Wisconsin Lemon Law: Complete Guide for 2026

Wisconsin Lemon Law consumer protection guide

Last verified: February 2026

Key Points

Primary Law: Wisconsin Motor Vehicle Warranty Law (Wis. Stat. § 218.0171)
Coverage: New motor vehicles, including motorcycles, motor homes, and heavy-duty vehicles
Presumption: 4 repair attempts for the same defect OR 30+ days out of service
Timeframe: Within warranty period or 1 year, whichever is sooner
Remedies: Replacement vehicle or full refund at consumer’s choice
Unique Feature: State-certified informal dispute settlement procedures

Quick Penalties Overview

Violation Type	Consumer Remedy	Additional Recovery
Failure to repair after reasonable attempts	Refund or replacement	Attorney fees, costs, and disbursements
Manufacturer violation of statute	Pecuniary loss	Equitable relief as court determines appropriate
Resale without disclosure	Prohibition violation	Subject to enforcement

📑 Table of Contents (click to expand)

The Wisconsin Motor Vehicle Warranty Law
What Vehicles Are Covered
Wisconsin’s Lemon Law Presumption
Consumer Remedies: Refund vs. Replacement
How to File a Lemon Law Claim
Certified Dispute Settlement Procedures
Leased Vehicle Protections
Heavy-Duty Vehicle Provisions
Manufacturer Defenses
Resale of Returned Vehicles
Statute of Limitations
Frequently Asked Questions
Resources and Legal Help

The Wisconsin Motor Vehicle Warranty Law

Wisconsin’s lemon law, codified at Wis. Stat. § 218.0171, provides comprehensive protections for consumers who purchase or lease defective new motor vehicles in the Badger State. The law covers a broad range of vehicles, including motorcycles, motor homes, and even heavy-duty vehicles with gross vehicle weight ratings over 10,000 pounds.

A distinctive feature of Wisconsin’s law is its Department of Transportation-certified informal dispute settlement procedures. The DOT investigates each procedure provided in the state to determine compliance, certifies qualifying procedures, and publishes annual reports evaluating them. This oversight helps ensure consumers have access to fair and effective dispute resolution.

Wisconsin’s law also includes detailed provisions for leased vehicles, with specific calculations for refunds to both lessees and lessors. The statute addresses complex lease-related concepts like early termination costs and savings, providing clear guidance for all parties.

What Vehicles Are Covered

Wisconsin has one of the broadest vehicle coverage provisions of any state lemon law.

Covered Vehicle Types

Standard motor vehicles: Any motor driven vehicle required to be registered under Wisconsin law
Vehicles exempt from registration: Covered if exempt as nonresident or foreign-registered vehicles
Demonstrator vehicles: Vehicles used primarily for demonstration to the public
Executive vehicles: Vehicles used primarily by manufacturer, distributor, or dealer executives
Motorcycles: Fully covered under the law
Motor homes: Including living quarters components
Heavy-duty vehicles: Vehicles with GVWR over 10,000 pounds (with some modified provisions)
Leased vehicles: Vehicles leased under written lease agreements

Vehicles NOT Covered

Mopeds
Semitrailers
Trailers designed for use in combination with a truck or truck tractor
Previously owned (used) vehicles

Consumer Definition

Wisconsin defines “consumer” broadly to include:

Purchasers of new motor vehicles from dealers (not for resale)
Transferees receiving the vehicle before warranty expiration (not for resale)
Persons who may enforce the warranty
Persons who lease a motor vehicle under a written lease

Wisconsin’s Lemon Law Presumption

Under Wis. Stat. § 218.0171(1)(h), Wisconsin law defines a “reasonable attempt to repair” as occurring when certain conditions are met within the warranty period or one year after first delivery, whichever is sooner.

The Lemon Law Presumption Applies When:

Condition	Requirement	Details
Repair Attempts (Same Problem)	4 or more attempts	Same nonconformity subject to repair and continues to exist
Days Out of Service	30 or more aggregate days	Vehicle out of service because of warranty nonconformities
Coverage Period	Warranty term OR 1 year	Whichever is sooner from date of first delivery

What Counts as “Out of Service”?

Wisconsin specifically defines “out of service” as occurring when:

The vehicle is in the possession of the manufacturer, motor vehicle lessor, or any authorized dealer for repairs or repair attempts, OR
The vehicle is in the consumer’s possession AND has a nonconformity that substantially affects use or safety AND has been subject to at least 2 repair attempts

Exclusions from 30-Day Calculation

Time during which repair services are not available due to the following may NOT be included in the 30-day out of service period:

Flood or other natural disaster
War
Invasion
Fire
Strike

What Qualifies as a “Nonconformity”?

A nonconformity is a condition or defect that:

Substantially impairs the use, value, or safety of a motor vehicle
Is covered by an express warranty applicable to the vehicle or a component

A condition or defect caused by abuse, neglect, or unauthorized modification or alteration by a consumer does NOT qualify as a nonconformity.

Consumer Remedies: Refund vs. Replacement

After a reasonable attempt to repair, Wisconsin gives consumers the choice between a replacement vehicle or a full refund. The consumer must provide the manufacturer with a specific state-prescribed form to make their election.

Option 1: Replacement Vehicle

If the consumer elects a replacement, the manufacturer must:

Accept return of the nonconforming motor vehicle
Provide a comparable new motor vehicle
Refund any collateral costs

Timeline for Replacement (Standard Vehicles)

Within 30 days: Manufacturer must agree in writing to provide a comparable new vehicle or a refund
Within 45 days: Manufacturer must either provide the replacement or the refund
If a comparable vehicle cannot be found, manufacturer retains the right to provide a refund instead

Timeline for Replacement (Heavy-Duty Vehicles)

Within 30 days: Manufacturer must agree in writing to provide a comparable new vehicle or a refund
Within 120 days: Manufacturer must provide the replacement or refund (extended timeline for heavy-duty vehicles)

Option 2: Full Refund

If the consumer elects a refund, the manufacturer must provide:

Full purchase price: The complete price paid for the vehicle
Sales tax: All applicable taxes
Finance charges: Interest and fees paid
Amount paid at point of sale: Down payments and other charges
Collateral costs: Expenses incurred in connection with repairs, including alternative transportation costs

Usage Deduction: The manufacturer may deduct a reasonable allowance for use, calculated as follows:

Usage Deduction = (Full Purchase Price × Miles Before First Report) ÷ 100,000

For motorcycles, the denominator is 20,000 instead of 100,000.

Payment Timeline

The refund must be provided no later than 30 days after the consumer offers to transfer title of the vehicle to the manufacturer.

Process for Receiving Remedy

To receive a refund or replacement:

Consumer must provide the manufacturer with the state-prescribed form
Consumer must offer to transfer title of the nonconforming vehicle to the manufacturer
Consumer must return the vehicle and provide the certificate of title with necessary endorsements

How to File a Lemon Law Claim in Wisconsin

Step 1: Document Everything

Keep all repair orders and invoices
Record the dates your vehicle was in the shop or out of service
Document the symptoms you experienced
Save all correspondence with the dealer and manufacturer
Take photos or videos of defects when possible

Step 2: Report the Nonconformity

Report the problem to the manufacturer, motor vehicle lessor, or any authorized dealer and make the vehicle available for repair before the warranty expires or within one year of first delivery, whichever is sooner.

Step 3: Allow Repair Attempts

Give the manufacturer, lessor, or dealer the opportunity to repair the nonconformity. Keep careful records of each repair attempt.

Step 4: Obtain State-Prescribed Form

The Wisconsin Department of Transportation prescribes forms for consumers to elect replacement or refund. These forms are available on the DOT’s website.

Step 5: Check for Certified Dispute Settlement Procedure

If a certified informal dispute settlement procedure is available, you must use it before bringing a lawsuit.

Step 6: File Claim or Lawsuit

If the manufacturer fails to provide relief, you may bring a civil action within 36 months after first delivery.

Certified Dispute Settlement Procedures

Wisconsin has a unique system of state-certified informal dispute settlement procedures, overseen by the Department of Transportation.

DOT Certification Requirements

The DOT adopts rules requiring each procedure to:

Provide rights and procedures at least as favorable as required under federal regulations (16 CFR Part 703)
Require manufacturers to provide remedies as set forth in the lemon law after a reasonable attempt to repair

DOT Oversight

The Department of Transportation:

Investigates each informal dispute settlement procedure provided in Wisconsin
Certifies procedures that comply with state rules
May revoke certification if procedures no longer comply
Publishes annual reports evaluating procedures, stating certification status and reasons for any failures

When Dispute Resolution is Required

If a certified informal dispute settlement procedure is available, the consumer may not bring a lawsuit unless he or she first resorts to that procedure.

Manufacturer Licensing Consideration

The DOT may consider whether a manufacturer obtains certification in determining whether to issue a manufacturer’s license to do business in Wisconsin.

Leased Vehicle Protections

Wisconsin provides detailed protections for consumers who lease vehicles under written lease agreements.

Refund Calculation for Leased Vehicles

When a leased vehicle qualifies as a lemon, refunds are distributed as follows:

Motor Vehicle Lessor Receives:

The current value of the written lease, calculated as:
- Total amount the lease obligates the consumer for the remaining lease term, PLUS
- The lessor’s early termination costs, PLUS
- The value of the vehicle at lease expiration (if stated in the lease), MINUS
- The lessor’s early termination savings

Consumer (Lessee) Receives:

Amount paid under the written lease
Any sales tax
Collateral costs
Less a reasonable allowance for use

Usage Deduction for Leased Vehicles

Usage Deduction = (Total Lease Obligation × Miles Before First Report) ÷ 100,000

Lease Termination

After the consumer receives a refund, no person may enforce the lease against the consumer.

Heavy-Duty Vehicle Provisions

Wisconsin includes special provisions for “heavy-duty vehicles,” defined as motor vehicles with a gross vehicle weight rating or actual gross weight of more than 10,000 pounds.

Extended Replacement Timeline

For heavy-duty vehicles, manufacturers have 120 days (instead of 45 days) to provide a comparable new motor vehicle or refund after receiving the consumer’s election form.

Negotiated Settlement Option

If a consumer enters into a negotiated written settlement with the manufacturer regarding a heavy-duty vehicle nonconformity, the manufacturer is no longer subject to most lemon law requirements with respect to that vehicle (except disclosure requirements for resale).

Manufacturer Defenses

Wisconsin’s lemon law does not create a nonconformity when the condition or defect results from:

Defense	Manufacturer’s Argument	Consumer’s Counter
Consumer abuse	Defect resulted from consumer abuse of the vehicle	Provide evidence of proper use and care
Consumer neglect	Defect resulted from consumer neglect	Provide maintenance records showing proper service
Unauthorized modification	Defect resulted from modification or alteration not authorized by manufacturer	Show defect existed before modifications or is unrelated

Failure to Cooperate

If a court finds that any party has failed to reasonably cooperate with another party’s efforts to comply with the law, the court may:

Extend deadlines specified in the statute
Reduce damages, attorney fees, or costs
Strike pleadings
Enter default judgment against the offending party

Resale of Returned Vehicles

Wisconsin requires full disclosure before any vehicle returned under the lemon law can be sold or leased again.

No motor vehicle returned by a consumer or motor vehicle lessor in Wisconsin under the lemon law, or by a consumer or lessor in another state under a similar law, may be sold or leased again in Wisconsin unless full disclosure of the reasons for return is made to any prospective buyer or lessee.

Sales Tax Refund

The Department of Revenue must refund sales tax to:

The manufacturer (if the manufacturer refunded sales tax to the consumer)
The consumer (if the manufacturer refunded the purchase price but not the corresponding sales tax)

Statute of Limitations

Under Wis. Stat. § 218.0171(7)(a), any action to recover for damages caused by a violation of the lemon law must be commenced within 36 months (3 years) after first delivery of the motor vehicle to a consumer.

Frequently Asked Questions

How many repair attempts does Wisconsin require before a vehicle is considered a lemon?

Wisconsin law defines a reasonable attempt to repair as occurring when the same nonconformity has been subject to repair at least 4 times and continues to exist, or when the vehicle has been out of service for an aggregate of at least 30 days because of warranty nonconformities. These conditions must occur within the warranty period or one year after first delivery, whichever is sooner.

Does Wisconsin’s lemon law cover used vehicles?

No, Wisconsin’s lemon law applies only to new motor vehicles. However, used vehicles may be protected under the federal Magnuson-Moss Warranty Act if they have remaining manufacturer warranty coverage.

Does Wisconsin’s lemon law cover motorcycles and motor homes?

Yes, Wisconsin is one of the few states that explicitly covers motorcycles and motor homes under its lemon law. For motorcycles, the usage deduction calculation uses a 20,000-mile denominator instead of 100,000 miles.

What is the usage deduction in Wisconsin?

The manufacturer may deduct a reasonable allowance for miles driven before you first reported the nonconformity. For standard vehicles, this is calculated by multiplying the purchase price by the miles driven divided by 100,000. For motorcycles, the divisor is 20,000.

What are the special rules for leased vehicles?

Wisconsin has detailed provisions for leased vehicles. Refunds are split between the lessor (who receives the current value of the lease) and the lessee (who receives amounts paid plus sales tax and collateral costs, less usage). After receiving a refund, the lease cannot be enforced against the consumer.

What is a state-certified dispute settlement procedure?

Wisconsin’s Department of Transportation certifies informal dispute settlement procedures that meet state standards. If a certified procedure is available for your vehicle’s manufacturer, you must use it before filing a lawsuit. The DOT publishes annual reports evaluating these procedures.

Can I recover attorney fees in Wisconsin?

Yes, the court may award a prevailing consumer the amount of any pecuniary loss together with costs, disbursements, and reasonable attorney fees.