Massachusetts Lemon Law
Massachusetts New Car Lemon Law (with separate Used Vehicle Warranty Law) (M.G.L. c. 90, § 7N1/2 (new vehicles); M.G.L. c. 90, § 7N1/4 (used vehicles)). If your new or used vehicle has a substantial defect the dealer can't fix, you may be entitled to a refund, replacement, or cash settlement. The manufacturer pays the legal fees — you pay nothing out of pocket.
What's distinctive
How Massachusetts's lemon law is different
Massachusetts is the only state with a true used-car lemon law (§ 7N1/4) that requires dealers themselves – not just manufacturers – to provide a tiered warranty and refund a defective used vehicle after three repair attempts or 10 business days out of service. Combined with M.G.L. c. 93A's mandatory double-to-triple damages for willful violations, Massachusetts has arguably the most powerful consumer-vehicle remedies in the country. Arbitration applications for new cars must be filed within 18 months of delivery; used-car claims have a two-year limitations period.
Used vehicles
Massachusetts has a separate, nationally unique Used Vehicle Warranty Law at M.G.L. c. 90, § 7N1/4 that requires dealers to provide express warranties on used cars sold for $700+ with under 125,000 miles. Tiered warranty: under 40,000 miles = 90 days/3,750 miles; 40,000-79,999 = 60 days/2,500 miles; 80,000-124,999 = 30 days/1,250 miles. Three repair attempts or 10 business days out of service triggers a refund.
Leased vehicles
Leased new vehicles are covered under § 7N1/2 (lessees defined as consumers); leased used vehicles fall under separate consumer protection rules.
Mileage offset on a refund
For new vehicles under § 7N1/2, the use allowance equals the contract price multiplied by miles driven divided by 100,000 (or divided by 25,000 for motorcycles). For used vehicles under § 7N1/4, the dealer deducts $0.15 per mile driven between sale and repurchase.
Arbitration requirement
Massachusetts runs a state-certified arbitration program through the Office of Consumer Affairs and Business Regulation (OCABR) for both new and used vehicles. Consumers can use the state program even after going through a manufacturer-sponsored program. Decisions issue within 45 days.
Civil penalty / extra damages
Lemon-law violations are unfair and deceptive trade practices under M.G.L. c. 93A, which allows the court to award up to triple actual damages (with a minimum of double damages) plus attorney's fees if the violation was willful or knowing or if the manufacturer refused a reasonable settlement offer in bad faith.
Areas served in Massachusetts
- Boston
- Worcester
- Springfield
- Cambridge
- Lowell
State consumer-protection resource
Massachusetts Office of Consumer Affairs and Business Regulation (OCABR)
https://www.mass.gov/orgs/office-of-consumer-affairs-and-business-regulation →Common questions
Massachusetts lemon law, in plain English
Does Massachusetts's lemon law cover me?
Massachusetts has TWO lemon laws. The New Car Lemon Law (M.G.L. c. 90, § 7N1/2) covers new motor vehicles bought or leased in Massachusetts for personal/family/household use, with coverage running one year or 15,000 miles from delivery. The Used Vehicle Warranty Law (M.G.L. c. 90, § 7N1/4) covers used vehicles sold by dealers for at least $700 with fewer than 125,000 miles at the time of sale, with warranty length tiered by mileage at sale. Both laws cover passenger cars, light trucks, and motorcycles; both exclude vehicles used primarily for business and off-road vehicles.
How many repair attempts before I can file in Massachusetts?
For new vehicles under § 7N1/2, three repair attempts for the same defect or 15 business days out of service for any combination of warranty defects within the 1-year / 15,000-mile term of protection triggers the lemon-law remedy. After hitting either threshold, you must give the manufacturer a final 7-business-day repair opportunity by written notice. For used vehicles under § 7N1/4, three repair attempts for the same defect or 10 business days out of service during the dealer's tiered warranty period triggers the right to a refund.
Are used cars covered under Massachusetts lemon law?
Yes – Massachusetts is the only state with a true used-car lemon law. M.G.L. c. 90, § 7N1/4 requires any dealer selling a used vehicle for $700+ with under 125,000 miles to provide a written express warranty: 90 days or 3,750 miles for vehicles under 40,000 miles at sale; 60 days or 2,500 miles for 40,000-79,999 miles; 30 days or 1,250 miles for 80,000-124,999 miles. If the dealer can't repair a substantial defect after three attempts or 10 business days out of service, you are entitled to a full refund (less $0.15 per mile driven). Private (non-dealer) sales have a separate, narrower 30-day warranty.
Are leased vehicles covered in Massachusetts?
Yes – the New Car Lemon Law expressly defines lessees as consumers, so leased new vehicles get the same 1-year / 15,000-mile rights window and the same refund or replacement remedy. If a replacement is provided, an identical model must be supplied for the remainder of the original lease term. The manufacturer pays the lessor for the residual and refunds the lessee's down payment and lease payments, less the contract-price-times-miles-divided-by-100,000 use allowance. Lessees are released from any further obligation under the original lease.
How long do I have to file a lemon law claim in Massachusetts?
For new vehicles, you must apply for state arbitration within 18 months of original delivery – this is the deadline that requires the manufacturer's mandatory participation. For used vehicles under § 7N1/4, civil actions must be filed within two years of the original delivery date. Pure c. 93A unfair-practices claims carry a four-year statute of limitations. The state arbitration program issues decisions within 45 days of accepting an application, and you can use it even if you previously tried a manufacturer-run program.
Do I have to go through arbitration in Massachusetts before suing?
Massachusetts offers a state-certified arbitration program through the Office of Consumer Affairs and Business Regulation (OCABR), and manufacturers are required to participate in new-car cases if you apply within 18 months of delivery. The state program is 'all or nothing' – the arbitrator either grants the full lemon-law remedy or denies it. Unlike most states, Massachusetts lets you use the state program even after going through a manufacturer-sponsored arbitration. Used-car cases also have a separate state arbitration track. You may also bypass arbitration and sue directly under c. 93A.
What's the difference between the Massachusetts statute and federal Magnuson-Moss?
Massachusetts gives you the strongest consumer remedies in the country by combining the lemon laws with M.G.L. c. 93A. A lemon-law violation is per se unfair and deceptive under c. 93A, and if the violation was willful or knowing – or the manufacturer refused a reasonable settlement offer in bad faith – the court must award double to triple actual damages, plus reasonable attorney's fees and costs. Magnuson-Moss is a broader federal warranty statute with attorney's fees too, but it lacks Massachusetts's automatic damages multiplier and does not require the manufacturer to participate in a free state arbitration program. Most Massachusetts cases plead all three.
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