Illinois lemon law: a consumer guide

Who is covered?

The New Vehicle Buyer Protection Act concerns qualifying new motor vehicles and covered consumers. Read § 2 for definitions, including vehicle categories and use restrictions, before assuming every titled vehicle or commercial fleet is included.

Start with the purchase or lease agreement, registration, original delivery date and complete warranty. A vehicle marketed as new, used or certified may need a closer look under the statute's definitions. If you moved, bought across state lines or use the car for business, flag those facts before assuming the rules below apply.

Coverage periods and mileage

The statutory warranty period is one year or 12,000 miles following delivery, whichever occurs first. This period is distinct from any longer manufacturer's warranty and the deadline for bringing an action.

Keep three dates separate: when the symptom began, when you reported it and when the facility attempted repair. Also keep the mileage for each event. An appointment booked before a deadline is not necessarily the same as a legally sufficient report. Preserve emails and work orders so the actual sequence can be checked.

Repair attempts and days out of service

Section 3 describes four or more repairs of the same continuing nonconformity during the statutory warranty period, or 30 or more business days out of service for repair of nonconformities during that period. Business days are not calendar days.

These figures are not an automatic qualification score. The nature of the defect, whether it remains or recurs, and the applicable evidence rules still matter. Count actual visits and downtime separately. Keep raw drop-off and ready-for-pickup dates rather than relying on your own legal interpretation of which days should count.

Manufacturer notice and final repair

Report the problem promptly to the seller and manufacturer's authorized repair network, and follow the written warranty's dispute instructions. Do not substitute a verbal conversation for an actual repair order. Section 4 makes adequate notice of an applicable informal settlement program important.

Read the warranty's contact section and the official instructions before sending anything formal. Include a factual description, repair chronology and vehicle identification in a private submission. Keep a complete copy and proof of delivery. Sending a complaint to a dealer, agency or online review site is not necessarily the same as notifying the manufacturer.

Arbitration and dispute programs

Section 4 can require first resort to a manufacturer's informal settlement procedure when the manufacturer established a qualifying program and the consumer received adequate written notice. A dissatisfied consumer can then bring a civil action, subject to the law's rules.

Identify the specific program, who administers it, what claims it accepts and whether participation or acceptance is required. Request the rules before applying. A customer-service case, manufacturer informal program, state hearing and binding contractual arbitration are different processes. Keep the application, acknowledgment, evidence packet and decision together.

What about used cars?

The new-vehicle Act is not the state's only protection. Under 815 ILCS 505/2L, qualifying dealer used-car sales have a limited implied powertrain warranty of 15 days or 500 miles, whichever is earlier, with exclusions and notice/repair requirements. This is a different law, not an extension of the new-car buyback test.

Preserve the advertisement and any written promises made at sale. A service contract sold separately is not interchangeable with a manufacturer's warranty. A history report can supplement your file but does not establish legal coverage or replace a mechanical inspection. Our used-car guide explains how to separate those questions.

Deadlines: do not use the protection period as a filing date

Section 6 says an action under the new-vehicle Act must begin within 18 months of original delivery. Section 4 provides an extension equal to time the dispute was pending in the applicable informal procedure. Have the actual dates checked; do not assume ordinary customer-service discussions create the same extension.

Make a calendar entry to verify timing now, not after another repair fails. Ask which event starts the clock, whether a particular notice must be received rather than sent and whether any program affects limitations. Do not assume informal negotiations, a pending parts order or a verbal assurance extend a legal deadline.

A practical next-step plan

First, address immediate safety. Ask a qualified repair professional about safe transport and avoid recreating a dangerous failure to produce evidence. A recall search may identify model-level campaigns, but a VIN check with NHTSA or the manufacturer is the better next step for an individual vehicle.

Second, create one repair file. Keep the transaction documents, complete warranty, every repair order, dated symptom notes and receipts. Use a one-page timeline as an index, not as a substitute for the original records. Include visits where the technician could not duplicate the problem and repairs that cost you nothing.

Third, match your timeline to the official state process. Identify the responsible manufacturer contact, any final repair opportunity and the correct dispute program. If a record is inaccurate, request a written correction rather than editing the invoice yourself. Keep your own observations separate from a technician's diagnosis.

Finally, review proposed outcomes carefully. A repurchase, replacement, trade-in and cash settlement are different transactions. Ask how loan or lease payoff, deductions, expenses, vehicle return and released claims are handled. Do not stop payments, cancel insurance or surrender the car solely because someone says a resolution is being considered. A licensed attorney can explain claim-specific obligations and settlement terms.