Lemon Law Demand Letter - Illinois
LEMON LAW DEMAND LETTER
STATE OF ILLINOIS — FORMAL NOTICE PURSUANT TO 815 ILCS 380/2
SENT VIA CERTIFIED MAIL, RETURN RECEIPT REQUESTED
OVERNIGHT DELIVERY — SIGNATURE REQUIRED
AND FIRST-CLASS MAIL
[__/__/____]
[MANUFACTURER LEGAL NAME]
ATTN: Customer Relations — Lemon Law / Legal Department
[MANUFACTURER ADDRESS]
[CITY, STATE ZIP]
[AUTHORIZED DEALER NAME]
ATTN: General Manager / Service Director
[DEALER ADDRESS]
[CITY, STATE ZIP]
Re: ILLINOIS LEMON LAW STATUTORY NOTICE AND DEMAND
Illinois New Vehicle Buyer Protection Act — 815 ILCS 380/1 et seq.
Consumer: [________________________________]
Vehicle: [____] [________________________________] [________________________________] ([TRIM])
VIN: [________________________________]
Date of Original Delivery: [__/__/____]
Current Odometer: [____] miles
Mileage at First Notice of Defect: [____] miles
Dear Sir or Madam:
This law firm represents [________________________________] ("Consumer" or "Client") in connection with a nonconforming vehicle that qualifies as a "lemon" under the Illinois New Vehicle Buyer Protection Act, 815 ILCS 380/1 et seq. ("Illinois Lemon Law").
THIS LETTER CONSTITUTES THE STATUTORY WRITTEN NOTICE REQUIRED BY 815 ILCS 380/2. Receipt of this notice triggers your right — and obligation — to attempt one final cure. If you elect to attempt a final repair, contact this office within ten (10) business days to schedule it. Failure to cure after this notice will entitle our Client to the full remedies set forth below.
I. ILLINOIS LEMON LAW — STATUTORY FRAMEWORK
A. Governing Statute
The Illinois New Vehicle Buyer Protection Act, 815 ILCS 380/1 et seq., provides a mechanism for consumers to obtain a refund or replacement vehicle when a new motor vehicle fails to conform to express warranties and the manufacturer cannot repair it within a reasonable number of attempts or a reasonable time.
B. Covered Vehicles — 815 ILCS 380/1
Illinois Lemon Law covers:
- New motor vehicles that have not been previously titled;
- Purchased or leased in Illinois;
- Primarily used for personal, family, or household purposes.
Excluded vehicles:
- Motorcycles;
- Recreational vehicles (RVs);
- Motor vehicles with a gross vehicle weight rating (GVWR) exceeding 8,000 pounds designed primarily for commercial use.
The vehicle that is the subject of this demand — a [____] [________________________________] [________________________________], VIN [________________________________] — falls within the covered class.
C. Coverage Window — 815 ILCS 380/2
Illinois Lemon Law protections apply during the earlier of:
- The first 12 months following original delivery to the consumer; or
- The first 12,000 miles of operation.
The vehicle was delivered on [__/__/____]. The 12-month window expires on [__/__/____]. The first documented complaint of the nonconformity was made on [__/__/____] at [____] miles — within the coverage period.
D. Presumption of Unreasonable Number of Attempts — 815 ILCS 380/3
Illinois law establishes a rebuttable presumption that a reasonable number of repair attempts have been made — and the manufacturer has failed to conform the vehicle to warranty — when either of the following thresholds is met during the coverage period:
Threshold 1 — Repair Attempts:
The same nonconformity has been subject to repair four (4) or more times without successful correction.
Illinois requires 4 attempts for the repair-attempt presumption. This is higher than many other states (which use 3 or 2 attempts) and is a critical distinction for clients tracking repair history.
Threshold 2 — Days Out of Service:
The vehicle has been out of service by reason of repair for 30 or more business days (not calendar days) during the coverage period. Business days are non-weekend, non-holiday days. Days out of service need not be consecutive.
Our Client has met one or both of these thresholds as documented in Section V below.
E. Manufacturer's Written Notice Requirement — 815 ILCS 380/2
Before filing suit or initiating arbitration, the consumer must provide the manufacturer with written notice of the need for repair of the nonconformity. The manufacturer is then entitled to one additional opportunity to cure. This letter constitutes that required written notice.
F. Mandatory Pre-Suit Arbitration — 815 ILCS 380/4
If the manufacturer maintains an informal dispute settlement procedure that has been certified by the Illinois Attorney General as complying with 16 C.F.R. Part 703 (FTC Informal Dispute Resolution standards), the consumer must submit the dispute to that procedure before bringing a civil action under Illinois Lemon Law.
The AG maintains a list of certified programs. Verify current certification status before filing suit.
☐ [MANUFACTURER] has an Illinois AG-certified arbitration program. Our Client will submit to that program but reserves all rights if the result is unsatisfactory or the process fails.
☐ [MANUFACTURER] does not have an Illinois AG-certified arbitration program. Pre-suit arbitration is therefore not required, and our Client may proceed directly to civil action if this final cure attempt fails.
II. VEHICLE INFORMATION
| Item | Details |
|---|---|
| Consumer / Lessee Name | [________________________________] |
| Co-Owner / Co-Lessee | [________________________________] |
| Year / Make / Model | [____] [________________________________] [________________________________] |
| Trim Level / Package | [________________________________] |
| Vehicle Identification Number | [________________________________] |
| Date of Original Delivery | [__/__/____] |
| Delivering Dealer | [________________________________] |
| Dealer Address | [________________________________] |
| Purchase Price / Capitalized Cost | $[____] |
| Down Payment / Cap Cost Reduction | $[____] |
| Outstanding Loan / Lease Balance | $[____] |
| Lienholder / Lessor | [________________________________] |
| Current Odometer | [____] miles |
| Odometer at First Repair Attempt | [____] miles |
| Transaction Type | ☐ Purchase ☐ Lease |
III. WARRANTY INFORMATION
A. Manufacturer's Express Warranties
| Warranty | Coverage | Status |
|---|---|---|
| Basic / Bumper-to-Bumper | [____] years / [____] miles | ☐ Active ☐ Expired |
| Powertrain | [____] years / [____] miles | ☐ Active ☐ Expired |
| Other: [____] | [____] years / [____] miles | ☐ Active ☐ Expired |
The nonconformity(ies) described herein arose during the applicable warranty period and remain unresolved despite repeated repair attempts.
IV. DESCRIPTION OF NONCONFORMITY
A. Primary Nonconformity
Under 815 ILCS 380/2, a "nonconformity" is a defect or condition that substantially impairs the use, value, or safety of the vehicle.
Primary Defect:
- Nature of Defect: [________________________________]
- Component(s) Affected: [________________________________]
- Date First Observed: [__/__/____] at [____] miles
- How Defect Manifests: [________________________________]
- Safety Impairment: ☐ Yes — [________________________________] ☐ No
- Use Impairment: [________________________________]
- Value Impairment: [________________________________]
- Applicable Warranty: ☐ Basic ☐ Powertrain ☐ Other: [____]
B. Additional Nonconformity(ies)
Defect 2 (if applicable):
- Nature: [________________________________]
- First Observed: [__/__/____] at [____] miles
- Impairment: [________________________________]
Defect 3 (if applicable):
- Nature: [________________________________]
- First Observed: [__/__/____] at [____] miles
- Impairment: [________________________________]
V. REPAIR HISTORY
Illinois Practice Note: Repair attempt records are the backbone of every Illinois Lemon Law claim. Retain all repair orders. Document that the same complaint was communicated each time. Count business days (Mon–Fri, excluding federal and Illinois state holidays) for the out-of-service calculation.
Repair Attempt #1
| Item | Details |
|---|---|
| Date Vehicle Checked In | [__/__/____] |
| Date Vehicle Returned | [__/__/____] |
| Business Days Out of Service | [____] |
| Odometer at Check-In | [____] miles |
| Authorized Dealer / Facility | [________________________________] |
| Repair Order Number | [________________________________] |
| Complaint As Written on RO | [________________________________] |
| Work Performed by Dealer | [________________________________] |
| Parts Replaced (if any) | [________________________________] |
| Outcome | ☐ Defect persists ☐ Defect temporarily resolved then recurred |
Repair Attempt #2
| Item | Details |
|---|---|
| Date Vehicle Checked In | [__/__/____] |
| Date Vehicle Returned | [__/__/____] |
| Business Days Out of Service | [____] |
| Odometer at Check-In | [____] miles |
| Authorized Dealer / Facility | [________________________________] |
| Repair Order Number | [________________________________] |
| Complaint As Written on RO | [________________________________] |
| Work Performed by Dealer | [________________________________] |
| Parts Replaced (if any) | [________________________________] |
| Outcome | ☐ Defect persists ☐ Defect temporarily resolved then recurred |
Repair Attempt #3
| Item | Details |
|---|---|
| Date Vehicle Checked In | [__/__/____] |
| Date Vehicle Returned | [__/__/____] |
| Business Days Out of Service | [____] |
| Odometer at Check-In | [____] miles |
| Authorized Dealer / Facility | [________________________________] |
| Repair Order Number | [________________________________] |
| Complaint As Written on RO | [________________________________] |
| Work Performed by Dealer | [________________________________] |
| Parts Replaced (if any) | [________________________________] |
| Outcome | ☐ Defect persists ☐ Defect temporarily resolved then recurred |
Repair Attempt #4
| Item | Details |
|---|---|
| Date Vehicle Checked In | [__/__/____] |
| Date Vehicle Returned | [__/__/____] |
| Business Days Out of Service | [____] |
| Odometer at Check-In | [____] miles |
| Authorized Dealer / Facility | [________________________________] |
| Repair Order Number | [________________________________] |
| Complaint As Written on RO | [________________________________] |
| Work Performed by Dealer | [________________________________] |
| Parts Replaced (if any) | [________________________________] |
| Outcome | ☐ Defect persists ☐ Defect temporarily resolved then recurred |
[Attach additional repair attempt tables as needed.]
Cumulative Repair Summary
| Nonconformity | Repair Attempts | Cumulative Business Days Out of Service |
|---|---|---|
| [Primary Defect] | [____] | [____] |
| [Secondary Defect] | [____] | [____] |
| TOTAL | [____] | [____] |
VI. LEGAL QUALIFICATION — ILLINOIS LEMON LAW PRESUMPTION MET
A. Repair Attempt Threshold
☐ 4-Attempt Presumption Satisfied (815 ILCS 380/3): The same nonconformity — [________________________________] — has been presented for repair [____] times, meeting or exceeding the statutory threshold of four (4) attempts.
B. Out-of-Service Threshold
☐ 30-Business-Day Presumption Satisfied (815 ILCS 380/3): The vehicle has been out of service due to repair for a cumulative total of [____] business days, meeting or exceeding the 30-business-day threshold. Calculation of business days excludes weekends and Illinois state and federal holidays.
C. Both Thresholds Met
☐ Both thresholds are independently satisfied, providing multiple bases for relief.
VII. ILLINOIS CONSUMER FRAUD AND DECEPTIVE BUSINESS PRACTICES ACT
In addition to the Illinois Lemon Law, our Client's claim is supported by the Illinois Consumer Fraud and Deceptive Business Practices Act ("CFDBPA"), 815 ILCS 505/1 et seq. Your company's conduct in selling/leasing a vehicle with known defects, failing to disclose material defects, and/or misrepresenting the vehicle's condition and the manufacturer's ability to repair it constitutes:
- Unfair acts or practices in the conduct of trade or commerce under 815 ILCS 505/2; and/or
- Deceptive acts or practices that are likely to mislead a reasonable consumer.
CFDBPA Remedies — 815 ILCS 505/10a:
- Actual damages (including the full purchase/lease price, interest, incidental and consequential damages);
- Punitive damages for willful or knowing violations;
- Reasonable attorney's fees and costs; and
- Injunctive relief.
Statute of Limitations: Three (3) years under 815 ILCS 505/10a(e). The CFDBPA claim therefore extends beyond the 12-month/12,000-mile Lemon Law window in appropriate circumstances.
VIII. MAGNUSON-MOSS WARRANTY ACT
Our Client also asserts claims under the Magnuson-Moss Warranty Act, 15 U.S.C. § 2301 et seq., which applies to written warranties on consumer products. Violations entitle the consumer to:
- Damages for breach of written warranty;
- Recovery of costs and expenses, including reasonable attorney's fees, under 15 U.S.C. § 2310(d)(2).
The federal claim may be pursued in addition to — and simultaneously with — the Illinois Lemon Law claim.
IX. DEMAND FOR RELIEF
Pursuant to 815 ILCS 380/2, we hereby demand one of the following forms of primary relief:
A. Option 1 — Full Refund / Repurchase
Under 815 ILCS 380/2(a), the manufacturer must refund:
| Item | Amount |
|---|---|
| Full Contract Price (purchase) or Total Lease Payments Made (lease) | $[____] |
| All Collateral Charges: Sales Tax | $[____] |
| All Collateral Charges: Title and Registration Fees | $[____] |
| All Collateral Charges: Finance Charges Paid | $[____] |
| All Collateral Charges: Other (dealer fees, extended warranty, etc.) | $[____] |
| Incidental Damages: Rental Car Costs | $[____] |
| Incidental Damages: Towing Charges | $[____] |
| Incidental Damages: Other Out-of-Pocket Losses | $[____] |
| Subtotal | $[____] |
| Less: Reasonable Allowance for Use | ($[____]) |
| TOTAL REFUND DEMANDED | $[____] |
Use Offset Calculation (815 ILCS 380/2):
Under Illinois law, the use offset is calculated based on the mileage accumulated on the vehicle prior to the consumer's first written notice of the nonconformity, divided by 100,000 miles, multiplied by the vehicle's purchase price.
- Miles at First Written Notice: [____]
- Purchase Price: $[____]
- Use Offset: ([____] ÷ 100,000) × $[____] = $[____]
Loan/Lease Payoff: The manufacturer must simultaneously pay off the outstanding balance of $[____] directly to the lienholder/lessor, [________________________________].
B. Option 2 — Replacement Vehicle
☐ In lieu of a refund, our Client will accept a comparable new motor vehicle under 815 ILCS 380/2(b), subject to a reasonable allowance for use.
Replacement Vehicle Requirements:
- Same or comparable make, model, and trim;
- New (not previously titled);
- All applicable taxes, fees, and transfer costs paid by manufacturer.
X. FINAL REPAIR OPPORTUNITY
This letter provides [________________________________] with the one additional repair opportunity required by 815 ILCS 380/2. To schedule a final repair attempt:
Contact the undersigned at [________________________________] within ten (10) business days of the date of this letter. Failure to contact us within that period or failure to successfully repair the nonconformity will result in our Client proceeding immediately to arbitration (if required) or civil litigation.
XI. DOCUMENT AND VEHICLE PRESERVATION
You are hereby directed to immediately preserve and not destroy all of the following:
- All warranty claims, repair orders, and dealer-manufacturer correspondence relating to this vehicle;
- All Technical Service Bulletins (TSBs) issued for this make/model/year addressing the subject defect;
- All engineering analyses, field reports, or internal communications regarding the defect;
- All records of customer complaints regarding the same or similar defect on comparable vehicles;
- The subject vehicle in its current condition — do not repair, alter, disassemble, or transfer title without our written consent;
- All records relating to any prior Illinois AG arbitration proceedings involving this vehicle or defect type.
Failure to preserve this evidence may constitute spoliation and subject you to adverse inference instructions and sanctions under Illinois law.
XII. RESPONSE DEADLINE
Respond in writing within fourteen (14) calendar days:
- Your position on whether the vehicle qualifies under 815 ILCS 380;
- Whether you elect to exercise the final cure opportunity and, if so, scheduling details;
- If no final cure is elected: your offer of repurchase or replacement;
- Contact information for your certified arbitration program (if applicable).
If we do not receive a satisfactory response:
☐ Our Client will submit this matter to the manufacturer's Illinois AG-certified arbitration program.
☐ Our Client will file suit in the appropriate Illinois Circuit Court without further notice.
☐ Our Client will file a complaint with the Illinois Attorney General, Consumer Protection Division.
XIII. CONCLUSION
Our Client purchased/leased this vehicle in good faith and has cooperated fully with your repair attempts. Despite [____] repair attempts and [____] business days without the use of their vehicle, the defect remains unresolved. Illinois law entitles our Client to a full refund or replacement.
We urge you to resolve this matter promptly. Further delay only increases the attorney's fees and costs our Client is entitled to recover.
Respectfully submitted,
[LAW FIRM NAME]
By: _________________________________
[ATTORNEY NAME]
Illinois ARDC No. [________________________________]
[ADDRESS]
[CITY, ILLINOIS ZIP]
[TELEPHONE]
[EMAIL]
Attorneys for [________________________________]
ENCLOSURES:
☐ Copies of all repair orders (Repair Attempts #1 through #[____])
☐ Copy of purchase or lease agreement
☐ Copy of manufacturer's warranty documentation
☐ Vehicle registration / title documents
☐ Photographs or video of defect manifestation
☐ Rental car and towing receipts (incidental damages)
☐ Prior correspondence with manufacturer and dealer
☐ Authority to represent
cc: [________________________________] (Consumer)
[________________________________] (Lienholder / Lessor, if applicable)
Illinois Attorney General — Consumer Protection Division, 100 W. Randolph St., Chicago, IL 60601
ILLINOIS LEMON LAW QUICK REFERENCE
| Element | Illinois Requirement |
|---|---|
| Statute | 815 ILCS 380/1 et seq. (New Vehicle Buyer Protection Act) |
| Coverage | New motor vehicles, not previously titled; purchased/leased in IL |
| Excluded | Motorcycles; RVs; commercial vehicles over 8,000 lbs GVWR |
| Coverage Window | 12 months OR 12,000 miles from delivery — whichever comes first |
| Repair Attempt Threshold | 4 attempts for same nonconformity (higher than many states) |
| Out-of-Service Threshold | 30 business days (not calendar days); non-consecutive days count |
| Written Notice Prerequisite | Yes — consumer must give manufacturer written notice before suit |
| Final Repair Opportunity | Yes — one additional attempt after receipt of written notice |
| Pre-Suit Arbitration | Required if manufacturer has Illinois AG-certified program (815 ILCS 380/4) |
| Remedy: Refund | Full contract price + collateral charges + incidentals − use offset |
| Remedy: Replacement | Comparable new vehicle + collateral charges − use offset |
| Use Offset Basis | Miles driven before first written notice of nonconformity |
| Attorney's Fees | Yes — to prevailing consumer (815 ILCS 380/5) |
| Additional State Claim | CFDBPA (815 ILCS 505) — actual + punitive + attorney fees; 3-yr SOL |
| Federal Claim | Magnuson-Moss, 15 U.S.C. § 2301 — attorney fees available |
ILLINOIS LEMON LAW PRACTICE NOTES
1. Four-Attempt Rule — Document Each Attempt Separately
Illinois requires four attempts, not the two or three required in many other states. Clients must be counseled to return the vehicle and obtain a new repair order for each visit — never accept verbal assurances or informal inspections without paper. Each repair order should describe the defect in the consumer's own words consistently.
2. Business Day Calculation Is Critical
The 30-business-day threshold is calculated in business days, not calendar days. Build a calendar and confirm which days are Illinois state holidays (as published by the Illinois Secretary of State's office). Weekends and state/federal holidays are excluded.
3. Coverage Window Expiration
Illinois's 12-month/12,000-mile window is one of the shorter coverage periods nationally. Time claims carefully. File or initiate arbitration before the window closes — courts have strictly enforced this deadline.
4. AG-Certified Arbitration Is a Jurisdictional Prerequisite
If the manufacturer maintains an AG-certified program (verify at illinoisattorneygeneral.gov), failure to use it before filing suit will result in dismissal. Confirm current certification status at the time of filing. The AG's list changes.
5. Use Offset — Mileage Is Frozen at First Written Notice
Illinois calculates the use offset based on miles driven before the first written notice to the manufacturer — not the first repair attempt. Sending the demand letter early (before additional miles accumulate) protects the consumer by minimizing the offset.
6. CFDBPA as a Parallel Track
The Illinois Consumer Fraud and Deceptive Business Practices Act (815 ILCS 505) has a 3-year statute of limitations and provides punitive damages not available under the Lemon Law. Consider pursuing CFDBPA claims simultaneously, especially where the dealer or manufacturer had knowledge of a systemic defect and failed to disclose it.
7. TSBs and Engineering Records
In discovery, demand all Technical Service Bulletins for the subject vehicle's model year. TSBs acknowledging a defect are powerful evidence supporting the claim that the manufacturer knew of the nonconformity.
SOURCES AND REFERENCES
- Illinois New Vehicle Buyer Protection Act, 815 ILCS 380/: https://www.ilga.gov/legislation/ilcs/ilcs3.asp?ActID=2259
- Illinois Consumer Fraud and Deceptive Business Practices Act, 815 ILCS 505/: https://www.ilga.gov/legislation/ilcs/ilcs3.asp?ActID=2356
- Illinois Attorney General — Consumer Protection / Lemon Law: https://illinoisattorneygeneral.gov/consumers/autofraud.html
- Illinois AG Certified Arbitration Programs: https://illinoisattorneygeneral.gov/
- Magnuson-Moss Warranty Act, 15 U.S.C. § 2301: https://www.law.cornell.edu/uscode/text/15/2301
- FTC Informal Dispute Resolution Rule, 16 C.F.R. Part 703: https://www.ecfr.gov/current/title-16/part-703
- Illinois Secretary of State — State Holidays: https://www.ilsos.gov/
This template is for informational purposes only and does not constitute legal advice. Illinois Lemon Law claims are time-sensitive and procedurally demanding. Consult a licensed Illinois attorney promptly — delays can forfeit coverage period rights.
About This Template
A demand letter is a formal written request to fix a problem or pay what is owed, sent before anyone files a lawsuit. It gives the other side a real chance to settle, creates a record of your attempt to resolve things, and in many cases (unpaid debts, insurance claims, broken contracts) starts a legally required response window. A well-written demand letter lays out what happened, what you want, and a deadline to act, which is often enough to get results without ever going to court.
Important Notice
This template is provided for informational purposes. It is not legal advice. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Last updated: April 2026