Wyoming Used Car Lemon Law: The One-Year Limit Explained

Wyoming's lemon law, Wyo. Stat. 40-17-101, almost never helps a used-car buyer, because it runs on a one-year clock that starts when the car is first delivered to its original owner. A later owner can technically count while the express warranty lasts, but the defect still has to be reported inside that first year. So for most used purchases in Wyoming, your protection is the Buyer's Guide, your written contract, the state Consumer Protection Act, and your own inspection. Wyoming also doesn't require lemon buybacks to be branded on the title, which is the bigger problem for used shoppers.

On Sunday, October 18, 2026, I read BBB National Programs' Wyoming lemon law summary (updated June 2022), the Wyoming Attorney General's Consumer Protection and Antitrust Unit page, and WYDOT's dealer regulation pages. The statute text sites I tried returned 403 errors to my checker, so the 40-17-101 details below follow the BBB summary. Not legal advice.

How the one-year law works

Per the BBB summary, the law covers motor vehicles sold or registered in Wyoming with an unladen weight under 10,000 pounds. If you report a warranty defect to the manufacturer, its agent or a dealer within one year after original delivery, they must fix it, even if the repair itself happens after the year runs out. A reasonable number of attempts is presumed if, within that year, the same problem has been repaired more than three times and still exists, or the car has been out of service for a cumulative 30 business days. The presumption only applies after the manufacturer gets direct written notice from you and a chance to cure.

If repairs fail, the manufacturer must replace the car or repurchase it for the full price plus collateral charges, minus a use allowance. If the maker runs an informal dispute program that complies with federal rule 16 CFR 703, you have to use it first. You can recover reasonable attorney's fees if you win. The BBB notes the law doesn't set its own filing deadline and assumes the UCC's four-year limit applies, and that it appears not to cover lessees.

Used cars and the Jewell case

The consumer definition includes anyone "to whom a motor vehicle is transferred during the term of an express warranty," and the BBB summary cites Jewell v. Chrysler (994 P.2d 330) for the point that a previously owned vehicle still under warranty can be covered. In practice that means a car traded in or resold within months of first delivery. Pull the original in-service date from the dealer or a report before you count on it. Our Montana used car lemon law post covers a neighbor with its own limits.

What a report may not tell you

The BBB summary lists Wyoming as having no required disclosure to a later buyer and no title branding for lemon buybacks. That's a real gap. A car the manufacturer bought back somewhere else can pass through Wyoming, and nothing in this statute forces a brand onto the paperwork. Search NMVTIS and pull a full history report, then ask the seller in writing whether the car was ever repurchased under any state's lemon law. Our lemon buyback title brand post explains which states do brand.

As-is, cooling-off and dealer licensing

Dealer used cars must carry the federal Buyer's Guide under 16 CFR 455, which shows whether the car is sold as-is or with a warranty. Our as-is used car guide explains what that checkbox costs you. I didn't find a Wyoming law giving car buyers a cooling-off period, and the FTC's Cooling-Off Rule exempts vehicle sellers with a permanent place of business even at auctions and tent sales. Sign, and the car is yours.

WYDOT licenses dealers and investigates complaints, including trouble getting a title or fraud by the seller. The AG's office has also passed along a WYDOT warning about spoofed dealer websites selling vehicles that may not exist. Look, if a Wyoming truck is priced way under market and the seller won't let you see it in person, walk. The AG's unit accepts written complaints under the Consumer Protection Act, but says it can't act as your private attorney.

Title checks for Wyoming cars

Before you pay, read our Wyoming salvage and rebuilt title rules, our Wyoming salvage title rules post, and the Wyoming private sale title transfer steps. We are a licensed CARFAX and AutoCheck reseller with no connection to CARFAX, AutoCheck or Experian. As of mid October 2026 a guest report runs about $5.50, members pay about $4.50, and the bundle is close to $6.75, versus retail near $39.99 to $44.99. Confirm at checkout; we adjust prices from time to time.

Sources

• Wyo. Stat. 40-17-101 via BBB National Programs: Wyoming Lemon Law Summary (statute sites 403'd to automated checks, Oct. 18, 2026)
• Wyoming AG Consumer Protection; WYDOT Vehicle Business Regulation; 16 CFR 455; NMVTIS