Qualifies as a Lemon in Michigan

Two Things Every Lemon Law Case Must Prove

Michigan’s lemon law statute, officially the New Motor Vehicle Warranty Act, sets up a two part test. A vehicle owner has to show that the vehicle has a qualifying defect, and that the manufacturer was given a fair chance to repair it through a specific number of attempts or a specific length of time out of service. Meeting only one of these two elements is not enough. A minor issue that gets fixed on the second visit does not qualify, and a serious safety defect reported only once, with no further attempts to repair it, generally does not qualify either. Both pieces have to line up.

A Defect That Substantially Impairs Use, Value, or Safety

The statute does not provide a list of covered defects. Instead, it asks whether the problem substantially impairs the vehicle’s use, value, or safety to the consumer. That standard covers a wide range of issues in practice. A transmission that hesitates or slips, a persistent electrical fault that disables safety systems, a brake system that intermittently loses pressure, and a recurring check engine warning tied to an unresolved emissions fault have all supported qualifying claims. A cosmetic issue with no functional effect, on the other hand, is unlikely to clear this bar on its own. The consumer’s own assessment of the impairment matters, but the law requires that assessment to be reasonable, which is why a documented pattern across multiple repair visits carries more weight than a single complaint.

Meeting the Repair Attempt or Days Out of Service Threshold

Once a qualifying defect is established, Michigan law looks at how many chances the manufacturer had to fix it. A vehicle is presumed to qualify once the same defect has been the subject of four or more repair attempts, or once the vehicle has been out of service for repairs a cumulative total of thirty or more days. Only one of these two thresholds needs to be met, not both. Before a claim can move forward, the manufacturer is also entitled to a final repair opportunity after written notice, which is a specific, technical step that has caused real cases to be dismissed when it was skipped or handled incorrectly.

We cover the full timing rules, the written notice requirement, and how the two thresholds interact with the warranty period in detail in our Michigan Lemon Law Guide, so we will only flag the essentials here. What matters most at this stage is tracking every repair visit in writing as it happens, since a strong paper trail is what turns these thresholds from a technicality into a straightforward case to prove.

What Kind of Vehicle Has to Be Involved

Michigan’s lemon law applies to new passenger cars, SUVs, pickup trucks, and vans purchased or leased primarily for personal, family, or household use. A used vehicle can still qualify if it was covered by a manufacturer’s express warranty at the time of purchase or lease. Motorcycles, motor homes, RVs, and a handful of other vehicle types fall outside this particular statute, though federal and state warranty law often still provides a path forward for those vehicles. We cover that distinction fully on our Michigan Lemon Law for Motorcycles and RVs page.

If Your Vehicle Qualifies

Once a vehicle qualifies, Michigan law generally entitles the consumer to a replacement vehicle or a full refund of the purchase price, reduced by a mileage-based usage allowance, along with attorney fees and costs. The exact math depends on the purchase price, financing details, and mileage at the time the defect was first reported, and it is specific to each case, so we calculate it individually rather than offering a single formula here.