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New Hampshire · Article Updated May 26, 2026

Used Vehicles Under the New Hampshire Lemon Law

How New Hampshire's lemon law applies to used vehicles — coverage during the original manufacturer warranty, plus the CPA (treble + mandatory fees) and Magnuson-Moss.

The New Hampshire Lemon Law applies to vehicles still within the original manufacturer warranty period (the warranty term plus one year) — so a used vehicle within that window can qualify. For older used vehicles and dealer misrepresentation, the CPA and Magnuson-Moss carry the load.

Route 1 — the lemon law, during the original warranty

A used vehicle still under the original manufacturer warranty and within the warranty-plus-one-year protected period can qualify, with the consumer satisfying the presumption and filing with the Arbitration Board.

Route 2 — the CPA for misrepresentation

The NH CPA is the primary tool for used-car deception, with actual damages or $1,000, double-to-treble damages, and mandatory fees:

  • Undisclosed prior accident, flood, or frame damage.
  • Odometer misrepresentation.
  • Concealed salt/rust corrosion — a real New Hampshire used-market issue.
  • Hidden mechanical defects known to the dealer.

No 30-day pre-suit demand is required.

Route 3 — Magnuson-Moss

Magnuson-Moss covers remaining written and implied warranties (merchantability under RSA 382-A:2-314), with a 4-year runway and § 2310(d)(2) federal fees.

A New Hampshire used-market note

Given New Hampshire’s heavy road salt, rust and corrosion history is a material disclosure issue. A dealer concealing structural rust or prior flood/salt damage is a strong CPA target — with the treble multiplier in play for willful nondisclosure.

Bottom line

Used New Hampshire vehicles can qualify for the lemon law while under the original warranty, and the CPA plus Magnuson-Moss cover misrepresentation — including concealed rust/corrosion. Get a free case review.

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