This is one of the procedures covered in California consumer rights: laws, complaints, and remedies. The statute behind the process is the Song-Beverly Consumer Warranty Act, Cal. Civ. Code §§ 1790–1795.8, with the repair-attempt rules in the Tanner Consumer Protection Act at Cal. Civ. Code § 1793.22. What follows is the sequence in order: confirming the vehicle and the defect qualify, counting repair attempts, sending written notice to the manufacturer, and choosing between arbitration and court.
Which vehicles and defects qualify
The lemon law attaches to the manufacturer’s original written warranty, not to an extended service contract bought separately. Cal. Civ. Code § 1793.22(e)(2) defines a “new motor vehicle” as one bought or used primarily for personal, family, or household purposes. The same definition reaches business vehicles: one with a gross vehicle weight under 10,000 pounds bought primarily for business use qualifies as long as no more than five motor vehicles are registered to that business in California. Dealer-owned vehicles and demonstrators sold with a manufacturer’s new car warranty are inside the definition. Motorcycles, and vehicles unregistered under the Vehicle Code because they run exclusively off-highway, are outside it. For a motor home, the chassis and propulsion portion are covered; the portion built for human habitation is not.
The defect matters as much as the vehicle. Section 1793.22(e)(1) defines a “nonconformity” as a defect that substantially impairs the use, value, or safety of the vehicle to the buyer or lessee. That standard is why a rattle nobody can hear at speed rarely supports a claim while a recurring stall does. Lessees are not left out: Cal. Civ. Code § 1793.2(d)(2)(D) treats a lessee of a new motor vehicle as a buyer for the replacement-or-restitution remedy.
Used vehicles run on a narrower track, because coverage turns on whether a manufacturer’s warranty was still running when the vehicle changed hands. The eligibility test for a California lemon law used car claim differs from the new-vehicle process described here.
When repair attempts add up to a presumption
The starting obligation is a repair deadline. Under Cal. Civ. Code § 1793.2(b), goods that do not conform to an express warranty must be serviced or repaired to conform within 30 days, unless the buyer agrees in writing otherwise. Delay caused by conditions beyond the manufacturer’s control extends that period.
Repeated failed repairs then trigger the Tanner presumption. Under Cal. Civ. Code § 1793.22(b), a reasonable number of repair attempts is presumed if, within 18 months from delivery to the buyer or 18,000 miles on the odometer, whichever comes first, any one of the following happened:
- The same nonconformity was subject to repair four or more times by the manufacturer or its agents.
- The same nonconformity is likely to cause death or serious bodily injury if the vehicle is driven, and it was subject to repair two or more times.
- The vehicle was out of service for repair of nonconformities for a cumulative total of more than 30 calendar days since delivery.
Two conditions attach to the presumption. For the two-attempt and four-attempt paths, the buyer must have directly notified the manufacturer of the need for repair at least once, and that requirement applies only where the manufacturer clearly and conspicuously disclosed it in the warranty or owner’s manual along with the address for the notice. The presumption is also rebuttable, affecting the burden of proof, and section 1793.22(b) allows a buyer to assert it in any civil action, including a small claims case. Dealer repair orders are the evidence that carries the count.
What a manufacturer owes on a qualifying claim
When a manufacturer cannot conform a new motor vehicle to its express warranty after a reasonable number of attempts, Cal. Civ. Code § 1793.2(d)(2) requires it to promptly replace the vehicle or promptly make restitution. The choice belongs to the buyer: the statute states that a buyer is free to elect restitution in lieu of replacement and can never be required to accept a replacement vehicle.
Restitution is the actual price paid or payable, including transportation charges and manufacturer-installed options, plus collateral charges such as sales or use tax, license fees, and registration fees, plus incidental damages including reasonable repair, towing, and rental car costs actually incurred. Non-manufacturer items installed by the dealer or the buyer are excluded. From that total the manufacturer may subtract a use offset, computed under the same subdivision by multiplying the vehicle’s price by a fraction whose denominator is 120,000 and whose numerator is the miles driven before the first delivery for repair of the problem that gave rise to the nonconformity.
Money beyond the buyback is possible. Cal. Civ. Code § 1794(d) requires the court to award a prevailing buyer costs and attorney’s fees based on actual time expended, which is why many lemon claims are handled on contingency. Section 1794(c) allows a civil penalty of up to two times actual damages where the failure to comply was willful, and section 1794(e)(2) removes that penalty entirely if the manufacturer maintains a qualified third-party dispute resolution process. The broader picture of who qualifies and what a buyback covers sits in the California lemon law overview.
Notifying the manufacturer before suing
Since 2025 California has run two pre-suit regimes side by side. Cal. Code Civ. Proc. § 871.20 applies only to manufacturers that affirmatively elected into the chapter, and the election binds them for five calendar years. The Department of Consumer Affairs publishes the list of manufacturers who opted in and, under SB 26, updates it by December 15 each year. Checking that list first tells a vehicle owner which set of steps applies.
For an opted-in manufacturer, Cal. Code Civ. Proc. § 871.24 sets out a written notice that must go out at least 30 days before an action seeking civil penalties. That section became operative on July 1, 2025.
Assemble the repair record
Collect every repair order, the sales or lease agreement, the current registration, and the finance account information. Section 871.26 of the Code of Civil Procedure requires these same documents in early disclosures if the dispute reaches court, so the file assembled now is the file used later.
Send the written notice and demand
Under
Cal. Code Civ. Proc. § 871.24(a), the notice states the consumer’s name, the accurate Vehicle Identification Number, and a brief summary of the repair history and problems, and it demands that the manufacturer repurchase or replace the vehicle. Minor deviations in the notice do not disqualify a consumer from seeking civil penalties.Use the required delivery method
Section 871.24(d) requires the notice in writing, sent either by email to the address prominently displayed on the manufacturer’s website for this purpose or by certified or registered mail with return receipt requested to the address in the owner’s manual or warranty booklet. Manufacturers must publish that contact information in both English and Spanish.
Keep the vehicle and watch the clock
The consumer must have possession of the vehicle when the notice is sent and must keep it for at least 30 days after the manufacturer receives the notice. If the manufacturer offers restitution or replacement, possession runs the full 60 days from receipt. If no offer arrives within 30 days, section 871.24(g)(1) permits the consumer to sell the vehicle and still pursue remedies, including civil penalties.
The manufacturer’s side of the deadline is symmetrical. A civil-penalty claim is barred if the manufacturer offers restitution or replacement within 30 days after receiving the notice and completes it within 60 days of the original notice, per section 871.24(e). An action for restitution or replacement alone can be filed without sending the notice at all, but the consumer then holds the vehicle at the time the complaint is filed and gives up civil penalties.
Arbitration through a state-certified program
Many manufacturers sponsor an arbitration program certified by the Department of Consumer Affairs. The department’s Arbitration Certification Program reports that arbitration is free to the consumer, that decisions usually come within 40 days after the program receives the application, and that a manufacturer must perform an accepted decision within 30 days. Consumers present a case in person, by telephone, virtually, or in writing, and the program requests repair orders, the sales contract, and the registration from both sides.
Arbitration interacts with the court track in two ways. Under Cal. Civ. Code § 1793.22(c), a buyer who received timely written notice that a qualified process exists cannot assert the Tanner presumption until after first resorting to that process, and any limitations period is extended by the days the dispute sat with the program. Rejecting an arbitrator’s decision leaves the court option open; accepting it binds the manufacturer to perform.
Not every manufacturer has a certified program. As of 2026 the department lists BBB Auto Line, the California Dispute Settlement Program, and the Consumer Arbitration Program for Motor Vehicles as the three certified programs, each covering a defined set of brands.
Filing in court and the first months of the case
A Song-Beverly action is an ordinary civil action, filed in the superior court for the county with proper venue. Smaller buybacks and repair-cost claims can go to small claims court, where the California courts self-help center explains how to start a small claims case and where the Tanner presumption remains available. The outer time limit comes from the four-year contract rule in Cal. Com. Code § 2725, which runs from the breach, with later accrual where a warranty explicitly extends to future performance.
Cases against an opted-in manufacturer follow a compressed schedule. Under Cal. Code Civ. Proc. § 871.26, all parties exchange initial disclosures and documents within 60 days after the answer is filed, without waiting for a discovery request. Initial depositions of two hours each are available within 120 days of the answer. Mediation must be scheduled within 90 days of the answer and held within 150 days, with all other discovery stayed until mediation concludes. Section 871.26(j) imposes sanctions of $1,500 against a plaintiff’s attorney or $2,500 against a defense attorney for missing the disclosure or deposition requirements, and the section does not apply to a party without counsel.
Complaint routes exist alongside the private claim and do different work. A California attorney general complaint does not produce an individual refund, but it feeds the state’s enforcement record on a manufacturer’s pattern of conduct.
Frequently asked questions
Does the lemon law process require a lawyer?
No. State-certified arbitration is designed for consumers appearing without counsel, and the Arbitration Certification Program describes it as free with no need to hire an attorney. In court, Cal. Civ. Code § 1794(d) shifts a prevailing buyer’s attorney’s fees to the manufacturer, which is why representation is common on the litigation track. The early-disclosure and deposition rules of Code of Civil Procedure section 871.26 do not apply to a party who is not represented by counsel.
What if the 18-month, 18,000-mile window has already passed?
The claim survives; the shortcut does not. The window in Cal. Civ. Code § 1793.22(b) governs only the presumption that a reasonable number of repair attempts occurred. Outside it, whether the attempts were reasonable is decided on the evidence, and the repairs still have to fall within the original warranty period.
Can the manufacturer insist on giving a replacement car instead of money?
No. Cal. Civ. Code § 1793.2(d)(2) states that the buyer is free to elect restitution in lieu of replacement and that in no event can the buyer be required to accept a replacement vehicle. A replacement must be substantially identical and carries the warranties that normally accompany a new vehicle of that kind, with the manufacturer paying sales or use tax, license fees, and registration fees on the swap.
How much does the mileage offset reduce a refund?
It depends on the miles driven before the first repair visit for the defect. Under Cal. Civ. Code § 1793.2(d)(2)(C), the price is multiplied by a fraction with 120,000 as the denominator and those pre-repair miles as the numerator. Miles driven after the vehicle was first presented for repair of that problem are not counted against the buyer.
Is a lemon law judgement the only way to get money back?
No. A manufacturer can settle at any point, and an opted-in manufacturer that offers restitution or replacement within 30 days of a written demand and completes it within 60 days blocks a civil-penalty claim under Cal. Code Civ. Proc. § 871.24(e). Certified arbitration also produces a binding remedy once the consumer accepts the decision.
Sources
- Song-Beverly Consumer Warranty Act, Cal. Civ. Code §§ 1790–1795.8
- Cal. Civ. Code § 1793.2 (repair deadline, replacement and restitution)
- Cal. Civ. Code § 1793.22 (Tanner Consumer Protection Act)
- Cal. Code Civ. Proc. § 871.24 (pre-suit notice and demand)
- California Department of Consumer Affairs: New Lemon Law Procedures under AB 1755 and SB 26
- California Department of Consumer Affairs: State-Certified Arbitration Information
- California Courts Self-Help: Start a small claims case