Colorado Lemon Law: Your Complete Legal Guide

Understanding Colorado's Updated Lemon Law
Colorado's lemon law, officially known as the Motor Vehicle Repair Act, is codified in Colorado Revised Statutes § 42-10-101 through § 42-10-109. The 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, expanded which vehicles are covered, extended filing deadlines, 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. These changes apply to vehicles originally delivered to consumers 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 expanded coverage to include small business vehicles.
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
- Small business vehicles: Vehicles used for both personal and business purposes (added by SB24-192)
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
- Vehicles with a gross vehicle weight rating over 10,000 pounds
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
| Condition | Requirement | Details |
|---|---|---|
| Repair Attempts (Same Defect) | 3 or more attempts | Same nonconformity must substantially impair use and market value |
| Repair Attempts (Safety Defect) | 2 or more attempts | Defect that is likely to cause death, serious injury, or risk of fire/explosion |
| Days Out of Service | 24 or more business days | Vehicle unavailable due to repair of one or more nonconformities |
| Coverage Period | Within 2 years or 24,000 miles | Whichever comes first from date of original delivery |
What Changed in 2024
The table below compares the old and new lemon law presumption requirements.
| Requirement | Before SB24-192 | After SB24-192 (Current Law) |
|---|---|---|
| Repair Attempts (Same Defect) | 4 or more | 3 or more |
| Safety Defect Repair Attempts | No separate provision | 2 or more |
| Days Out of Service | 30 business days | 24 business days |
| Coverage Period | 1 year or warranty term | 2 years or 24,000 miles |
| Statute of Limitations | 6 months after warranty or 1 year | 30 months from delivery |
| Small Business Vehicles | Not covered | Covered |
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 and market value 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 vs. Replacement
When a vehicle qualifies as a lemon under Colorado law, the consumer is entitled to either a replacement vehicle or a full refund.
Option 1: Replacement Vehicle
If the consumer receives a replacement, the manufacturer must provide:
- A comparable new motor vehicle
- All applicable express warranties
- Reimbursement for incidental costs including registration and taxes
Option 2: Refund (Buyback)
If the consumer receives a refund, the manufacturer must provide:
- Full purchase price: Including sales tax and fees
- License and registration fees: All DMV costs
- Collateral charges: Dealer fees and similar costs
- Finance charges: Interest and loan fees paid
- Incidental damages: Towing, rental cars, and related costs
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.
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)
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
| Defense | Manufacturer's Argument | Consumer's Counter |
|---|---|---|
| Consumer abuse or neglect | Defect caused by improper use or maintenance failure | Provide maintenance records showing proper care |
| Unauthorized modifications | Aftermarket parts or modifications caused the problem | Show defect existed before modifications or is unrelated |
| Defect not substantial | Problem does not substantially impair use and market value | Document impact on daily use and resale value |
| Insufficient repair opportunities | Manufacturer was not given adequate chance to repair | Provide complete repair history meeting the presumption |
| Accident damage | Problem resulted from collision or external event | Expert testimony showing defect is manufacturing related |
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.
| Deadline | Timeframe | Details |
|---|---|---|
| Reporting Period | Within 2 years or 24,000 miles | Nonconformities must be reported within this period, whichever comes first |
| Presumption Period | Within 2 years or 24,000 miles | Repair attempts must occur within this same timeframe |
| Statute of Limitations | 30 months from delivery | Time to file a legal claim; tolled during arbitration and repair periods |
| Written Notice | Before pursuing remedies | Must notify manufacturer before seeking refund or replacement |
| Arbitration | Before court action | Required if manufacturer has a qualifying informal dispute settlement program |
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
Sources and References
- Colorado Revised Statutes Title 42, Article 10(leg.colorado.gov).gov
- Senate Bill 24-192: Motor Vehicle Lemon Law(leg.colorado.gov).gov
- Colorado Attorney General: Updated Lemon Law Consumer Advisory (August 2024)(coag.gov).gov
- Colorado Attorney General: File a Consumer Complaint(coag.gov).gov
- Colorado AG Public Advisory: Lemon Law (August 6, 2024)(coag.gov).gov
- Colorado Department of Revenue: Auto Industry Public & Consumers(sbg.colorado.gov).gov