Overview

Key details to review

California’s Song-Beverly Consumer Warranty Act (the “lemon law”) can protect buyers and lessees of used vehicles when a warrantied defect substantially impairs use, value, or safety and the manufacturer or warrantor fails to fix it after a reasonable number of attempts. Coverage is strongest when your used car is still under the original manufacturer’s warranty (including powertrain, emissions, or extended warranties), is a Certified Pre-Owned vehicle with a manufacturer-backed warranty, or was sold with a dealer written warranty or service contract. “As-is” sales are generally not covered, though special rules apply to Buy-Here-Pay-Here dealers (who must provide at least a 30-day/1,000-mile warranty) and to vehicles resold by manufacturers as “lemon law buybacks” (which must include specific disclosures and a 12-month/12,000-mile warranty). Remedies can include a repurchase (buyback), replacement, or cash settlement, plus incidental damages and, in willful cases, civil penalties.

Who Qualifies

You may qualify in California if: (1) you bought or leased a used car, light truck, SUV, or van primarily for personal, family, or household use, or for a small business use where the vehicle’s gross vehicle weight is under 10,000 lbs and your business has five or fewer vehicles registered in California; (2) the defect first manifested and repair attempts occurred while a manufacturer or dealer warranty was in effect; and (3) the nonconformity is not caused by abuse, unauthorized modifications, or neglect. Motorhomes are partly covered (chassis/cab portion), while off-road vehicles, commercial vehicles over 10,000 lbs GVWR, and purely “as-is” private-party sales typically fall outside lemon law coverage. Used electric vehicles can also qualify if defects arise under an applicable manufacturer or emissions warranty.

How CA Law Applies

For used cars, California’s lemon law focuses on warrantied “nonconformities” that substantially impair use, value, or safety. You must give the manufacturer or its authorized dealer a reasonable number of chances to repair. A statutory presumption helps consumers when, within the first 18 months or 18,000 miles from the vehicle’s original in-service date (even if you are a subsequent owner), the vehicle has either: (a) two or more repair attempts for a defect likely to cause serious injury or death; (b) four or more attempts for other nonconformities; or (c) 30+ cumulative days out of service. Even if your used car is beyond that 18-month/18,000-mile window, you can still win by proving the manufacturer failed to repair during the warranty period despite reasonable opportunities. Time the vehicle spends in the shop generally tolls (extends) the warranty. If the manufacturer cannot conform the car after reasonable attempts, it must promptly replace or repurchase the vehicle. A buyback includes refund of the price paid (or a proportion for a lease), taxes, registration, and certain incidental damages, less a “mileage offset” based on miles at the first qualifying repair attempt (commonly calculated by: purchase price × miles at first repair ÷ 120,000). California also permits recovery of reasonable attorney’s fees and, for willful violations, civil penalties up to two times actual damages. Manufacturers that resell “lemon law buybacks” must brand the title, disclose the prior repurchase, fix the defect, and give the next buyer at least a 12-month/12,000-mile warranty.

Step-by-Step Process

  1. Confirm warranty status: Identify the vehicle’s original in-service date and remaining manufacturer warranties (bumper-to-bumper, powertrain, emissions, battery/EV components). For dealer warranties, get the written terms. If you bought from a Buy-Here-Pay-Here dealer, confirm you received the mandatory 30-day/1,000-mile warranty.
  2. Document the defect: Keep a dated log of symptoms, warning lights, videos/photos, and note how the problem affects use, value, or safety (stalling, brake issues, repeated no-starts, battery failures, etc.).
  3. Use authorized repair facilities: Take the car to an authorized manufacturer dealer during the warranty period. Describe all symptoms clearly and request that each concern be written on the repair order (RO). Keep copies of every RO and invoice, even when “no problem found.”
  4. Request loaners/reimbursements: Ask for a loaner or rental reimbursement when the vehicle is undriveable or held overnight. Track all out-of-pocket costs (towing, rental, rideshare, hotel, lost wages) tied to the defect.
  5. Pursue repeat repairs promptly: Return as soon as the issue recurs. Do not wait months between visits; gaps can undercut your timeline and arguments about “reasonable” attempts.
  6. Send a formal demand: After multiple unsuccessful repairs or 30+ days out of service, send a written buyback/replacement request to the manufacturer’s customer care department referencing the Song-Beverly Act, listing repair dates, mileage at first repair, and attaching ROs. Send by certified mail and keep proof.
  7. Consider arbitration: If the manufacturer offers a state-compliant arbitration program (e.g., BBB AUTO LINE for certain brands), it can provide a quicker path to relief. Arbitration is optional in California; you may proceed directly to court, especially if seeking civil penalties.
  8. Avoid jeopardizing claims: Do not modify the vehicle, tune the ECU, or ignore maintenance. Use authorized dealers while under warranty. If advised “it’s normal,” ask the dealer to escalate to technical assistance and to check TSBs and recalls.
  9. Consult a CA lemon law attorney: Fee-shifting rules often mean the manufacturer pays your reasonable attorney’s fees if you prevail. An attorney can calculate the correct mileage offset, include incidental damages, and evaluate potential civil penalties.
  10. Preserve evidence and deadlines: California’s statute of limitations for breach of warranty is generally four years from the breach. Keep all communications, ROs, tow receipts, loaner records, and your defect log. File timely.

Common Mistakes

  • Assuming “as-is” private sales qualify; most do not unless a warranty applies or there was fraud.
  • Using independent shops during the warranty period, resulting in no manufacturer-authorized repair records.
  • Failing to return promptly for repeat issues, weakening the “reasonable number of repair attempts” showing.
  • Losing repair orders, invoices, and tow/rental receipts that prove time out of service and costs.
  • Allowing the dealer to omit your complaints from the repair order description.
  • Waiting until after the warranty expires to report a recurring problem that first appeared earlier.
  • Modifying the vehicle (aftermarket tunes, lifts) and giving the manufacturer a causation defense.
  • Misunderstanding the mileage offset or settlement calculations and accepting an undervalued offer.
  • Skipping a formal written demand to the manufacturer, which can delay or derail resolution.
  • Overlooking special CA rules: BHPH mandatory 30-day/1,000-mile warranties; branded “lemon law buyback” disclosures; two-day contract cancellation option for many dealer-sold used cars under $40,000.

What To Do Next

Gather your sales/lease contract, warranty booklet, all repair orders, tow and rental receipts, and a defect timeline with mileage at each repair. Verify remaining warranty coverage and whether your situation falls within the 18-month/18,000-mile presumption window from the original in-service date. Schedule another visit with an authorized dealer if the issue persists and ensure every concern is documented on the RO. Send a certified written demand to the manufacturer requesting repurchase or replacement under the Song-Beverly Act, citing dates, mileage at first repair, and total days out of service. Consider manufacturer arbitration for speed, or consult a California lemon law attorney to pursue a buyback or settlement, recover incidental damages and fees, and evaluate civil penalty exposure. Act promptly to protect your rights and preserve evidence; delays can limit your remedies.

For a broader overview, see our CA lemon law guide.