Dealing With a Lemon Vehicle in Illinois
My new car keeps breaking down — here's what Illinois law says and what to do next.
Statute: 815 ILCS 380/1 et seq. (New Vehicle Buyer Protection Act), 815 ILCS 380/3 (refund or replacement for nonconformity not cured after a reasonable number of attempts), 815 ILCS 380/4 (presumption: 4+ repair attempts for same nonconformity or 30+ business days out of service), 815 ILCS 380/5(c) (18-month statute of limitations running from expiration of the express warranty term), 815 ILCS 380/7 (consumer's election of informal dispute resolution); 815 ILCS 505/10a (Illinois Consumer Fraud and Deceptive Business Practices Act — independent cause of action with fee-shifting and punitive damages for knowing violations)
Deadline: 30 days
Penalty: Illinois's New Vehicle Buyer Protection Act (815 ILCS 380) does not contain an independent attorney-fee provision — prevailing consumers typically rely on the federal Magnuson-Moss Warranty Act (15 U.S.C. § 2310(d)(2)) for fee-shifting, or pair the lemon-law claim with a count under the Illinois Consumer Fraud Act (815 ILCS 505/10a), which authorizes actual damages, attorney fees, and punitive damages for knowing violations. The lemon-law statute of limitations under 815 ILCS 380/5(c) is eighteen (18) months from the expiration of the express warranty period — notably shorter than the 4-year UCC window, so timely filing is critical
What is dealing with a lemon vehicle?
Lemon laws exist because, before the late 1970s, buying a new car with a defect that nobody could fix meant you were just stuck with it. California passed the first modern lemon law — the Song-Beverly Consumer Warranty Act — in 1970 and tightened it with the Tanner Consumer Protection Act in 1982. Every other state followed by the early 1990s. The basic deal: if a new vehicle has a substantial defect that the manufacturer can't fix after a reasonable number of attempts, they have to replace it or refund you.
Every state has its own version, with different cutoffs for what qualifies, how many repair attempts you need, and which vehicles are covered. The federal Magnuson-Moss Warranty Act (1975) sits behind all of them as a backup — if a manufacturer doesn't honor a written warranty, you can sue under federal law and recover attorney's fees if you win, which is why most lemon-law lawyers will take your case on contingency.
What to Do If You Bought a Lemon
Step 1: Document every visit. Repair orders, receipts, written complaints, and email threads. Date, mileage, what you reported, what they did, what they didn't. The case turns on the paper trail.
Step 2: Send written notice. A formal demand letter to the manufacturer (not just the dealer) by certified mail, return receipt. Most states require this before you can file. The letter triggers a final repair opportunity, usually 10–30 days.
Step 3: Check whether arbitration is required. Many manufacturers — and some state laws — make you go through a manufacturer-sponsored arbitration program (BBB Auto Line is the biggest) before suing. It's usually free and resolves in 40–60 days.
Step 4: Sue if arbitration fails. Under both state lemon laws and the federal Magnuson-Moss Act, the manufacturer pays your attorney's fees if you win — which is why most lemon lawyers work on contingency. You bring zero money to the table.
Step 5: Pick your remedy. Replacement vehicle of comparable value, or a full refund minus a reasonable usage allowance (typically calculated as miles driven before the first defect, divided by 120,000, times the purchase price).
How Illinois differs from federal law
Illinois has a New Vehicle Buyer Protection Act covering defective new vehicles:
- Illinois New Vehicle Buyer Protection Act (815 ILCS 380): Covers new motor vehicles purchased or leased in Illinois that develop substantial defects within the first 12 months or 12,000 miles, whichever comes first.
- Repair threshold: If the manufacturer or dealer cannot fix a substantial defect after 4 repair attempts, or the vehicle is out of service for 30 or more business days during the coverage period, the manufacturer must replace or repurchase the vehicle.
- Manufacturer obligations: The manufacturer must repurchase the vehicle at full purchase price (minus a reasonable allowance for use) or provide a comparable replacement vehicle. The consumer may choose which remedy.
- Attorney fees: If the manufacturer is found to have acted in bad faith in refusing to comply, the consumer may recover reasonable attorney fees and costs.
- Enforcement: Complaints may be filed through the Illinois Attorney General's office or the State's Attorney. The AG can investigate and pursue enforcement actions.
Additional steps in Illinois
Notify the manufacturer in writing of the defect and keep records of all repair attempts. File a complaint with the Illinois Attorney General Consumer Protection Division at (800) 386-5438. Contact the BBB AUTO LINE program if the manufacturer participates. Consult a lemon law attorney for private action.
What you should NOT do
Don't stop taking it in. You need a documented pattern. Skipping appointments out of frustration kills the case.
Don't get warranty repairs done at an independent mechanic. Only authorized dealer or manufacturer service counts toward your lemon-law clock.
Don't sign a quick settlement without checking the math. Manufacturers regularly offer 50–60% of what a court or arbitrator would award. Get the figure pressure-tested by a lemon-law attorney before you sign anything that includes a release.
Don't trade in or sell the car before filing. Once you no longer own it, your lemon-law rights generally die with the title transfer. File first, then dispose.
You shouldn't have to hire a lawyer to assert your rights.
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Generate your lemon law →This page is general legal information for Illinois, not legal advice for your specific situation. Laws change, and how a statute applies depends on facts we don't know. For advice on your matter, consult a licensed attorney in Illinois.