Colorado Lemon Law: How It Works for New Vehicles

You bought a new car, truck, or SUV in Colorado, and it has spent more time at the dealership's service department than in your driveway. The same warning light keeps coming back. The same noise returns a week after every repair. At some point you start wondering whether the law gives you a way out.

It does. The Colorado lemon law requires a manufacturer to replace a defective new vehicle or buy it back when the problem can't be fixed after a reasonable number of tries. In 2024 the state rewrote large parts of that law, and the changes were good news for drivers: more time, fewer repair attempts, and a clear formula for refunds. This guide explains how the Colorado lemon law works today, which vehicles it covers, and what you need to do to make a claim.

Here's the quick version:

• Colorado's lemon law covers new passenger vehicles for the first two years or 24,000 miles, whichever comes first.
• A vehicle is presumed a lemon after three failed repairs of the same defect, two failed repairs of a safety defect, or 24 business days in the shop.
• You must notify the manufacturer by certified mail and give it one final chance to fix the problem.
• You have 30 months from delivery to file, and repair time doesn't count against that clock.
• A qualifying vehicle gets a refund or a comparable replacement, minus a mileage allowance set by formula.

What Is the Colorado Lemon Law?

Colorado's lemon law is the state's motor vehicle warranty law. It applies when a new vehicle has a defect covered by the manufacturer's warranty, the defect seriously affects the vehicle, and the manufacturer or its dealers can't fix it. When those conditions are met, the manufacturer has to make the owner whole with either a comparable replacement vehicle or a refund.

The Statute Behind It

The law is found at Colorado Revised Statutes § 42-10-101 and the sections that follow it. Those sections define who and what is covered, set the repair-attempt rules, require written notice to the manufacturer, and spell out the deadline for filing. The full text of the 2024 changes is available in Senate Bill 24-192 on the Colorado General Assembly's website.

What Changed in 2024

Before 2024, Colorado's lemon law was considered one of the weakest in the country. Protection lasted only one year, a vehicle needed four failed repairs or 30 business days in the shop, and owners had very little time to file. Senate Bill 24-192 took effect on August 7, 2024, and the Colorado Attorney General's public advisory summarizes the main improvements:

• Coverage now lasts two years or 24,000 miles, whichever comes first.
• Three failed repairs of the same defect, or two for a safety defect, now trigger the lemon presumption.
• The out-of-service threshold dropped from 30 to 24 business days.
• Owners now have 30 months from delivery to file, and time in the shop doesn't count against that clock.
• The law now includes a formula for how much a manufacturer can deduct from a refund for your use of the vehicle.
• Bought-back lemons must be clearly labeled before they are resold.

Which Version Applies to Your Vehicle

The updated rules apply to vehicles sold or leased on or after August 7, 2024. If your vehicle was purchased before that date, the older and much shorter rules apply, and in most cases those deadlines have already passed. If you bought or leased in the last two years, you are almost certainly under the new law.

Which Vehicles Does Colorado's Lemon Law Cover?

The lemon law is written for everyday passenger vehicles. Knowing whether your vehicle fits the definition is the first question to answer, because a claim that falls outside the statute has to be built on a different law.

Cars, Trucks, SUVs, and Vans

The statute covers new, self-propelled private passenger vehicles sold in Colorado that are designed mainly for public highways and carry no more than ten people. That includes sedans, SUVs, crossovers, pickup trucks, and passenger vans. Electric and hybrid vehicles are covered the same way gas vehicles are, and EV defects such as battery, charging, and software failures are judged by the same repair-attempt rules.

Leased Vehicles

Leasing is common in Colorado, and lessees often assume the lemon law is only for buyers. The 2024 law applies to vehicles sold or leased on or after its effective date, and its refund formula refers to the lessee's cost of the vehicle. If you lease a vehicle that keeps going back to the shop, have your lease agreement and repair orders reviewed before you assume you have no claim.

Vehicles Used by Small Businesses

The old law protected only vehicles used for personal, family, or household purposes. According to the Attorney General, the 2024 update extends protection to vehicles that certain small businesses use for both business and personal driving. If you own a small business and your truck does double duty, it may now qualify.

What the Lemon Law Excludes

Some vehicles are left out by name. The statute does not cover:

• Motor homes
• Vehicles designed to travel on three or fewer wheels, such as motorcycles
• Vehicles that have been modified for commercial use
• Used vehicles (with the exception of the buyback disclosure rules covered below)

Being excluded from the state lemon law does not mean you are out of options. Motor homes, motorcycles, boats, and off-road vehicles usually come with a written warranty, and the federal Magnuson-Moss Warranty Act gives owners the right to enforce that warranty. Used cars have their own set of remedies, which we cover in our guide to the Colorado lemon law for used cars.

When Is a New Vehicle Presumed a Lemon in Colorado?

The heart of any lemon law claim is the question of whether the manufacturer had a reasonable chance to fix the problem and failed. Colorado answers that question with a set of presumptions. If your vehicle meets one of them, the law presumes the manufacturer had enough attempts.

The Defect Must Be Serious

Not every flaw makes a lemon. The defect must substantially impair the use and market value of the vehicle, or its safety. A rattle in the dashboard probably won't qualify. A transmission that slips, an engine that stalls, brakes that fail, or an electrical fault that disables the vehicle usually will. The 2024 law defines a safety-based defect as one likely to cause death or serious bodily injury if the vehicle is driven, or one that creates a risk of fire or explosion.

Manufacturers have two defenses written into the statute, C.R.S. § 42-10-104. They can argue the defect doesn't substantially impair the vehicle, or that it was caused by abuse, neglect, or unauthorized modifications by the owner. Keeping up with scheduled maintenance, and keeping the receipts, takes the second argument off the table.

The Two-Year or 24,000-Mile Window

The defect must be reported to the manufacturer or one of its authorized dealers within the first two years after delivery or the first 24,000 miles, whichever comes first. The repairs themselves can continue after that window closes, as long as the problem was reported inside it.

The Repair and Downtime Thresholds

Within that window, a reasonable number of repair attempts is presumed when any one of these is true:

The business-day count is cumulative, which means separate visits add together. A vehicle that spent eight business days in the shop on three different occasions has reached 24, even if no single visit was long. These periods are extended if repairs are unavailable because of events like war, a strike, a fire, a flood, or another natural disaster.

How to Make a Colorado Lemon Law Claim

Colorado's process has specific steps, and skipping one can weaken a strong case. Most of the work comes down to documentation and timing.

"Michael explained the process that he would undertake for me regarding my new vehicle purchase that went south for me within a week of the purchase… True to his word, he executed on my behalf from day one until the job was thoroughly completed."

Johnson Family ★★★★★

Keep Every Repair Order

Your repair orders are the most important evidence you have. Each one should show the date you brought the vehicle in, the mileage, the problem you described, what the shop did, and the date you got the vehicle back. Read each order before you leave the dealership. If the description of your complaint is vague or missing, ask the service advisor to correct it. Keep copies of emails, texts, rental receipts, and towing bills too.

Send Written Notice by Certified Mail

The lemon presumptions don't apply against the manufacturer until it has received written notice by certified mail. The notice must state that one or more repair attempts have already been made and that the problem is still there. Note that the notice goes to the manufacturer, not just the dealer. Your owner's manual or warranty booklet usually lists the address.

Allow the Final Repair Attempt

Once the manufacturer receives your notice, it gets one more opportunity to fix the vehicle, and the 2024 law limits that opportunity to ten business days. That final attempt counts toward the repair totals. If it fails, the claim can move forward.

Use the Manufacturer's Dispute Program If It Has One

Many manufacturers run an informal dispute settlement program, often through a service such as BBB AUTO LINE. Under C.R.S. § 42-10-106, if the manufacturer's program meets federal standards, you must go through it before you can demand a refund or replacement under the lemon law. The good news is that the filing deadline is paused while that process is underway.

Colorado's 30-Month Deadline

Deadlines decide more lemon law cases than most people realize. Colorado's new deadline is far more generous than the old one, but it is still a deadline.

How the 30 Months Are Counted

A lemon law lawsuit must be filed within 30 months after the vehicle was first delivered to a consumer. That clock starts on the delivery date, not the date the problem began. If you bought a vehicle in March 2025, your filing window generally runs to September 2027.

Time That Doesn't Count

The 30-month clock pauses while your vehicle is unavailable because it is being repaired. It also pauses while you are in the manufacturer's dispute settlement program. Those pauses help, but they depend on records. Repair orders that show drop-off and pick-up dates are what prove how much time to add back.

Why Waiting Still Hurts

Even with 30 months, waiting has costs. Every month you keep driving adds miles, and miles reduce your refund under the use-allowance formula. Repair records are easier to collect while they are recent, and the two-year or 24,000-mile window for reporting the defect can close well before the 30-month filing deadline does.

What You Can Recover: Refund or Replacement

When a vehicle qualifies, the manufacturer chooses between two remedies. Either one should leave you in a vehicle that works or with your money back.

A Full Refund

A refund covers the full purchase price, including sales tax, license fees, registration fees, and similar government charges. If you financed the vehicle, the refund is split between you and the lender according to each party's interest, so your loan is paid off as part of the buyback.

How the Use Allowance Is Calculated

The manufacturer can deduct a reasonable allowance for the miles you drove before the problem appeared. Before 2024 there was no formula, which left room for lowball offers. Now the law sets one. The allowance equals the total contract price multiplied by a fraction: the miles driven before you first brought the vehicle in for the defect, plus any miles driven later while it wasn't in the shop, divided by 100,000.

Miles driven while the vehicle was in the shop, or before you ever owned it, are not part of the calculation. Checking the manufacturer's numbers against this formula is one of the simplest ways to spot an unfair offer.

"We were dealing with a manufacturer who played all types of games to the very end… Michael went to bat with the manufacturer to get us a fair resolution that was in line with what we really wanted."

Matthew Desaulniers ★★★★★

A Comparable Replacement

Instead of a refund, the manufacturer may give you a comparable replacement vehicle. Some owners prefer this, especially when they like the model and believe the defect was limited to their particular vehicle. Before accepting, confirm that the replacement truly is comparable in trim, options, and value.

What Happens to a Colorado Lemon After a Buyback

The 2024 law also protects the next person in line. Lemons that are bought back often return to the market, and Colorado now requires that buyers be told.

The "Lemon Law Buyback" Decal

Before a returned vehicle is resold in Colorado, the manufacturer or dealer must notify the state and attach a decal reading "Lemon Law Buyback" to the driver's door pillar. That decal must not be removed. Anyone selling the vehicle who knows, or should have known, that it is a buyback must clearly disclose it before the sale.

Title Branding

The law also requires a "Lemon Law Buyback" brand on the vehicle's title. Under the bill, the state's title system applies that brand on and after January 1, 2027, so the history follows the vehicle from owner to owner.

Inspection or a Seven-Day Return

A dealer selling a lemon law buyback to a retail customer must either allow the buyer's own inspector to check the vehicle first or offer a seven-day free-look period with a refund of all money paid, less shipping. The dealer must disclose that right in writing before the sale.

Why Work With a Colorado Lemon Law Attorney

You can file a lemon law claim on your own. Many people find, though, that the process is harder than it looks, and small mistakes can cost a valid claim.

Manufacturers Have Experts on Their Side

Automakers handle lemon law claims every day, and they have staff whose job is to keep payouts low. An attorney who focuses on lemon law knows the statute, knows how manufacturers respond, and can measure any offer against what the law actually allows.

"Outstanding Team! Don't let these big automakers push us around! New cars are the best and only way to hold them accountable."

Steve Kirchner ★★★★★

The Paperwork Has to Be Right

Certified-mail notice, the final repair attempt, the dispute program, the use-allowance math, and the 30-month deadline each have their own rules. Handling them correctly from the start keeps a strong case from falling apart on a technicality.

Help Anywhere in Colorado

Goodman Lemon Law has a Colorado office in Loveland and represents clients across the state, from Fort Collins and Greeley to Denver, Aurora, Colorado Springs, and Pueblo. Most cases can be handled without an in-person meeting. Learn more about our Colorado lemon law attorney services.

Frequently Asked Questions About the Colorado Lemon Law

Does Colorado have a lemon law?

Yes. Colorado's lemon law is found at C.R.S. § 42-10-101 and the sections that follow. It covers new passenger vehicles with serious warranty defects that the manufacturer can't fix after a reasonable number of attempts. The law was significantly strengthened for vehicles sold or leased on or after August 7, 2024.

How many repair attempts make a car a lemon in Colorado?

Three failed repairs of the same defect within the first two years or 24,000 miles create a presumption that the vehicle is a lemon. For a safety-based defect, two failed repairs are enough. A vehicle that has been out of service for 24 or more business days in that period also qualifies.

How long do I have to file a lemon law claim in Colorado?

You have 30 months from the date the vehicle was first delivered to a consumer. Time the vehicle spends unavailable because of repairs, and time spent in the manufacturer's dispute program, does not count against that period.

Does the Colorado lemon law cover used cars?

No. Colorado's lemon law does not apply to used vehicles, except for the rules requiring disclosure of lemon law buybacks. Used car buyers may still have remedies under a remaining factory warranty, a dealer warranty, or federal warranty law.

Are motorcycles and motor homes covered?

No. The statute excludes motor homes and vehicles with three or fewer wheels. Owners of those vehicles may still have a claim under the written warranty and the federal Magnuson-Moss Warranty Act.

Do I have to pay for a Colorado lemon law attorney?

Goodman Lemon Law offers a free case evaluation, and many lemon law cases are handled at no out-of-pocket cost to the client. We will explain exactly how fees work in your case before you decide to move forward.

Get a Free Colorado Lemon Law Case Evaluation

If your new vehicle keeps going back to the shop for the same problem, you don't have to keep paying for a car you can't rely on. Send us your repair orders, and we will tell you where you stand under Colorado's lemon law and federal warranty law. The evaluation is free, and there is no obligation to hire us.

Call our Colorado office at 720-792-9296 or contact Goodman Lemon Law online to schedule your free case evaluation.

This article is general information, not legal advice. Reading it or contacting us does not create an attorney-client relationship.