New Hampshire Lemon Law: Thresholds & Buyback

Q: What vehicles does the New Hampshire lemon law cover?

The New Hampshire lemon law protects new motor vehicles, including cars and certain trucks and motorcycles, that are still under the manufacturer's express warranty. The defect must be reported during the warranty term, and the law focuses on vehicles bought or registered in the state for personal, family, or household use.

⚡ The short answer

Strong protection, but a tight window The New Hampshire lemon law gives new-car buyers real leverage, but the clock is short. The qualifying defects and repair attempts must happen during the express warranty term or within the first year after delivery. If you cross the repair threshold in time, the manufacturer must replace the car or refund your money through a state arbitration board.

If you bought a new car in New Hampshire and it keeps going back to the shop for the same problem, this law exists for you. The hard part is documenting the failures correctly and acting before the warranty year closes. Below is how the thresholds work, what a buyback actually pays out, and the mistakes that sink otherwise valid claims.

📊 The qualifying thresholds at a glance

A vehicle becomes a "lemon" only when it meets one of the law's repair triggers for a substantial defect, meaning a problem that impairs the use, market value, or safety of the car. Cosmetic gripes do not count. Here is how the numbers break down.

Trigger	What it means	Typical threshold
Repeated repair attempts	The same substantial defect is repaired without success	3 or more attempts
Days out of service	Car is in the shop for warranty repair, cumulative across all defects	30 or more calendar days
Serious safety defect	A defect likely to cause death or serious injury	As few as 1 attempt
Coverage period	When the defect and repairs must occur	Warranty term or first year, whichever ends first

Two points trip people up. First, the 30-day count is cumulative, so a week here and 10 days there add up. Second, the safety-defect path can qualify your car after a single failed fix, which is why diagnosing a problem correctly matters so much. If you are unsure whether a recurring fault is a true safety issue, our car shakes when braking and steering wheel vibration guides can help you frame it before you talk to the dealer.

🔧 How the repair-attempt rule really works

The repair-attempt count is not just "I brought it in three times." It has to be the same substantial defect, documented each visit, and the manufacturer generally must have had a fair chance to fix it. That is why your paper trail is the case.

What counts as an attempt

A dealer or authorized service center performed warranty repair on the defect.
The visit is recorded on a repair order that names the symptom and the work done.
The same problem returned after the repair.

What gets a claim thrown out

Verbal complaints with no written repair order.
Different problems lumped together to reach three visits when no single defect repeats.
Damage caused by abuse, accident, neglect, or unauthorized modifications.

Insist on a written repair order every single time, even when the dealer says they "could not duplicate" the issue. A "no fault found" order still proves you reported the defect on that date, and that date may matter for both the three-attempt count and the warranty deadline. If a code is involved, looking it up first, for example a powertrain fault like P0300, helps you describe the symptom precisely so it lands on the paperwork the same way each visit.

💰 What a buyback actually pays

If your claim succeeds, the manufacturer chooses between two outcomes: replace the vehicle with a comparable new one, or refund what you paid. Most owners take the refund. Here is roughly how that refund is built.

Component	Included?	Notes
Purchase price	Yes	The contract price you actually paid
Sales tax	Yes	Generally refunded as part of the total
Registration & fees	Yes	Reasonable collateral costs
Finance charges	Often	Interest you paid on the loan
Mileage offset	Subtracted	A reasonable allowance for use before the first repair attempt

The mileage offset is the one deduction that surprises people. The manufacturer is allowed to subtract a reasonable amount for the miles you drove before the defect first sent you to the shop, not for every mile since. So the longer you waited to report the problem, the bigger the offset. Reporting early protects both your deadline and your wallet.

⚖️ The arbitration and buyback process, step by step

New Hampshire runs lemon law disputes through a state new motor vehicle arbitration board rather than forcing you straight into a lawsuit. It is cheaper and faster than court. Here is the path.

Confirm you hit a threshold. Three failed repairs on one defect, 30 cumulative days out of service, or one failed safety repair, all within the warranty year.
Notify the manufacturer. Give written notice and, where required, a final chance to fix the defect.
Gather your records. Every repair order, the purchase contract, registration, and any correspondence.
File for arbitration. Request a hearing before the state board within the allowed window after the warranty period.
Attend the hearing. Present your timeline and documents. The manufacturer presents its side.
Get the decision. If you win, the board orders a replacement or refund. Either side can appeal to court.

Before you spend on repairs or trade the car in frustration, it is worth sanity-checking what a fix should even cost. Our repair quote checker can tell you whether a dealer's estimate is fair, which sometimes reveals that a "minor" repair was actually a recurring defect in disguise.

⚠️ Common mistakes that kill NH lemon claims

Waiting past the warranty year. The defects and repair attempts must fall inside the term. Miss it and the strongest leverage is gone.
No written repair orders. If it is not on paper, it did not happen as far as the board is concerned.
Using independent shops for warranty work. The manufacturer needs its authorized dealers to have had the repair attempts.
Letting the dealer log vague complaints. Make sure each order describes the same specific symptom so your three attempts clearly match.
Assuming used cars are covered the same way. The core law targets new vehicles under the original warranty.

If you are still inside the warranty and watching a problem return, do not let it ride. Document the next visit, look up any trouble codes, and decide whether to escalate. A clear, dated record of one repeating defect is worth far more than a fat folder of unrelated complaints.

❓ Frequently asked questions

What vehicles does the New Hampshire lemon law cover?

It protects new motor vehicles, including cars and certain trucks and motorcycles, that are still under the manufacturer's express warranty. The defect must be reported during the warranty term, and the law focuses on vehicles bought or registered in the state for personal, family, or household use.

How many repair attempts qualify a car as a lemon in New Hampshire?

Generally, the same substantial defect must go through three or more repair attempts without success, or the vehicle must be out of service for repair for a cumulative 30 or more calendar days. A single safety defect that could cause death or serious injury may qualify after just one repair attempt.

Is there a deadline to file a New Hampshire lemon law claim?

The qualifying defects and repair attempts must occur during the term of the express warranty or within the first year after delivery, whichever comes first. You then have a limited window after that to request a hearing before the state's new motor vehicle arbitration board, so act promptly once the threshold is met.

Do I have to use arbitration or can I go to court?

New Hampshire routes lemon law disputes through a state-run new motor vehicle arbitration board. Filing through this board is the standard path and is far cheaper than litigation. If you disagree with the board's decision, the law allows an appeal to court.

What do I get if my car is declared a lemon?

If your claim succeeds, the manufacturer must either replace the vehicle or refund the purchase price. A refund typically includes the price plus taxes, registration, and finance charges, minus a reasonable allowance for the miles you drove before the first repair attempt.

Does the New Hampshire lemon law cover used cars?

The core lemon law is aimed at new vehicles under the original warranty. Used cars are not covered the same way, though a used vehicle still inside the manufacturer's original warranty period may qualify. Used buyers also rely on warranty law and dealer warranty rules rather than the new-car buyback process.

📝 TL;DR

The New Hampshire lemon law covers new vehicles during the warranty term or first year, whichever ends first. You qualify after three failed repairs on the same substantial defect, 30 cumulative days out of service, or a single failed safety repair. Win at the state arbitration board and the manufacturer must replace your car or refund the price plus taxes and fees, minus a mileage offset. Your written repair orders are the case, so document every visit and never let the warranty clock run out.

This page is general information, not legal advice. Thresholds and deadlines can change, so confirm current rules with the New Hampshire Department of Justice or a qualified attorney before filing.

New Hampshire Lemon Law: Thresholds, Repair Rules, and the Buyback Process