and whether you want a full refund or a replacement. Certified mail with return receipt.
Under procedures effective January 1, 2025, sending this demand at least 30 days before filing a lawsuit is a prerequisite. Once the manufacturer receives it, it has 30 days to make a buyback or replacement offer and 60 days to complete the transaction.4California Department of Consumer Affairs. New Lemon Law Procedures Miss those deadlines and you can sell the vehicle and proceed to a lawsuit.
Send it to the manufacturer’s address in your warranty booklet or owner’s manual. Not the dealership. The manufacturer and the dealer are separate entities, and the statute requires the manufacturer itself to receive the notice.
What Happens After Your Demand
The manufacturer may accept the claim and process the buyback, make a lower offer, request an inspection, or deny outright.
If it makes an offer, check it against the statutory formula. Manufacturers sometimes inflate the mileage deduction or leave out collateral charges they owe. If the offer is fair, the buyback must be completed within 60 days of receipt of your demand. Longer than that, and daily penalties start accruing against the manufacturer.4California Department of Consumer Affairs. New Lemon Law Procedures
If the manufacturer denies the claim or ignores you, you have two paths: state-certified arbitration or a lawsuit.
State-Certified Arbitration
The California Department of Consumer Affairs runs an Arbitration Certification Program that gives consumers a free alternative to court. The program certifies and monitors arbitration programs handling warranty disputes between consumers and manufacturers.5California Department of Consumer Affairs. Arbitration Certification Program
You submit an application describing the defect and the manufacturer’s failure to fix it. An independent arbitrator reviews evidence and hears both sides in person, by phone, or through written submissions. Decisions are typically issued within 40 days of the program accepting your claim.4California Department of Consumer Affairs. New Lemon Law Procedures
If the arbitrator rules for you, the manufacturer is bound by the decision. You are not. If the award seems too low, you can reject it and file a lawsuit anyway. The program exists to protect consumers, not to lock them in.
Going to Court
If arbitration does not resolve the claim, or you go straight to litigation, California’s 2025 procedural reforms set hard timelines. Under Code of Civil Procedure section 871.26, once the manufacturer files its answer, both sides must exchange initial documents within 60 days, complete initial depositions within 120 days, and attend mediation within 150 days. Repeated noncompliance by the consumer’s side can result in dismissal; repeated noncompliance by the manufacturer can result in the court granting the consumer’s requested relief.6California Legislative Information. California Code of Civil Procedure 871.26 The point is to push both sides toward faster resolution.
Attorney Fees, Penalties, and Deadlines
If you win a California lemon law case, the manufacturer pays your attorney fees. The statute entitles a prevailing buyer to recover all costs and attorney fees based on actual time expended.7California Legislative Information. California Civil Code 1794 Because of this fee-shifting, most lemon law attorneys take cases on contingency with no upfront cost. The fees come from the manufacturer, not from your refund.
If the manufacturer’s failure to comply with the warranty was willful, a court can add a civil penalty of up to two times your actual damages on top of the refund.7California Legislative Information. California Civil Code 1794 A manufacturer that knows about a widespread defect and stonewalls buyback requests is the scenario the penalty targets. It does not apply to class actions or claims based solely on breach of an implied warranty.
California applies a four-year statute of limitations for breach of warranty claims, running from the date you discovered or should have discovered the defect. Filing within the 18-month/18,000-mile presumption window gives you the strongest position, but claims outside that window remain viable as long as you file within four years.
If Your Vehicle Falls Outside State Coverage
The federal Magnuson-Moss Warranty Act allows consumers to sue any warrantor that fails to honor a written or implied warranty, and prevailing plaintiffs can recover attorney fees.8Office of the Law Revision Counsel. 15 USC 2310 – Remedies in Consumer Disputes California lemon law attorneys often file under both state and federal law. The federal claim is especially useful for vehicles outside Song-Beverly, such as those used exclusively for heavy commercial purposes.