Consumer Protection · Lemon Law
Lemon Law in Colorado
How many repair attempts and days out of service before Colorado presumes your vehicle is a lemon, and whether used cars are covered.
presumption trigger (same defect)
Do I meet the Colorado lemon presumption?
Enter your repairs and downtime. This checks the presumption; it is not a legal verdict.
This checklist is educational, not a legal verdict. Every state writes these numbers as a rebuttable presumption: hitting them shifts the burden to the manufacturer, and the manufacturer can still rebut it. Keep every repair order, send any required written notice, and consult a lawyer about your specific facts. This is legal information, not legal advice.
How the presumption works in Colorado
The prongs that shift the burden to the manufacturer.
Senate Bill 24-192 rewrote Colorado’s thresholds for vehicles sold or leased on or after August 7, 2024. The counts dropped from 4 attempts and 30 days to 3 attempts and 24 business days, the window doubled to 2 years / 24,000 miles, and a 2-attempt safety-defect track was added. Older vehicles are governed by the prior version.
Every state, Colorado included, writes these thresholds as a rebuttable presumption. Reaching them shifts the burden onto the manufacturer to prove your vehicle is not a lemon; it does not mean you automatically win. You may also qualify with fewer attempts if a "reasonable number" of repairs is shown some other way, and the manufacturer can rebut the presumption. This is legal information, not legal advice.
Used cars & leased vehicles
Which of the three coverage categories Colorado falls in.
The full picture, with the source
Every figure, and where it comes from.
| Same-defect attempts | 3 |
| Serious-safety attempts | 2 |
| Days out of service | 24 business days |
| Coverage window | 2 years / 24,000 miles from delivery (whichever comes first) |
| Used cars | New vehicles only |
| Leased vehicles | Covered |
| Statute | C.R.S. §42-10-103 (as amended by SB 24-192) |
What Colorado car buyers get wrong
Colorado overhauled its lemon law with Senate Bill 24-192, and the new thresholds apply to vehicles sold or leased on or after August 7, 2024. Under the amended C.R.S. §42-10-103, the state presumes a lemon after the same defect is repaired 3 or more times, after 2 or more attempts on a "safety-based nonconformity," or after the vehicle is out of service for 24 or more business days, all within 2 years or 24,000 miles from delivery. The safety track is defined tightly: a defect that "is likely to cause death or serious bodily injury if the vehicle is driven, or creates a risk of fire or explosion." One procedural step drives the whole thing: the consumer must send written notice by certified mail and give the manufacturer 10 business days to cure before the presumption can be invoked, and that cure attempt counts as one of the repairs. These numbers are presumption triggers that shift the burden to the manufacturer, not an automatic win. The law reaches new vehicles sold or leased in Colorado; used cars and motor homes are excluded.
Common questions
How many repair attempts make a car a lemon in Colorado?
Under the 2024 amendments, Colorado presumes a lemon after the same defect is repaired 3 or more times, 2 or more times for a safety-based defect, or after 24 or more business days out of service, within 2 years or 24,000 miles. These are presumption triggers that shift the burden to the manufacturer.
What counts as a safety-based defect under the Colorado lemon law?
The statute defines it as a defect that is likely to cause death or serious bodily injury if the vehicle is driven, or that creates a risk of fire or explosion. Only 2 repair attempts are needed for that track instead of 3.
Do I have to notify the manufacturer before the Colorado presumption applies?
Yes. You must send written notice by certified mail stating that the defect remains after repair attempts, then give the manufacturer 10 business days to cure. That final attempt counts as one repair attempt toward the presumption.
Does Colorado’s lemon law cover used cars?
No. The law covers vehicles sold or leased new to a consumer in Colorado. There is no separate used-car lemon law, and motor homes are also excluded. Leased new vehicles are covered.
Not legal advicePlainStatute provides plain-language summaries of public law for general information only. This is not legal advice. Statutes change; always confirm current requirements with the official source linked above before acting.