Connecticut Lemon Law: Presumption, Refunds, and Arbitration

The Connecticut lemon law gives buyers and lessees of new motor vehicles a path to a full refund or a replacement when the manufacturer cannot fix a serious defect after a reasonable number of tries. It covers defects that appear within the first two years of ownership or 24,000 miles, whichever comes first, and disputes run through a state-administered arbitration program.¹ Manufacturers that ignore an award face daily fines.

Who and What the Law Covers

Chapter 743b of the General Statutes applies to passenger cars, motorcycles, and combination vehicles (those used for both personal and commercial purposes) sold or leased in Connecticut.² The vehicle must be new and still within the manufacturer’s original warranty period. Used cars are handled under a different statute, discussed near the end of this article.

Both buyers and lessees are protected, whether you financed, paid cash, or signed a long-term lease. The coverage window starts on the date the vehicle was first delivered to the original consumer, so the clock begins the day you drive off the lot.¹

When a Vehicle Is Presumed a Lemon

A defect isn’t enough on its own. It has to substantially impair the vehicle’s use, safety, or value, and the manufacturer has to fail at fixing it after a reasonable number of attempts.² Connecticut creates a legal presumption that the vehicle qualifies if, during the two-year or 24,000-mile window, any of these things happens:

The manufacturer, its agent, or an authorized dealer has attempted to repair the same defect at least four times and it still isn’t fixed.³
The defect could cause death or serious bodily injury when the vehicle is driven, and there have been at least two repair attempts. This lower threshold applies only during the first year of ownership or the express warranty term, whichever ends first.⁴
The vehicle has been out of service for repair for a total of 30 or more calendar days. The days do not have to be consecutive.³

You may still qualify without hitting four attempts if the number already made was reasonable given the nature of the defect.³ What you cannot do is file without giving the manufacturer or an authorized dealer at least one shot at the repair, or a documented refusal to try.⁴

What a Refund Actually Includes

If the arbitrator rules in your favor, the manufacturer must either replace the vehicle with a comparable new one you find acceptable or refund what you paid. The refund covers more than the sticker price:

The full contract price, including dealer preparation charges, undercoating, transportation fees, and installed options.²
Collateral charges such as sales tax and license and registration fees.²
Finance charges accrued after you first reported the defect and during periods the vehicle was out of service. The Attorney General’s office has read the statute to allow recovery of all earned finance charges in some cases.⁴
Incidental damages: towing charges, rental car expenses, and lodging when a breakdown left you stranded.⁴

If the vehicle is financed, the manufacturer pays off the loan and distributes the refund between you and the lienholder based on each party’s interest.²

The Mileage Deduction

The refund isn’t dollar for dollar. The manufacturer gets to subtract a reasonable allowance for the use you got out of the vehicle. The formula: divide the odometer reading at the time the manufacturer accepts the return by 120,000, then multiply by the total contract price.² On a $36,000 vehicle with 12,000 miles at return, the deduction comes to $3,600. Report the defect early and this number stays small.

Notifying the Manufacturer

Before you can file for arbitration, the manufacturer needs to know there’s a problem. Your owner’s manual or warranty booklet lists the office that handles complaints, along with any written-notice requirement.¹ Not every manufacturer requires written notice, but if yours does, you must send it or your claim stops there.⁴

A common misconception: the statute itself does not universally demand certified mail or a letter to a specific regional office. Those requirements, when they exist, come from the individual warranty. Read your manual. If it says nothing about written notice, reporting the problem to an authorized dealer is enough.

Filing Arbitration With the Department of Consumer Protection

Once the manufacturer has had its chance and the defect persists, you file with the Department of Consumer Protection’s Lemon Law Arbitration Program. You can reach the program at (860) 713-6120 or (800) 538-CARS (2277).⁵ There is a filing fee, which is returned if the Department determines you are not eligible.

Documentation is the case. Before you file, gather:

Every repair order and service receipt from the dealership
A chronological log of each repair visit with dates and odometer readings
Written descriptions of the symptoms you reported and what the technician found
A count of total days the vehicle was unavailable due to repairs
Copies of written correspondence with the manufacturer
Your vehicle identification number and the dealership’s name and address

The Department screens the application to confirm the vehicle falls within the two-year or 24,000-mile window. If it passes, the case moves to a hearing before an independent arbitrator, where you present your repair history and the manufacturer’s representative responds. The arbitrator issues a written decision, and a favorable ruling typically means either a replacement with a comparable new vehicle or a refund calculated using the components and mileage formula above.⁶

After the Award: Deadlines and Fines

The manufacturer generally has 30 days after receiving notice of your acceptance to deliver a replacement or issue the full refund, including collateral charges and incidental damages.⁷ Each day of willful noncompliance counts as a separate violation. A 2021 amendment gives the Department authority to levy fines of up to $1,000 per day against manufacturers that miss the deadline.⁸

Can You Appeal?

For consumers, the arbitration decision is final in most cases. Court appeals are limited to very narrow circumstances.⁹ That cuts both ways. You avoid the cost and delay of litigation, but you also lose the ability to try again if the arbitrator rules against you. If you think arbitration won’t serve your interests, consider filing a court action instead, because accepting arbitration generally forecloses that option.

If You Bought a Used Car

Chapter 743b applies only to new vehicles. Used cars purchased from a dealer are covered by Chapter 743f, which sets minimum warranty periods that scale with price:¹⁰

Purchase price of $3,000 to under $5,000: at least 30 days or 1,500 miles, whichever ends first, with full parts and labor coverage.
Purchase price of $5,000 or more: at least 60 days or 3,000 miles, whichever ends first.

The warranty period pauses any time the vehicle is at the dealer for covered repairs, so shop time doesn’t eat into your coverage. Dealers cannot disclaim implied warranties on used vehicles that cost $3,000 or more, and they must disclose whether the vehicle was previously declared a total loss.¹⁰ You also have the right to have the vehicle independently inspected before you buy.

Federal Backup Under Magnuson-Moss

If your situation falls outside Connecticut’s lemon law, perhaps because the eligibility window has closed or the arbitrator ruled against you, the federal Magnuson-Moss Warranty Act is a separate avenue. It allows any consumer damaged by a manufacturer’s failure to honor a written or implied warranty to sue in state or federal court.¹¹

The advantage is fee-shifting. If you win, the court can order the manufacturer to pay your attorney’s fees and court costs based on the actual time your lawyer spent on the case. That makes hiring a lawyer viable even when the claim itself is modest. One catch: to file in federal court, the amount in controversy must be at least $50,000, excluding interest and costs.¹¹ Below that, state court is where the case goes.

1
State of Connecticut. Lemon Law for the Consumer
2
Connecticut General Assembly. Connecticut Code 42-179 – New Motor Vehicle Warranties
3
Department of Consumer Protection. Connecticut Lemon Law Information Sheet
4
BBB National Programs. Connecticut Lemon Law Summary
5
State of Connecticut. Lemon Law Application Process
6
Department of Consumer Protection. My Vehicle Meets the Definition of a Lemon and My Case Has Been Accepted for Arbitration
7
Connecticut General Assembly. Connecticut Code Chapter 743b – New Automobile Warranties
8
State of Connecticut. Jaguar Land Rover to Pay 26500 for Lemon Law Violation
9
Department of Consumer Protection. Questions Frequently Asked About the Lemon Law Program
10
Connecticut General Assembly. Connecticut Code Chapter 743f – Used Automobile Warranties
11
Office of the Law Revision Counsel. 15 USC 2310 – Remedies in Consumer Disputes