State lemon law · checked October 23, 2026
Verified against the statute / official state publicationRSA 357-D (New Motor Vehicle Arbitration); RSA 357-C:3 definitions
| Presumption window | New Hampshire has no month/mile cap in the lemon law itself: the attempts must occur within the express warranty term. |
|---|---|
| Same defect | 3+ repair attempts |
| Days out of service | 30+ business days — 30 or more BUSINESS days out of service. Attempts must be evidenced by written repair orders, at the same dealer unless you show good cause. |
The presumption is the set of numbers that shifts the burden to the manufacturer. A claim can exist outside the presumption — it is a shortcut, not the whole road. Read why.
Deduction = full purchase price × miles traveled before the FIRST repair attempt ÷ 100,000. Motorcycles: ÷ 40,000 (over 250cc) or ÷ 20,000 (250cc or smaller).
After the 3rd attempt or 30 business days out, notify the manufacturer in writing and ELECT your forum: the manufacturer's dispute program or the state Motor Vehicle Arbitration Board. The election locks out the forum you didn't pick.
Dispute route: The NH Motor Vehicle Arbitration Board is a state forum: $50 filing fee, hearing within 40 days, decision enforceable against the manufacturer.
Attorney's fees: New Hampshire provides attorney's fees to a prevailing consumer.
Request arbitration within 3 years of original delivery (NH Dept. of Safety guidance). Board fee: $50 for the consumer ($250 for the manufacturer); the hearing is held within 40 days, and the manufacturer gets one final repair attempt inside that window.
| New vehicles | Covered |
|---|---|
| Leased vehicles | Covered |
| Used vehicles | Covered in defined situations — see notes |
| Motorcycles | Covered |
| RV / motor home | Covered — chassis / powertrain only |
Your repair-log tracker, the New Hampshire notice letter, the buyback worksheet on New Hampshire's formula, and your deadline calendar.
Checked October 23, 2026. Laws change; if your claim is close to a line, verify the current statute or ask a lawyer in New Hampshire. This page is information, not legal advice.