California's lemon law — the Song-Beverly Consumer Warranty Act, Cal. Civ. Code § 1790 et seq. — is one of the strongest consumer protections in the United States. A vehicle qualifies as a lemon when the manufacturer or its authorized dealer cannot fix a substantial defect covered by the warranty after a reasonable number of attempts. A presumption applies when there have been 4 or more repair attempts for the same defect, 2 or more for a safety defect, or the vehicle has been out of service for repair 30+ days total, all within the first 18 months or 18,000 miles. Remedy is a refund or replacement at the consumer's election. The manufacturer must also pay the consumer's attorney fees, which is why California lemon-law attorneys typically take cases with no upfront cost.
| Governing law | Song-Beverly Consumer Warranty Act — Cal. Civ. Code §§ 1790–1795.8 |
|---|---|
| Coverage | New + used vehicles sold or leased with a new-vehicle manufacturer's warranty |
| Presumption window | First 18 months or 18,000 miles |
| Presumption trigger (same defect) | 4 or more repair attempts |
| Presumption trigger (safety defect) | 2 or more repair attempts |
| Presumption trigger (days out) | 30+ days out of service for repair |
| Remedy | Refund or replacement at consumer's choice |
| Refund calculation | Purchase price minus mileage offset for use before defect |
| Attorney fees | Manufacturer pays consumer's attorney fees (fee-shifting) |
| Statute of limitations | 4 years |
| Covered vehicles | Cars, trucks, SUVs, RVs, motorcycles, boats, and other consumer goods |
The Song-Beverly Consumer Warranty Act
California's lemon law is part of the Song-Beverly Consumer Warranty Act, enacted in 1970 and codified at Cal. Civ. Code §§ 1790–1795.8. Song-Beverly covers not just vehicles but many other consumer goods — appliances, electronics, and other items sold with a written warranty. The vehicle-specific provisions are at § 1793.22 (the "Tanner Consumer Protection Act" subsection).
The Act is unusually consumer-friendly compared to lemon laws in other states because of its fee-shifting provision: if the consumer prevails, the manufacturer pays the consumer's attorney fees. This eliminates the main financial barrier to bringing a claim.
What qualifies as a lemon
A vehicle qualifies for lemon-law relief when:
- It was sold or leased with a new-vehicle manufacturer's warranty (or is a used vehicle still under the original manufacturer's warranty).
- It has a substantial defect that impairs the vehicle's use, value, or safety.
- The manufacturer or its authorized dealer has been given a reasonable opportunity to repair the defect.
- Despite that opportunity, the defect has not been fixed.
"Substantial" is fact-specific. A defect that impairs the safety or drivability of the vehicle — engine failures, transmission problems, brake defects, steering issues, electrical faults affecting driving — clearly qualifies. Minor cosmetic issues generally do not.
The 4-repair / 30-day presumption
Cal. Civ. Code § 1793.22 creates a rebuttable presumption that the manufacturer has been given a reasonable opportunity to repair when, within the first 18 months from delivery or 18,000 miles, whichever comes first, any of the following occurs:
- The same defect has been subject to repair 4 or more times and continues to exist.
- The same defect that is likely to cause death or serious bodily injury has been subject to repair 2 or more times and continues to exist.
- The vehicle has been out of service for repair for 30 or more days total (does not have to be consecutive).
The presumption is rebuttable — the manufacturer can present evidence that a reasonable opportunity was not provided (for example, that the defect was caused by owner abuse or unrelated modifications). But when a consumer can document meeting one of the presumption triggers, the burden shifts to the manufacturer.
The presumption is not the only way to win. Even outside the 18-month/18,000-mile window, a consumer can still prove that the manufacturer had a reasonable opportunity to repair and failed. The presumption just makes proving it easier.
Vehicles covered
Song-Beverly covers most consumer vehicles:
- Passenger cars, trucks, SUVs.
- RVs (recreational vehicles) and motorhomes — with some limitations for the coach portion.
- Motorcycles.
- Boats and other watercraft (as "consumer goods").
- New vehicles bought or leased for personal, family, or household use.
- Vehicles bought primarily for business, if the business has 5 or fewer vehicles registered.
- Used vehicles that are still under the original manufacturer's new-vehicle warranty at the time of sale — this is a critical and often overlooked coverage.
Not covered: vehicles sold "as-is" without any express or implied warranty, and vehicles sold with only extended warranties (not the original manufacturer's new-vehicle warranty).
Remedies — refund or replacement
If a vehicle qualifies as a lemon, the consumer can choose between:
Refund (buyback)
The manufacturer refunds the entire purchase price of the vehicle including:
- The down payment.
- All monthly payments made.
- The remaining loan balance (which the manufacturer pays off).
- Registration and license fees.
- Sales tax.
- Reasonable collateral charges (transportation cost, incidental damages).
Less a "mileage offset" for the consumer's use of the vehicle before the defect first appeared. The offset is calculated using a statutory formula: (miles before first repair) ÷ 120,000 × total purchase price.
Replacement
The manufacturer replaces the defective vehicle with a substantially identical new vehicle. Consumer receives the same terms, warranties, and financing as the original, and the manufacturer pays sales tax and registration on the replacement.
Attorney fees paid by manufacturer
Cal. Civ. Code § 1794(d) provides that if the consumer prevails, the manufacturer must pay the consumer's reasonable attorney fees and costs. This is the key structural feature that makes California lemon law accessible: because the manufacturer pays fees on win, California lemon-law attorneys typically work on contingency with no upfront cost to the consumer.
The consumer keeps the entire refund or replacement — the manufacturer pays the attorney separately.
Filing process
- Document repair attempts. Keep every repair order, invoice, and communication with the dealer. Note days out of service.
- Give the manufacturer written notice of the defect and the failed repair attempts, and demand repurchase or replacement. This is a Song-Beverly prerequisite in most cases.
- Complete any qualifying arbitration program the manufacturer offers (many manufacturers offer arbitration through BBB Auto Line or similar).
- File a Song-Beverly lawsuit in Superior Court if the manufacturer refuses.
Most cases settle before trial. A well-documented case with strong repair history and clear defect can resolve in weeks or months rather than years.
Manufacturer arbitration programs
Many manufacturers operate their own arbitration programs (BBB Auto Line, National Center for Dispute Settlement, or in-house programs). Cal. Civ. Code § 1793.22 requires manufacturers to notify consumers of the availability of arbitration.
Consumers are not required to use manufacturer arbitration before suing under Song-Beverly, unless the manufacturer's program meets specific California certification requirements. Even if the consumer participates and loses arbitration, they can still file a lawsuit — arbitration is not final in the California lemon-law context (unlike commercial arbitration).
Statute of limitations
Song-Beverly claims must be filed within 4 years of when the cause of action accrued. Under Mexia v. Rinker Boat Co., 174 Cal. App. 4th 1297 (2009), the clock generally starts when the defect first appears or when the manufacturer fails to conform the vehicle to warranty — not when the vehicle was purchased.
Consumers whose defects arise late in the warranty period (or shortly after) still commonly have viable claims.
State agency contact
California Department of Consumer Affairs — Bureau of Automotive Repair
State agency for vehicle repair complaints; separate from lemon-law civil claims
Compared to neighboring states
Related California laws
Related comparisons
Related guides
Recent changes
- 2024SB 26 modernized several Song-Beverly procedural provisions and clarified manufacturer duties around used-vehicle warranty coverage.
- 2019Kirzhner v. Mercedes-Benz USA, LLC, 39 Cal. 4th 505, clarified that consumer must give manufacturer opportunity to repair defect before suing.
- 2009Mexia v. Rinker Boat Co. confirmed that the 4-year statute of limitations begins when the defect appears, not when the vehicle was purchased.
Need advice on your specific California situation?
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Sources
Primary sources
- Song-Beverly Consumer Warranty Act — Cal. Civ. Code §§ 1790–1795.8. The full statute. https://leginfo.legislature.ca.gov/faces/codesTOCSelected.xhtml?tocCode=CIV
- Cal. Civ. Code § 1793.22 — Vehicle presumption. The 4-repair / 30-day presumption. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=1793.22
- Cal. Civ. Code § 1794 — Remedies and attorney fees. Refund/replacement calculation and fee-shifting. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=1794
- California DCA — Lemon Law Buyback Program. The state's summary of lemon-law rights. https://www.dca.ca.gov/publications/legal_guides/lemon_law.shtml
- Bureau of Automotive Repair. State agency for vehicle repair oversight. https://www.bar.ca.gov/