State lemon law · checked October 23, 2026
Verified against the statute / official state publicationC.R.S. §§42-10-101–42-10-110, as amended by SB 24-192 (eff. Aug. 7, 2024)
| Presumption window | SB 24-192 doubled the old window: defects must now be reported within 2 years / 24,000 miles. |
|---|---|
| Same defect | 3+ repair attempts |
| Safety defect | 2+ attempt(s) — A serious safety defect: 2 attempts under the 2024 law (older guides still print the pre-2024 numbers). |
| Days out of service | 24+ business days — 24 or more BUSINESS days out of service — lowered from 30 by SB 24-192. |
The presumption is the set of numbers that shifts the burden to the manufacturer. A claim can exist outside the presumption — it is a shortcut, not the whole road. Read why.
SB 24-192 formula: contract price × eligible miles ÷ 100,000, where eligible miles = miles before you first presented the vehicle for the defect + miles driven in later periods when it was NOT out of service. Because the odometer only moves when you drive, eligible miles are normally your current odometer reading (§42-10-103(4)).
Send written notice by certified mail before remedies open; the manufacturer then has 10 business days to cure.
Dispute route: Colorado tolls the filing clock during arbitration; a qualified manufacturer's program may have to be used first.
Attorney's fees: Colorado provides attorney's fees to a prevailing consumer.
Suit must be commenced within 6 months after the warranty expires or within 30 months after original delivery, whichever is earlier (§42-10-107, as amended) — tolled while the vehicle is in arbitration or unavailable for repair.
| New vehicles | Covered |
|---|---|
| Leased vehicles | Not covered |
| Used vehicles | Covered in defined situations — see notes |
| Motorcycles | Covered |
| RV / motor home | Not covered |
Your repair-log tracker, the Colorado notice letter, the buyback worksheet on Colorado's formula, and your deadline calendar.
Checked October 23, 2026. Laws change; if your claim is close to a line, verify the current statute or ask a lawyer in Colorado. This page is information, not legal advice.