General information about Illinois law, not advice about your situation. For that, consult a licensed Illinois attorney.
There is no 120,000 in 815 ILCS 380. Not 120,000 miles, not $120,000, not anywhere in the statute. 815 ILCS 380 is the New Vehicle Buyer Protection Act — Illinois's lemon law — and it runs Sections 1 through 8. The numbers actually in it are 8,000 pounds, 1 year, 12,000 miles, 4 repair attempts, 30 business days, and 18 months. If you searched that combination, you were almost certainly after one of two very different things: whether a car at 120,000 miles can be lemon-lawed (it can't), or whether a used car sold at 120,000 miles has any Illinois protection (it does — under a different statute). Both answers are below.
Does 815 ILCS 380 contain a 120,000-mile or $120,000 threshold?
No. The Act identifies itself in its first line — "This Act shall be known and may be cited as the New Vehicle Buyer Protection Act," per 815 ILCS 380/1 — and nothing in Sections 1 through 8 sets a purchase-price ceiling or a 120,000-mile cutoff. The single mileage figure in the statute is 12,000 miles: 815 ILCS 380/2 defines the "statutory warranty period" as "the period of one year or 12,000 miles, whichever occurs first after the date of the delivery of a new vehicle to the consumer who purchased or leased it." That closing clause matters as much as the numbers: the period runs from your delivery date, so a car that already had an owner starts you outside the Act entirely. If "120,000" came from a search suggestion or a forum post, treat it as a stray zero.
What vehicles and buyers does the Act actually cover?
New passenger cars and light vehicles bought — or leased for at least a year — by an individual. Under 815 ILCS 380/2, a "new vehicle" means a passenger car as defined in the Illinois Vehicle Code, a Second Division motor vehicle under 8,000 pounds, a fire department vehicle, or a recreational vehicle — with a qualified carve-out for camping trailers and travel trailers, so read the definition itself before assuming a towable is in or out. "Passenger car" itself is defined at 625 ILCS 5/1-157 as a First Division motor vehicle, including a multipurpose passenger vehicle, "designed for carrying not more than 10 persons." A "consumer" is "an individual who purchases or leases for a period of at least one year a new vehicle from the seller" (plus fire departments and fire protection districts) — so a lease shorter than a year falls outside the definition. And the Act applies only to model years following its effective date, per 815 ILCS 380/8.
What actually triggers the Illinois lemon law?
Four repair attempts on the same defect, or 30 business days out of service — plus written notice to the manufacturer. 815 ILCS 380/3 presumes a "reasonable number of attempts" when, inside the statutory warranty period, either the same nonconformity "has been subject to repair by the seller, its agents or authorized dealers… 4 or more times, and such nonconformity continues to exist," or the vehicle "has been out of service by reason of repair of nonconformities for a total of 30 or more business days." The defect has to be a nonconformity — a warranty failure that "substantially impairs the use, market value or safety" of the vehicle, so a rattle that merely annoys you doesn't qualify. Two traps live in the same section: the presumption doesn't apply unless the manufacturer "has received prior direct written notification from or on behalf of the consumer, and has an opportunity to correct the alleged defect" — notice to the dealer alone isn't enough — and it's an affirmative defense that the problem came from "abuse, neglect or unauthorized modifications or alterations." The Illinois Attorney General describes the same test in its consumer guidance.
What do you get, and how long do you have?
A replacement or refund at the manufacturer's election, and 18 months to file. Under 815 ILCS 380/3, the manufacturer must either provide "a new vehicle of like model line, if available, or otherwise a comparable motor vehicle," or refund "the full purchase price or lease cost of the new vehicle, including all collateral charges, less a reasonable allowance for consumer use." That use allowance is capped: it covers wear and tear before your first report of the defect and during periods the car wasn't in the shop — the manufacturer can't bill you for miles the car spent on a lift. The clock is short. 815 ILCS 380/6 requires any action to be "commenced within eighteen months following the date of original delivery." If the manufacturer runs a qualifying informal dispute settlement procedure and told you about it in writing, you must use it first, and 815 ILCS 380/4 extends the limitations period by the days your dispute sat there. Note also that 815 ILCS 380/5 bars a separate UCC claim once you settle under the Act — an election you make once.
Your car has 120,000 miles and keeps breaking. What's left?
Not the lemon law — but three other statutes. You're years past the one-year/12,000-mile window and the 18-month deadline in 815 ILCS 380/6. What remains: (1) if a written warranty is still in force, the federal Magnuson-Moss Warranty Act at 15 U.S.C. § 2310(d) lets a consumer damaged by a warrantor's failure to comply sue, and a consumer who "finally prevails" may recover costs and expenses "including attorneys' fees based on actual time expended"; (2) the Illinois Consumer Fraud Act at 815 ILCS 505/10a gives any person who suffers actual damage a private action within 3 years of accrual, with fees available to the prevailing party; (3) a UCC breach-of-warranty claim under 810 ILCS 5/2-725, which must be brought within 4 years of the breach — and the breach clock starts at delivery, not at discovery, unless the warranty explicitly extends to future performance.
Bought a used car at around 120,000 miles? This is the statute you want
Probably — because the mileage cutoff here is 150,000 miles, not 120,000. Under 815 ILCS 505/2L, a used vehicle sold by a dealer carries a limited powertrain warranty running until "the 15th calendar day after delivery" or 500 miles, whichever is earlier, covering the engine block, transmission, drive shaft, rear axle and their internal parts. Mileage is only one of the section's exclusions, and this is where people get burned: §2L carves out vehicles with "more than 150,000 miles at the time of sale" and vehicles rated 8,000 pounds or more, alongside further categories of vehicle and sale listed in the same section. Read that exclusion list against your own purchase rather than assuming mileage decides it. On mileage alone, a car handed to you at 120,000 miles is inside the covered range. The other catches: you pay half of each of the first 2 repairs, capped at $100 per repair, total seller liability is capped at the purchase price, and §2L puts a short notice deadline on you, measured in days once the warranty period ends — read the notice sentence in the section text and calendar it the day you sign, because missing it is the cheapest way to lose the coverage. Separately, the FTC Used Car Rule at 16 C.F.R. § 455.2 requires a Buyers Guide displayed on the vehicle before sale, and 16 C.F.R. § 455.3 makes that window form part of the contract — it "overrides any contrary provisions in the contract of sale." Dig out your copy before you accept an "as-is" answer.
Before you hire a lawyer: put the demand in writing
Every route above starts with a dated letter. The lemon law's presumption literally requires "prior direct written notification" to the manufacturer under 815 ILCS 380/3; the used-car powertrain warranty in 815 ILCS 505/2L carries its own short notice deadline once the 15-day/500-mile period ends; and the seller was already supposed to hand you a written statement of these rights at delivery under 815 ILCS 380/7. A letter that recites repair-order dates, names the defect, and cites the section you're invoking moves a claim faster than a phone call — and it creates the record a court needs later. Our free letter-template library has consumer-defect and warranty demand letters you can adapt.
Frequently asked questions
Does 815 ILCS 380 have a 120,000-mile or $120,000 limit? No. No figure of 120,000 — miles or dollars — appears anywhere in the New Vehicle Buyer Protection Act. The only mileage number in it is the 12,000-mile statutory warranty period defined in 815 ILCS 380/2.
What is the mileage limit for the Illinois lemon law? Coverage runs for the statutory warranty period — one year or 12,000 miles after delivery, whichever occurs first, per 815 ILCS 380/2.
My Illinois car has 120,000 miles and keeps breaking. Can I use the lemon law? Not 815 ILCS 380 — you are long past its one-year/12,000-mile window and the 18-month filing deadline in 815 ILCS 380/6. A still-in-force written warranty, the Illinois Consumer Fraud Act, or a UCC breach-of-warranty claim under 810 ILCS 5/2-725 are the remaining routes.
I bought a used car with about 120,000 miles and it broke down. Do I have anything? Possibly. The mileage cutoff in 815 ILCS 505/2L is 150,000 miles, not 120,000, so mileage alone does not put a 120,000-mile dealer sale outside the 15-day/500-mile coverage. Mileage is only one of the section's exclusions, though — vehicles rated 8,000 pounds or more are carved out too, alongside further categories listed in the same section, so read the full exclusion list against your own purchase.
How many repair attempts trigger the Illinois lemon law? Four or more repair attempts on the same defect, or 30 or more business days out of service, both measured inside the statutory warranty period — and only if you gave the manufacturer prior direct written notice, per 815 ILCS 380/3.
How long do I have to sue under the Illinois lemon law? Eighteen months from the date the vehicle was originally delivered to you under 815 ILCS 380/6, extended by the number of days your dispute sat in the manufacturer's informal dispute settlement procedure under 815 ILCS 380/4.
Can I recover attorney's fees under the Illinois lemon law? Not under 815 ILCS 380 itself. The remedy the Act specifies in 815 ILCS 380/3 is a replacement vehicle or a refund — it contains no fee-shifting provision. Fee recovery exists under 15 U.S.C. § 2310(d) and 815 ILCS 505/10a instead.