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Montana · Topic Updated May 26, 2026

Vehicle Types Under the Montana Lemon Law

How Montana's lemon law applies across vehicle types — used, leased, EV, motorcycles, RVs, and commercial — under the 15,000-lb truck cap, the motorcycle exclusion, and the personal-use rule.

The Montana Lemon Law (§ 61-4-501) covers a new motor vehicle purchased or leased for personal, family, or household use, designed primarily to carry passengers on public highways. It expressly excludes trucks of 15,000 lbs GVWR or more (and the residential portion of motor homes) (§ 61-4-501); motorcycles are not named in the definition and likely fall outside its passenger-vehicle scope — confirm coverage.

Topics in this section

  • Used vehicles — Coverage during the warranty period, plus CPA and Magnuson-Moss.
  • Leased vehicles — Covered for personal/family/household use.
  • Electric vehicles — EV coverage and cold/charging/distance factors.
  • Motorcycles — Likely outside the Act; the alternatives.
  • RVs — The chassis vs. the coach, and the 15,000-lb cap.
  • Commercial vehicles — The personal-use rule and the 15,000-lb truck cap.

What’s covered and what isn’t

Vehicle typeMontana Lemon Law coverage
New car / SUV (personal use)Covered
Pickup / truck under 15,000 lbs (personal use)Covered
Leased vehicle (personal use)Covered
Used vehicleCovered during the warranty period; else CPA / Magnuson-Moss
Electric vehicleCovered
MotorcycleLikely outside the Act (not named; confirm)
Truck 15,000 lbs GVW or moreExcluded
Business/commercial-use vehicleExcluded (personal/family/household only)

Distinctive coverage notes

  • Motorcycles are not named in the Act — and likely fall outside its passenger-vehicle scope, a contrast with Rhode Island, New Hampshire, and Hawaii (which expressly cover them). Montana riders generally rely on Magnuson-Moss and the CPA; confirm coverage for your vehicle.
  • The truck cap is 15,000 lbs — higher than the common 10,000-lb cutoff, so more heavy-duty pickups (common in ranching Montana) stay covered.
  • Personal/family/household use only — business-use vehicles fall outside.

When the lemon law doesn’t reach

For motorcycles, trucks 15,000 lbs or more, business-use and used vehicles outside the warranty period, the CPA (discretionary treble, discretionary fees) and Magnuson-Moss (4-year SOL, § 2310(d)(2) fees) remain available.

Related

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