The Short Answer
The Massachusetts Lemon Law, in Brief
Yes, Massachusetts has a lemon law. If you bought or leased a new vehicle in Massachusetts and a warranty defect survives three repair attempts, or keeps the vehicle off the road for fifteen business days, the manufacturer has to buy it back or replace it, and you can refuse a replacement and insist on the money. The claim goes to a state-certified arbitrator appointed by the Office of Consumer Affairs and Business Regulation, and no manufacturer can make you jump through its own program first.
The statute is the Massachusetts New Car Lemon Law, M.G.L. c. 90 section 7N½, and the Office of Consumer Affairs and Business Regulation administers the arbitration program from 1 Federal Street in Boston under 201 CMR 11.00. The notice step here works differently from most states, and getting it wrong is what sinks claims. Section 7N½(5) stops a manufacturer requiring you to notify it of a defect before you go to state arbitration, so there is no Georgia-style mandatory notice form. What the manufacturer does have is a statutory right to one final repair attempt of no more than seven business days, and the regulation that governs the arbitration application asks you to certify you gave it that chance. So you do write to the manufacturer, and OCABR tells you to send it to the regional office by certified mail, but you are doing it to open the manufacturer's last window, not because anyone can make you ask permission first. That letter can still go out after the term of protection has already closed, which catches people out in the other direction.
Two clocks run in Massachusetts, both shorter than drivers expect, and they are the reason to move early. The term of protectionSection 7N½(1): "one year or fifteen thousand miles of use from the date of original delivery of a new motor vehicle, whichever comes first." It is the window the defect has to appear in and the window the repair attempts have to fall inside. A replacement vehicle gets a fresh one-year, 15,000-mile term of its own running from the date it is delivered to you. is one year or 15,000 miles from delivery, whichever comes first, which is half of what Georgia allows. Every repair attempt you want counted has to fall inside it. Separately, section 7N½(6) compels the manufacturer to arbitrate only if you ask within eighteen months of delivery. Miss that and the state program closes; the chapter 93A route stays open, but you have lost the cheap, fast mechanism the legislature built for exactly this.
The law reaches new cars, trucks and vans bought, leased or replaced by a dealer or manufacturer, and a lease counts if it runs at least a year. It reaches motorcycles too, and the statute proves it by giving motorcycles their own offset denominator. It does not reach auto homes, vehicles built primarily for off-road use, or any vehicle used primarily for business. That is the whole list of carve-outs in section 7N½(1), which takes its definition of a motor vehicle from c. 90 section 1, and there is no weight limit in it anywhere. A used vehicle is not covered by section 7N½, but Massachusetts has two more statutes, and between them they are the part of Massachusetts law most people have never heard of.
The Used Vehicle Warranty Law, M.G.L. c. 90 section 7N¼, puts a statutory warranty on almost every used car a dealer sells here, and the warranty is owed by the dealer, not the manufacturer. How long it runs depends on the odometer at sale: 90 days or 3,750 miles under 40,000 miles, 60 days or 2,500 miles up to 80,000, and 30 days or 1,250 miles up to 125,000. At 125,000 miles or above there is no statutory warranty. Three failed repairs of the same defect, or more than ten business days out of service, and the dealer has to buy the car back at fifteen cents a mile.
The third one is the Lemon Aid Law, M.G.L. c. 90 section 7N, and it is the shortest and bluntest of the three. If a vehicle fails the Massachusetts safety inspection within seven days of the sale, and the repairs needed to pass would cost more than ten per cent of the purchase price, you can void the sale outright and get your money back, provided you notify the seller and return the vehicle within fourteen days, with the inspection station's written reasons and an estimate. It applies to new and used vehicles alike, it has no price floor and no mileage ceiling, and unlike the other two it reaches private-party sales. It covers only a vehicle bought for your own immediate personal or family use.
Where none of the three reaches, two things still do. The federal Magnuson-Moss Warranty Act has no mileage cap, no price floor and no vehicle-type exclusions, and it lets a consumer who finally prevails recover attorney fees. And the implied warranty of merchantability applies in Massachusetts even to a car sold under $700 or with more than 125,000 miles on it, which is why selling a car here "as is," "with all faults" or on a "50/50 warranty" is illegal.
Which of those routes fits your vehicle is the first real decision in a Massachusetts claim, and the answer turns on the odometer and the date rather than on how bad the defect is. Our guide to how to file a lemon law claim sets out the paperwork order, and the lemon law glossary explains the vocabulary.