Magnuson Moss Warranty Act & Federal Lemon Law

If your vehicle keeps going back to the shop for the same problem or spends weeks out of service, you are not stuck shouldering the cost and stress alone. Federal and California laws work together to hold manufacturers to their promises and to make you whole when a warranty-backed product, including a car or truck, does not perform as it should.

This guide explains the Magnuson Moss Warranty Act, often called the federal warranty law, how it applies to vehicles, and how it interacts with California’s lemon law. We will use plain English, real examples, and specific thresholds so you can see where you stand and what to do next.

The Magnuson Moss Warranty Act in plain English

The Magnuson Moss Warranty Act is a federal law that protects consumers when a warrantied product does not live up to its written or implied warranty. It applies to cars, trucks, motorcycles, RVs, boats, and other consumer products. You will see it cited as 15 U.S.C. §§ 2301-2312.

Key points:

• It makes manufacturers and sellers put warranty terms in clear, easy-to-read language. See 15 U.S.C. § 2302.
• It defines “full” and “limited” warranties and sets minimum standards for a full warranty. See 15 U.S.C. § 2303 and § 2304.
• It limits the ability to disclaim implied warranties when a written warranty is offered. See 15 U.S.C. § 2308.
• It gives you the right to sue for breach of warranty and to recover your reasonable attorney’s fees if you win. See 15 U.S.C. § 2310(d)(1)-(2).
• If a manufacturer requires you to use an informal dispute program before suing, that program must meet Federal Trade Commission rules. See 15 U.S.C. § 2310(a)(3) and 16 C.F.R. Part 703.

A warranty is a promise about a product’s condition or performance. Written warranties are the ones you see in your owner’s manual or purchase documents, such as a 3-year/36,000-mile bumper-to-bumper warranty. Implied warranties are automatic, like the implied warranty of merchantability, which means the product is fit for ordinary use.

Does Magnuson Moss create a “federal lemon law”?

There is no single federal statute that functions exactly like a state lemon law for vehicles. Magnuson Moss does not use phrases like “reasonable number of repair attempts” or “buyback” the way state lemon laws do. Instead, it gives you a federal remedy for breach of warranty across all consumer products. Courts use your state’s warranty and consumer law rules to flesh out what counts as a breach and what remedies apply.

In practice, vehicle owners often bring Magnuson Moss claims alongside California’s Song-Beverly Consumer Warranty Act. The federal law adds a fee-shifting provision and nationwide standards for disclosures. The state law adds specific vehicle-focused remedies and presumptions.

How Magnuson Moss helps vehicle owners

If your vehicle has a defect covered by a written warranty, and the manufacturer or its authorized dealer does not fix it within a reasonable number of attempts or a reasonable time, you can bring a Magnuson Moss claim for breach of warranty. You can also use it if the manufacturer wrongly limits or refuses to honor an implied warranty where one applies.

Common vehicle problems that lead to Magnuson Moss claims:

• Engine stalling, misfires, or power loss
• Transmission slipping, hard shifts, or failure to engage
• Electrical issues like repeated battery drain, infotainment crashes, or shorts
• Brake or steering problems
• Repeated check engine lights with the same underlying fault code
• Safety system failures like airbag SRS warnings or ADAS faults

What you can recover under Magnuson Moss:

• Money damages for the manufacturer’s breach of warranty, which often track your state lemon law remedies
• Incidental and consequential damages tied to the breach where state law allows
• Reasonable attorney’s fees and costs if you prevail, per 15 U.S.C. § 2310(d)(2)

Many vehicle warranties mention an “informal dispute settlement mechanism,” such as BBB Auto Line. If the warranty requires you to use such a program, you generally must try it first, but only if the program complies with federal standards. See 15 U.S.C. § 2310(a) and 16 C.F.R. Part 703. You are not required to accept any resolution you believe is unfair, and you can still go to court if the problem is not resolved.

California’s lemon law and how it fits: Song-Beverly and Tanner Acts

California has one of the strongest lemon laws in the country: the Song-Beverly Consumer Warranty Act, Cal. Civ. Code §§ 1790-1795.8. For new motor vehicles, the Tanner Consumer Protection Act sets rebuttable presumptions that help prove your case, Cal. Civ. Code § 1793.22.

Plain-English overview:

• The manufacturer must repurchase or replace a new motor vehicle if it cannot repair a substantial defect that is covered by the warranty after a reasonable number of attempts. See Cal. Civ. Code § 1793.2(d).
• “Substantial” means the defect impairs the vehicle’s use, value, or safety.
• The Tanner Act presumption applies during the first 18 months or 18,000 miles, whichever occurs first, and presumes a reasonable number of attempts if:
  • The dealer made 4 or more repair attempts for the same defect, or
  • The dealer made 2 or more repair attempts for a defect that is likely to cause death or serious bodily injury if the vehicle is driven, or
  • The vehicle was out of service for repair for a total of 30 or more cumulative days. Cal. Civ. Code § 1793.22(b).
• If the presumption applies, the burden shifts to the manufacturer to prove the vehicle is not a lemon. You can still win a case even if the presumption does not apply, as long as the defect is covered and the repair opportunity was reasonable.

Repurchase or “buyback” under California law means the manufacturer must refund:

• Your down payment and all monthly payments
• Registration fees, taxes, and other official charges
• Incidental damages, like towing and rental cars reasonably incurred
• Minus a usage deduction based on the mileage at the first repair attempt for the defect. See Cal. Civ. Code § 1793.2(d)(2).

If the manufacturer willfully fails to comply, California allows a civil penalty up to two times your actual damages. See Cal. Civ. Code § 1794(c). California also has a fee-shifting rule, so if you win, the manufacturer must pay your reasonable attorney’s fees and costs. See Cal. Civ. Code § 1794(d).

New, used, and “certified” vehicles

• New vehicles: Full Song-Beverly and Tanner Act protections apply.
• Used vehicles: You still have protections if there is a remaining manufacturer’s warranty or a dealer warranty. Song-Beverly covers consumer goods with written warranties and implied warranties sold at retail in California, and Magnuson Moss applies to written warranties on consumer products. Many used vehicle cases proceed under both laws if a written warranty exists.
• Certified pre-owned: These typically carry manufacturer-backed warranties, which bring both Song-Beverly and Magnuson Moss into play.

Magnuson Moss vs. California lemon law: how they work together

• Scope: Magnuson Moss protects all consumer products, including vehicles, when there is a breach of a written or implied warranty. Song-Beverly focuses on goods sold in California, with specific and powerful remedies for vehicles.
• Legal standards: Magnuson Moss uses your state’s warranty standards to define breach and remedy. California’s standards are clear and consumer-friendly, which strengthens a Magnuson Moss claim brought by a California buyer.
• Remedies: California specifically provides repurchase or replacement and a civil penalty for willful violations. Magnuson Moss provides for damages and attorney’s fees and often piggybacks on the state’s remedies.
• Fees: Both laws shift your reasonable attorney’s fees to the manufacturer if you win. See 15 U.S.C. § 2310(d)(2) and Cal. Civ. Code § 1794(d).

Because of this overlap, many California cases include both Song-Beverly and Magnuson Moss claims in the same lawsuit. This dual approach protects your rights under both state and federal law.

Real-world examples with numbers

Here are worked scenarios to show how these laws apply.

Example 1: Four repair attempts for the same issue

• Facts: Your new SUV has a transmission that slips under load. You bring it in 4 separate times during the first 14 months. Each time the dealer “reprograms” the transmission control module, the problem returns within a few weeks.
• California: Under the Tanner Act presumption, 4 or more attempts for the same nonconformity in the first 18 months or 18,000 miles is a reasonable number of attempts. You can demand a repurchase or replacement under Cal. Civ. Code § 1793.2(d).
• Federal: The same facts also support a Magnuson Moss breach of written warranty claim, and you may recover fees under 15 U.S.C. § 2310(d)(2).

Example 2: Safety defect with two repair attempts

• Facts: Your sedan’s steering intermittently locks for a split second when making low-speed turns. The dealer attempts repairs twice within the first year, but the issue persists.
• California: Two attempts for a defect likely to cause death or serious bodily injury qualify for the presumption. You can request a buyback or replacement. Cal. Civ. Code § 1793.22(b).
• Federal: These facts also support a Magnuson Moss claim because the warranty repair failed to cure a serious defect within a reasonable number of attempts.

Example 3: 30 or more cumulative days out of service

• Facts: Your pickup is at the dealer for 12 days for engine faults, 9 days for a fuel pump, and 10 days while waiting for parts on a recall-related repair. Total time out of service is 31 days in the first 10 months.
• California: The Tanner Act presumption is met once you hit 30 cumulative days for warranty repairs in that 18 months or 18,000 miles window.
• Federal: The long downtime also shows a failure to repair within a reasonable time under Magnuson Moss.

Example 4: Used vehicle with a limited warranty

• Facts: You buy a certified pre-owned SUV with 20,000 miles and a 12-month/12,000-mile CPO warranty. The infotainment system and backup camera fail repeatedly. You have 3 repair visits and the dealer replaces modules, but the camera still blacks out randomly.
• California: The CPO warranty brings you within Song-Beverly’s protections. If the defect impairs use, value, or safety and a reasonable number of repair attempts fails, you have lemon law remedies.
• Federal: Magnuson Moss clearly applies because there is a written warranty on a consumer product, and you can seek attorney’s fees if you prevail.

Example 5: RV or consumer goods under federal law

• Facts: Your new motorhome has persistent electrical faults and subframe flex that the dealer cannot fix after 5 service visits.
• California: Coverage for RVs can be fact specific. Some components are treated as consumer goods, and certain chassis are covered differently. Many owners bring both Song-Beverly and Magnuson Moss claims.
• Federal: Magnuson Moss covers the warrantied consumer product. If it is not repaired within a reasonable time or attempts, you can pursue damages and fees under 15 U.S.C. § 2310(d).

What counts as a “reasonable number of attempts” or “reasonable time”?

• Attempts: California’s Tanner Act presumption gives bright lines for new vehicles, but even outside that window, courts look at the nature of the defect, safety risk, and number of visits. Three visits for the same recurring defect often support a breach. Two visits can be enough for major safety issues.
• Time: Weeks or months of downtime without a successful fix usually crosses the line, especially when parts delays or “no problem found” notes extend the outage and the issue reappears.

Reasonableness is not a rigid formula. Your repair history and the defect’s impact on use, value, or safety drive the analysis.

Common roadblocks and how to handle them

• “No codes found” or “could not duplicate”: Ask the advisor to include your descriptions and any photos or videos in the repair order. Keep your own log of symptoms with dates and mileage.
• Software updates only: If repeated updates do not resolve the problem, ask the dealer to document why no hardware replacement is appropriate and request escalation to the manufacturer’s technical assistance.
• Aftermarket parts or modifications: The manufacturer may blame modifications. Under federal law, they must show the modification actually caused the problem to deny coverage. Keep records showing issues started before any modification or are unrelated.
• Intermittent defects: Bring the vehicle in each time the issue appears and get a repair order. Patterns matter, and multiple visits build your case.

Deadlines and where to file

• Statute of limitations: Magnuson Moss uses state warranty limitation periods, commonly four years from the breach. In California, Song-Beverly actions are typically subject to a four-year limitations period, often measured from when the manufacturer failed to repair after a reasonable opportunity. Specific facts can affect timing. Act promptly.
• Informal dispute programs: If your written warranty requires an informal dispute procedure that complies with FTC rules, try that process. You can still go to court if it does not resolve the issue.
• Filing venue: Many California cases are filed in state court and include both Song-Beverly and Magnuson Moss claims. Some cases may be filed in federal court under Magnuson Moss. Your attorney will weigh strategy, forum, and timing.

Records to keep to strengthen your claim

• Purchase or lease agreement, including trade-in documents
• Warranty booklet and any extended service contracts
• All repair orders and invoices, even for “no problem found” visits
• Tow receipts, rental car receipts, rideshare expenses related to repairs
• Photos, videos, and a symptom diary with dates and mileage
• Any emails, texts, or case numbers from the manufacturer or dealer
• Registration and insurance documents

How California’s newer consumer measures fit in

California updates consumer auto protections regularly. Recent measures like AB 1755 (2024) and SB 766, known as the CARS Act, reflect an ongoing focus on fair auto sales and clear warranty information. While these are not lemon laws, they complement Song-Beverly by targeting deceptive sales practices and improving transparency in the auto marketplace. They work alongside the core statutes that govern your warranty rights: the Song-Beverly Consumer Warranty Act, the Tanner Consumer Protection Act, and the federal Magnuson Moss Warranty Act.

Note: Legislative details and effective dates can change. An attorney can confirm the current status and how any new rules may support your particular claim.

Dealer versus manufacturer: who is on the hook?

• Repairs: Authorized dealers perform warranty work on the manufacturer’s behalf. Keep all dealer records, as they are evidence of the manufacturer’s repair attempts.
• Liability: Under Song-Beverly and Magnuson Moss, the vehicle manufacturer is typically responsible for honoring warranty obligations. Dealers can be liable in specific situations, such as their own express warranties or misrepresentations during sale.
• Communication: It often helps to notify both the dealer and the manufacturer in writing when problems persist. Ask the manufacturer for a buyback or replacement if the standards are met.

Washington readers

Our practice focuses on California, but if you live in Washington, that state has its own lemon law in RCW 19.118. Magnuson Moss also applies to Washington buyers for breach of warranty claims. The process and timelines differ from California, so get Washington-specific guidance if your vehicle was bought or registered there.

FAQs

Is Magnuson Moss only for new cars?

No. Magnuson Moss covers any consumer product with a written warranty. For vehicles, it often applies to used or certified pre-owned cars if a written warranty or service contract is in place. California’s Song-Beverly law also protects used vehicles when a warranty still covers them.

Do I have to give the dealer a certain number of chances before I can ask for a buyback?

For new vehicles in California, the Tanner Act presumption uses 4 or more attempts for the same defect, 2 or more for serious safety defects, or 30 or more days out of service in the first 18 months or 18,000 miles. Even if you are outside those exact numbers or timeframes, you may still have a valid claim under Song-Beverly and Magnuson Moss if repairs were not successful within a reasonable number of attempts or time.

What if my warranty says I must use arbitration or an informal dispute program?

If your warranty requires you to use an informal dispute mechanism, it must comply with federal standards. You generally must try it before suing on a written warranty under Magnuson Moss, but you do not have to accept an unfair outcome. You can still pursue your rights in court. See 15 U.S.C. § 2310(a) and 16 C.F.R. Part 703.

Can I recover attorney’s fees?

Yes. If you prevail in a Magnuson Moss claim, the court may award your reasonable attorney’s fees and costs. See 15 U.S.C. § 2310(d)(2). California’s Song-Beverly Act also has a fee-shifting rule for prevailing buyers. See Cal. Civ. Code § 1794(d). This is one reason many lemon law firms, including ours, offer representation with no out-of-pocket fees to the consumer.

Do software recalls or parts shortages excuse the manufacturer?

Not automatically. Long delays, repeated software flashes that do not cure the defect, or extended parts backorders can still support a claim that the manufacturer did not repair within a reasonable time. Your repair orders, dates, and symptom history are key.

Your next step

If your vehicle keeps breaking down or the same defect persists after multiple repair attempts, you may have rights under both California’s Song-Beverly Act and the federal Magnuson Moss Warranty Act. LemonLaws.com can review your repair history, warranty, and timeline and explain your options in a free consultation. We handle cases with no out-of-pocket fees. If you win, the manufacturer pays your reasonable attorney’s fees under Cal. Civ. Code § 1794(d) and 15 U.S.C. § 2310(d)(2). Reach out today, and let our team work diligently to protect your rights and hold the manufacturer to its promises.