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Wyoming · Article Updated May 27, 2026

Wyoming's Repair-Attempt Presumption (§ 40-17-101)

When Wyoming presumes a vehicle is a lemon — more than three repair attempts or 30 business days out of service within one year of delivery.

Wyoming’s lemon-law presumption is set within Wyo. Stat. § 40-17-101. Meet it and the law presumes the manufacturer has had a reasonable number of attempts to fix the vehicle — shifting the case in your favor.

The two triggers

Within one year following original delivery, the presumption arises if either:

  1. More than three repair attempts — the same nonconformity has been subject to repair more than three times (so a fourth attempt) by the manufacturer or its authorized dealer, and it persists; OR
  2. 30 business days out of service — the vehicle is out of service for repair a cumulative 30 business days.

Wyoming counts business days, not calendar days, toward the 30. Both triggers run on the one-year clock from delivery.

Report within the year

The presumption is tied to the requirement that you report the nonconformity within one year of delivery (§ 40-17-101). Even though repairs must continue after the year, the lemon-law remedy depends on that early reporting — so raise the defect with the dealer promptly and get it on paper. See statute of limitations.

What counts as a repair attempt

  • A visit to the manufacturer or an authorized dealer for the same nonconformity. See which repair shop.
  • Independent-shop and DIY repairs don’t count — and can trigger an abuse defense.
  • Keep a repair order for every visit describing the problem in your words.

Wyoming’s distance factor

In a low-population state with few dealers and long distances, parts can take time and a single repair can keep a vehicle out of service for many days — so the 30-business-day trigger can be reached through parts delays. Track every out-of-service day, including parts-wait time. See documenting evidence.

Substantial impairment still required

The presumption speaks to how many attempts are reasonable — you still must show the defect substantially impairs the use and fair market value of the vehicle (§ 40-17-101). See qualifying defects.

Bottom line

In Wyoming, more than three repair attempts or 30 business days out of service within one year of delivery presumes a reasonable number of attempts — report early and document every visit. Get a free case review.

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