Colorado Lemon Law (2026): How to Qualify & Get a Refund

Colorado's lemon law, codified at C.R.S. § 42-10-101 through § 42-10-110, covers new private passenger vehicles and triggers the lemon presumption when the same defect persists after three repair attempts, two attempts for a safety defect, or 24 business days out of service within two years or 24,000 miles.

Understanding Colorado's Updated Lemon Law

Colorado's lemon law has no short title of its own. It is codified in Colorado Revised Statutes § 42-10-101 through § 42-10-110, and § 42-10-101 is simply the article's definitions section. Do not confuse it with the separately named Motor Vehicle Repair Act of 1977 at C.R.S. § 42-9-101, which is a different statute governing repair facilities, written estimates, and auto parts recyclers. The lemon law provides important consumer protections for buyers and lessees of new motor vehicles that fail to conform to the manufacturer's express warranty.

On August 7, 2024, Senate Bill 24-192 took effect and brought the most significant changes to Colorado's lemon law in decades. The update lowered the threshold for a vehicle to qualify as a lemon, created a separate safety-based nonconformity track, extended the filing deadline, added a manufacturer cure period, and introduced new protections for buyers of lemon buyback vehicles.

The Colorado Attorney General's office issued a public advisory encouraging consumers to understand their new rights under the updated law. Section 11 of the bill applies these changes to motor vehicles sold or leased on or after the effective date.

What Vehicles Are Covered

Colorado's lemon law covers specific types of vehicles purchased or leased in the state. The 2024 update did not widen the definition of a covered vehicle. It went the other way on one point, adding an express exclusion for a motor vehicle that has been modified for commercial use.

Covered Vehicle Types

• New private passenger vehicles: Cars, sedans, coupes, and similar automobiles
• Trucks: Pickup trucks used primarily for personal purposes
• Vans: Passenger vans and minivans
• SUVs: Sport utility vehicles
• Leased vehicles: New vehicles obtained through lease agreements
• Demonstrator vehicles: Demo vehicles sold as new with warranty

Coverage turns on how the vehicle is used. Under C.R.S. § 42-10-101(1), a "consumer" is the purchaser, other than for resale, of a motor vehicle that is used for personal, family, or household purposes.

Vehicles Not Covered

• Used vehicles (separate protections exist for lemon buyback vehicles)
• Motorcycles and vehicles with three or fewer wheels
• Motor homes as defined in C.R.S. § 42-1-102
• Vehicles modified for commercial use (exclusion added by SB24-192)
• Vehicles designed to carry more than ten people (Colorado's lemon law only covers private passenger vehicles, including pickups and vans, designed to carry ten or fewer people)

Colorado's Lemon Law Presumption (Updated 2024)

Colorado law creates a rebuttable presumption that a reasonable number of repair attempts have been made when certain conditions occur within the coverage period. SB24-192 lowered these thresholds to make it easier for consumers to qualify.

The Lemon Law Presumption Applies When

Before this presumption can be invoked, the consumer must send the manufacturer written notice by certified mail stating that repair attempts have been made and the defect remains. SB24-192 added a new precondition: the manufacturer must then be given 10 business days after receiving that notice to attempt to cure the defect before the presumption applies. That cure attempt counts as one of the repair attempts toward the total (C.R.S. § 42-10-103(2)(c)).

What Changed in 2024

The table below compares the old and new lemon law presumption requirements.

Important: Colorado uses business days for the out-of-service calculation. Business days typically exclude Saturdays, Sundays, and state holidays.

What Qualifies as a "Nonconformity"?

A nonconformity is any defect or condition that substantially impairs the use, market value, or safety of the motor vehicle. Examples include:

• Engine failures or persistent performance problems
• Transmission defects affecting drivability
• Brake system malfunctions
• Steering problems creating safety hazards
• Electrical failures affecting critical systems
• Heating and defrost system failures (particularly important in Colorado's climate)
• Four-wheel drive or all-wheel drive system defects
• Suspension problems affecting handling

Safety-Based Nonconformities

SB24-192 introduced the concept of a "safety-based nonconformity," defined as a defect that results in a condition likely to cause death or serious bodily injury if the vehicle is driven, or that creates a risk of fire or explosion. These defects receive a lower threshold of only two repair attempts before the lemon presumption applies.

Consumer Remedies: Refund or Replacement

When a vehicle qualifies as a lemon under Colorado law, the manufacturer must provide either a comparable replacement vehicle or a full refund. Under C.R.S. § 42-10-103, the manufacturer chooses which remedy to provide. The statute uses the phrase "at the manufacturer's option," so the manufacturer may prefer whichever remedy costs less in a given situation. Consumers should document their preference in writing when notifying the manufacturer.

Option 1: Replacement Vehicle

If the manufacturer chooses replacement, § 42-10-103(1) requires it to replace the vehicle with a comparable motor vehicle. The statute does not spell out any additional reimbursement on the replacement path, so anything beyond the comparable vehicle itself is a matter of negotiation with the manufacturer.

Option 2: Refund (Buyback)

If the manufacturer chooses a refund, § 42-10-103(1) requires it to accept return of the vehicle and refund the full purchase price, expressly including:

• Sales tax
• License fees
• Registration fees
• Any similar governmental charges

The statute then subtracts a reasonable allowance for the consumer's use, calculated with the formula below. Refunds are made to the consumer and the lienholder, if any, as their interests appear.

Colorado's statute stops there. Unlike some other states' lemon laws, article 10 does not separately require the manufacturer to pay collateral charges such as dealer fees, finance charges and loan interest, or incidental costs such as towing and rental cars. Those items are not part of the statutory refund in Colorado.

Updated Usage Deduction Formula

The manufacturer may deduct a reasonable allowance for the consumer's use of the vehicle. SB24-192 clarified the formula to ensure fair and predictable calculations.

The usage deduction is calculated as:

Usage Deduction = (Total Contract Price) x (Eligible Miles / 100,000)

"Eligible Miles" includes only:

• Miles traveled before the consumer first presented the vehicle for repair of the nonconformity
• Miles traveled during any subsequent period when the vehicle was not out of service by reason of repair

This formula protects consumers by excluding miles the vehicle spent sitting in a repair shop from the usage calculation. For example, on a $40,000 vehicle where the consumer drove 5,000 eligible miles, the usage deduction would be $2,000.

The Magnuson-Moss Warranty Act: Federal Backstop

Colorado consumers may also have rights under the federal Magnuson-Moss Warranty Act, 15 U.S.C. § 2301 et seq., regardless of whether the state lemon law applies. Magnuson-Moss allows consumers to sue in federal court for breach of a written or implied warranty on any consumer product, including vehicles. If you prevail, the manufacturer pays your attorney's fees under 15 U.S.C. § 2310(d)(2). The federal law provides an independent remedy that can be pursued alongside a Colorado state lemon law claim, and is particularly useful if your vehicle does not quite meet the state thresholds but the manufacturer has clearly breached the written warranty.

How to File a Lemon Law Claim in Colorado

Filing a successful lemon law claim in Colorado requires proper documentation and following specific procedures.

Step 1: Document Everything

• Keep all repair orders and invoices
• Record dates your vehicle entered and left the repair shop
• Document the specific problems and symptoms
• Save all correspondence with the dealer and manufacturer
• Photograph or video defects when possible
• Keep receipts for rental cars and towing

Step 2: Allow Reasonable Repair Attempts

Give the manufacturer or its authorized dealer adequate opportunity to repair the vehicle. You need at least three attempts for the same problem, two attempts for a safety-related defect, or 24 business days out of service to invoke the presumption.

Step 3: Provide Written Notice to Manufacturer

Before pursuing remedies, send written notice to the manufacturer by certified mail that includes:

• Your name and contact information
• Vehicle information (year, make, model, VIN)
• Description of the nonconformity
• Repair history summary with dates
• Your requested remedy (replacement or refund)

Once the manufacturer receives this notice, it has 10 business days to attempt to cure the defect before the repair-attempt presumption can be counted against it (C.R.S. § 42-10-103(2)(c), added by SB24-192). That cure attempt itself counts as one of the required repair attempts.

Step 4: Participate in Arbitration if Required

Under C.R.S. § 42-10-106, if the manufacturer has established an informal dispute settlement procedure that complies with federal regulations (16 C.F.R. Part 703), consumers must use that procedure before pursuing refund or replacement remedies. The 30-month statute of limitations is tolled (paused) during the arbitration process.

Not all manufacturers maintain qualifying arbitration programs. If no qualifying program exists, you can proceed directly to court.

Step 5: File a Lawsuit if Necessary

If arbitration does not resolve the dispute or no arbitration program exists, you may file a lawsuit in Colorado state court. The court shall award reasonable attorney fees to the prevailing party in any lemon law action.

Filing Deadline

You must file your lemon law claim within 30 months of the original delivery of the vehicle to you. This deadline is tolled during any period when:

• You have submitted to manufacturer arbitration under § 42-10-106
• The vehicle is out of service by reason of repair

Manufacturer Defenses

Manufacturers may raise several defenses to avoid lemon law liability in Colorado.

Common Manufacturer Defenses

Lemon Buyback Vehicle Protections

SB24-192 added new C.R.S. § 42-10-108 and § 42-10-109, creating protections for buyers of vehicles that were previously repurchased under the lemon law.

Disclosure Requirements

Dealers selling lemon buyback vehicles must:

• Affix a permanent decal reading "Lemon Law Buyback" on the driver's door B pillar (the body post to which the driver's door latches)
• Ensure the vehicle's title indicates its lemon law buyback status
• Provide conspicuous written disclosure of the vehicle's history before sale
• Never remove the lemon law buyback decal

Third-Party Inspection and Free-Look Period

Dealers selling lemon buyback vehicles must offer one of the following:

• Third-party inspection: Allow the buyer's agent to inspect the vehicle before purchase. The agent must be qualified to use any inspection equipment and must not interfere with normal dealer operations.
• 7-day free-look period: The purchaser may return the vehicle within seven days and receive a full refund of all money paid, less shipping costs.

These protections help consumers make informed decisions about purchasing vehicles with lemon law histories.

Used Vehicle Protections

Colorado's lemon law does not cover used vehicles (other than the lemon buyback provisions above). However, used car buyers have other potential protections.

Available Protections for Used Vehicles

• Remaining manufacturer warranty: Used vehicles still under warranty may have warranty claims
• Dealer warranties: Some dealers offer limited warranties on used vehicles
• Implied warranty of merchantability: Unless properly disclaimed, vehicles must be fit for ordinary use
• Federal Magnuson-Moss Warranty Act: Provides remedies for warranty breaches on products with written warranties
• Colorado Consumer Protection Act: Protects against dealer fraud, misrepresentation, and unfair business practices

Title Branding

Colorado requires that vehicles repurchased under the lemon law have their titles branded to notify future buyers of the vehicle's history. Under the 2024 update, this branding requirement is reinforced by the physical decal requirement.

Statute of Limitations and Key Deadlines

Colorado's lemon law has specific timeframes that consumers must follow.

Filing a Complaint with the Colorado Attorney General

Consumers who believe a manufacturer or dealer has violated the lemon law can file a complaint with the Colorado Attorney General's Consumer Protection Division. While the AG's office does not typically represent individual consumers in lemon law cases, complaints help the office identify patterns of violations and take enforcement action.

You can file a complaint online at coag.gov/file-complaint or by calling the consumer protection hotline.

More Colorado Laws

• Colorado Car Accident Laws

Frequently Asked Questions

How many repair attempts does Colorado require before a vehicle qualifies as a lemon?

Under the updated law effective August 7, 2024, Colorado requires three or more repair attempts for the same substantial defect, or two or more attempts for a safety-based defect (one likely to cause death, serious injury, or risk of fire or explosion). Alternatively, the vehicle qualifies if it has been out of service for 24 or more business days. These conditions must occur within two years or 24,000 miles of delivery, whichever comes first.

Who decides whether I get a refund or replacement in Colorado?

Under C.R.S. § 42-10-103, the manufacturer decides whether to offer a refund or a comparable replacement vehicle. The statute uses the phrase 'at the manufacturer's option,' meaning the manufacturer may choose whichever remedy it prefers. Consumers can negotiate, but the statute gives the initial election to the manufacturer rather than the buyer.

Does Colorado's lemon law cover used cars?

No, Colorado's lemon law only covers new motor vehicles. However, used vehicles may be protected under the original manufacturer's warranty if still in effect, the federal Magnuson-Moss Warranty Act, or the Colorado Consumer Protection Act. The 2024 update also added specific protections for buyers of used lemon buyback vehicles, including disclosure requirements and a 7-day free-look period.

What is the statute of limitations for filing a Colorado lemon law claim?

You must file your claim within 30 months of the original delivery of the vehicle. This deadline is tolled (paused) during any period when you are participating in manufacturer arbitration or when the vehicle is out of service for repair. The previous law allowed only six months after warranty expiration or one year from delivery.

Does Colorado's lemon law cover a vehicle used for business?

Generally no. C.R.S. § 42-10-101(1) defines a 'consumer' as the purchaser, other than for resale, of a motor vehicle that is used for personal, family, or household purposes, and SB24-192 added an exclusion in § 42-10-101(2) for any motor vehicle that has been modified for commercial use. The 2024 update did not add coverage for small business or dual-use vehicles. A business owner whose vehicle falls outside article 10 may still have a claim under the manufacturer's written warranty or the federal Magnuson-Moss Warranty Act.

How is the usage deduction calculated on a Colorado lemon law refund?

The usage deduction equals the total contract price multiplied by the eligible miles driven, divided by 100,000. Eligible miles include only miles driven before the first repair attempt and miles driven during periods when the vehicle was not in the shop for repairs. Miles accumulated while the vehicle was out of service do not count against you.

What is a safety-based nonconformity under Colorado's lemon law?

A safety-based nonconformity is a defect that results in a condition likely to cause death or serious bodily injury if the vehicle is driven, or that creates a risk of fire or explosion. Safety-based defects qualify for the lemon presumption after only two failed repair attempts, compared to three for non-safety defects.