Last verified: February 2026
Key Points
- Primary Law: Massachusetts Lemon Law, M.G.L. Chapter 90, Section 7N1/2
- Coverage: New motor vehicles within 1 year or 15,000 miles of original delivery
- Presumption: 3+ repair attempts for same defect OR 15+ business days out of service
- Remedies: Refund or replacement at consumer’s choice
- Arbitration: State-certified arbitration through Attorney General’s Office
- Strength: Considered one of the strongest lemon laws in the nation
Quick Penalties Overview
| Violation Type | Consumer Remedy | Additional Damages |
|---|---|---|
| Failure to repair after reasonable attempts | Refund or replacement | Potential Chapter 93A claims (double or treble damages) |
| Manufacturer fails to comply with arbitration | Court enforcement | Attorney fees and costs; additional penalties |
| Willful violation | Enhanced damages | Chapter 93A provides for multiple damages |
Table of Contents
📑 Table of Contents (click to expand)
- Massachusetts Lemon Law Overview
- What Vehicles Are Covered
- Massachusetts Lemon Law Presumption
- Consumer Remedies: Refund vs. Replacement
- State-Certified Arbitration Process
- Chapter 93A Consumer Protection Claims
- Manufacturer Defenses
- Used Vehicle Protections
- Electric Vehicle Considerations
- Statute of Limitations
- Frequently Asked Questions
- Resources and Legal Help
Massachusetts Lemon Law Overview
Massachusetts has one of the strongest lemon laws in the United States. Codified in M.G.L. Chapter 90, Section 7N1/2, the Massachusetts lemon law provides robust protections for consumers who purchase or lease new motor vehicles that turn out to be defective.
The Massachusetts lemon law is notable for several consumer-friendly features. It uses a relatively short coverage period of one year or 15,000 miles, but pairs this with a low threshold of only three repair attempts or 15 business days out of service to trigger the presumption. The law also integrates seamlessly with Massachusetts’ powerful consumer protection statute, Chapter 93A, which can provide for double or treble damages in cases of willful violations.
The Massachusetts Attorney General’s Office administers a state-certified arbitration program that provides consumers with a free, relatively quick method to resolve lemon law disputes. Arbitration decisions are binding on manufacturers if accepted by consumers, and manufacturers who fail to comply with arbitration decisions face significant penalties.
Perhaps most importantly, Massachusetts courts have consistently interpreted the lemon law in favor of consumers. The Supreme Judicial Court has held that the law should be liberally construed to accomplish its remedial purpose of protecting consumers from defective vehicles.
What Vehicles Are Covered
Massachusetts’ lemon law covers new motor vehicles purchased or leased for personal, family, or household purposes. The law applies broadly but has specific exclusions.
Covered Vehicle Types
- Passenger automobiles: Cars, sedans, coupes, convertibles, and hatchbacks
- Trucks: Pickup trucks and other light-duty trucks
- SUVs and crossovers: Sport utility vehicles and crossover vehicles
- Vans and minivans: Including passenger vans
- Motorcycles: Covered under the lemon law
- Leased vehicles: Vehicles leased for personal use
Vehicles Not Covered
- Vehicles purchased primarily for business, commercial, or agricultural purposes
- Off-road vehicles and vehicles not designed for highway use
- Motor homes (the living quarters portion; chassis may have separate coverage)
- Vehicles with a gross vehicle weight rating over 10,000 pounds
- Boats and other watercraft
The key requirement is that the vehicle must be purchased or leased primarily for personal, family, or household use. Business vehicles are generally not covered, even if they are the same make and model as covered consumer vehicles.
Massachusetts Lemon Law Presumption
Massachusetts law creates a presumption that a vehicle is a lemon if certain conditions are met within the first year of ownership or 15,000 miles, whichever occurs first. This presumption is more favorable to consumers than many other states.
The Lemon Law Presumption Applies When:
| Condition | Requirement | Details |
|---|---|---|
| Repair Attempts (Same Problem) | 3 or more attempts | Same defect that substantially impairs use, market value, or safety |
| Days Out of Service | 15 or more business days | Cumulative total for repair of any covered defects |
| Timeframe | Within 1 year or 15,000 miles | Whichever comes first from date of original delivery |
Business Days: Massachusetts uses business days rather than calendar days, which is more favorable to consumers. Weekends and holidays when the dealer is closed do not count against the 15-day threshold.
What Qualifies as a Substantial Defect?
The defect must “substantially impair” the use, market value, or safety of the vehicle. Courts in Massachusetts have broadly interpreted this requirement. Examples include:
- Engine failures, stalling, or loss of power
- Transmission problems affecting drivability
- Brake system malfunctions
- Steering defects creating safety hazards
- Electrical system failures affecting critical components
- Persistent water leaks causing interior damage
- Air conditioning or heating failures in extreme conditions
- Safety system malfunctions (airbags, ABS, stability control)
Minor cosmetic defects typically do not qualify unless they significantly affect the vehicle’s market value.
Consumer Remedies: Refund vs. Replacement
When a vehicle qualifies as a lemon under Massachusetts law, the consumer has the right to choose between two remedies.
Option 1: Vehicle Buyback (Refund)
The manufacturer must refund:
- Full contract price: The total amount paid for the vehicle
- Collateral charges: Including sales tax, registration fees, and similar charges
- Finance charges: Interest and fees paid on vehicle financing
- Incidental damages: Reasonable expenses for towing, rental cars, and similar costs
Usage Deduction: The manufacturer may deduct a reasonable allowance for the consumer’s use of the vehicle. This is typically calculated based on the miles driven before the first repair attempt for the defect, using a formula that divides the purchase price by a set number of miles (typically 100,000 or 120,000).
Option 2: Replacement Vehicle
Instead of a refund, the consumer may elect to receive a replacement vehicle that is:
- Identical or reasonably equivalent to the original vehicle
- Acceptable to the consumer
- Accompanied by all applicable express and implied warranties
The manufacturer cannot require the consumer to accept a replacement and cannot force a settlement that waives the consumer’s statutory rights.
Leased Vehicles
For leased vehicles, the remedy includes refund of all lease payments made, the security deposit, and termination of the lease without further obligation. Early termination penalties cannot be charged to the consumer.
State-Certified Arbitration Process
Massachusetts has a state-certified arbitration program administered by the Office of the Attorney General. This program provides a free, efficient method for consumers to resolve lemon law disputes.
Benefits of State-Certified Arbitration
- Free to consumers: No filing fees for state-certified arbitration
- Fast resolution: Decisions typically issued within 45 days of filing
- Informal process: No attorney required, though consumers may bring one
- Binding on manufacturer: If consumer accepts, manufacturer must comply
- Consumer choice: Consumers can reject arbitration decisions and pursue court claims
How to File for Arbitration
- Gather documentation: Collect all repair orders, correspondence, and records
- File application: Submit application to the Attorney General’s Office
- Manufacturer notification: The arbitration program notifies the manufacturer
- Hearing scheduled: A hearing is scheduled, typically within 40 days
- Present case: Both parties present evidence and arguments
- Decision issued: Arbitrator issues written decision
Manufacturer Compliance
If the consumer accepts a favorable arbitration decision, the manufacturer must comply within a specified timeframe (typically 30 days). Failure to comply can result in court enforcement and additional penalties.
Chapter 93A Consumer Protection Claims
Massachusetts’ lemon law works in conjunction with the state’s powerful consumer protection statute, M.G.L. Chapter 93A. Violations of the lemon law may also constitute unfair or deceptive practices under Chapter 93A.
Chapter 93A Advantages
- Multiple damages: Double or treble damages for willful or knowing violations
- Attorney fees: Prevailing consumers recover reasonable attorney fees and costs
- Broader scope: Can address conduct beyond the narrow lemon law requirements
- Demand letter requirement: Must send 30-day demand letter before filing suit
When to Pursue Chapter 93A Claims
Consider pursuing Chapter 93A claims when:
- The manufacturer has willfully refused to comply with the lemon law
- The dealer engaged in deceptive practices during the sale
- The manufacturer’s conduct was particularly egregious
- You want to recover attorney fees in addition to lemon law remedies
Manufacturer Defenses
Manufacturers may raise several defenses to avoid lemon law liability, though Massachusetts courts interpret these defenses narrowly.
Valid Manufacturer Defenses
| Defense | Manufacturer’s Argument | Consumer’s Counter |
|---|---|---|
| Lack of substantial impairment | Defect is minor and does not substantially impair use, value, or safety | Document how defect affects daily use, safety concerns, or resale value |
| Consumer abuse or neglect | Defect caused by consumer’s misuse of the vehicle | Provide maintenance records showing proper care |
| Unauthorized modifications | Aftermarket parts or alterations caused the defect | Show defect existed before modifications or is unrelated |
| Insufficient repair attempts | Consumer did not allow reasonable number of attempts | Document all repair attempts and time out of service |
The burden of proving these defenses rests with the manufacturer. Massachusetts courts have generally been skeptical of manufacturer claims that defects are not substantial or that consumers caused their own problems.
Used Vehicle Protections
While Massachusetts’ lemon law applies primarily to new vehicles, used vehicle buyers have significant protections under other laws.
Used Vehicle Warranty Law
Massachusetts has a separate used car warranty law (M.G.L. Chapter 90, Section 7N1/4) that requires dealers to provide warranties on used vehicles based on mileage:
| Mileage at Sale | Required Warranty |
|---|---|
| Under 40,000 miles | 90 days or 3,750 miles, whichever comes first |
| 40,000 to 79,999 miles | 60 days or 2,500 miles, whichever comes first |
| 80,000 to 124,999 miles | 30 days or 1,250 miles, whichever comes first |
| 125,000 miles or more | No warranty required |
This warranty covers the same types of defects as the new car lemon law and provides similar remedies if the dealer cannot repair the vehicle within the warranty period.
Electric Vehicle Considerations
Electric vehicles (EVs) are covered under Massachusetts’ lemon law just like conventional vehicles. However, EVs present unique considerations.
Common EV Defects That May Qualify
- Battery degradation beyond normal parameters
- Charging system failures (onboard charger, charge port issues)
- Range significantly below manufacturer specifications
- Electric motor or drivetrain malfunctions
- Thermal management system failures
- Software glitches affecting vehicle operation or safety
- Regenerative braking system problems
- Display or infotainment system failures affecting critical functions
EV-Specific Challenges
- Software updates: Manufacturers may argue over-the-air updates resolved issues
- Battery warranty: Separate battery warranties may complicate coverage
- Limited dealer expertise: Some dealers may lack EV-specific training
- Documentation: Software issues may require specialized diagnostic records
Statute of Limitations
Understanding the time limits for filing a Massachusetts lemon law claim is critical.
Key Deadlines
- Lemon law coverage: 1 year or 15,000 miles from original delivery
- Arbitration filing: Should be initiated during or shortly after the coverage period
- Court action: General contract statute of limitations applies (6 years)
- Chapter 93A claims: 4-year statute of limitations
Preserving Your Rights
To protect your rights, you should:
- Report defects promptly and in writing during the coverage period
- Keep copies of all repair orders and correspondence
- Document the number of days your vehicle was out of service
- Consider filing for arbitration before the coverage period expires
Frequently Asked Questions
How many repair attempts does Massachusetts require?
Massachusetts requires only three repair attempts for the same defect, or 15 business days out of service for any repairs, within the first year or 15,000 miles. This is a lower threshold than many other states, making Massachusetts’ law more consumer-friendly.
Do I need a lawyer to pursue a Massachusetts lemon law claim?
No, you can pursue a claim through state-certified arbitration without an attorney. However, if you also want to pursue Chapter 93A claims for additional damages, or if your case goes to court, having an attorney can significantly improve your outcome. Many lemon law attorneys work on contingency because prevailing plaintiffs can recover attorney fees under Chapter 93A.
What is the difference between business days and calendar days?
Massachusetts uses business days, which generally means Monday through Friday when the dealer’s service department is open. Weekends and holidays do not count. So 15 business days is approximately three weeks of calendar time, which is more favorable to consumers than states using calendar days.
Can I reject a replacement vehicle and demand a refund instead?
Yes. Under Massachusetts law, the choice between a refund and replacement is the consumer’s, not the manufacturer’s. You can reject any offered replacement and insist on a full refund of your purchase price and associated costs.
Does Massachusetts have a used car lemon law?
Massachusetts has a separate used vehicle warranty law that requires dealers to provide warranties based on mileage at the time of sale. While not technically a “lemon law,” it provides similar protections for used car buyers and allows for refunds if the dealer cannot repair covered defects.
What is Chapter 93A and how does it help me?
Chapter 93A is Massachusetts’ consumer protection statute that prohibits unfair and deceptive practices. Lemon law violations can also be Chapter 93A violations. The advantage is that Chapter 93A allows for double or treble damages if the violation was willful, plus mandatory attorney fees for prevailing consumers. You must send a 30-day demand letter before filing a Chapter 93A lawsuit.
What happens if the manufacturer ignores an arbitration decision?
If a manufacturer fails to comply with an arbitration decision that the consumer has accepted, the consumer can seek court enforcement. The court can order compliance and impose additional penalties. Manufacturer non-compliance may also support a Chapter 93A claim for willful violation.
Resources and Legal Help
Official Resources
- Massachusetts Lemon Law Statute (M.G.L. c. 90, § 7N1/2)
- Massachusetts Attorney General’s Office
- Massachusetts Lemon Law Guide
- Chapter 93A Consumer Protection Law