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Lemon Law Demand Letter — Colorado

In Colorado, a new vehicle is presumed a lemon if, within the earlier of the express warranty term or 1 year after original delivery, it has had four repair attempts for the same nonconformity, or the vehicle out of service a cumulative 30 or more business days. Below is a ready-to-edit lemon law demand letter with Colorado's statute — the Colorado Lemon Law — already cited; add your vehicle and repair history, then send it to the manufacturer.

Colorado at a glance

  • Coverage window: the earlier of the express warranty term or 1 year after original delivery.
  • The tests: four repair attempts for the same nonconformity, or the vehicle out of service a cumulative 30 or more business days.
  • What this letter does: statutorily required for the presumption to apply — written notification by certified mail stating that repair attempts have been made and the defect remains; the manufacturer then has 10 business days from receipt to cure it.
  • Where it escalates: the manufacturer’s certified informal dispute settlement program if it has one, or a civil lawsuit, where the court awards reasonable attorney’s fees to the prevailing side.
  • Colorado’s statute is explicit: the presumption of a reasonable number of repair attempts does not apply at all unless the manufacturer received prior written notification by certified mail.

Lemon Law Demand Letter

Copy the letter below into the editor, replace the text in [brackets] with your details, and PostPal will print and mail it for you.

Subject: Lemon Law Notice — Demand for Repurchase or Replacement
[Your Name]
[Your Address]
[City, Colorado ZIP Code]
[Your Phone Number]
[Your Email]

[Date]

[Manufacturer Name] — Customer Relations / Owner Relations
[Manufacturer Address — listed in your warranty booklet or owner's manual]

RE: Written notification under the Colorado Lemon Law (C.R.S. § 42-10-103)
Vehicle: [Year] [Make] [Model], VIN [VIN]

Dear [Manufacturer Name] Owner Relations,

I am the [owner / lessee] of a [Year] [Make] [Model], VIN [VIN], purchased [or leased] new on [Purchase Date] from [Dealer Name] in [City], Colorado.

Since delivery, the vehicle has exhibited the following defect: [describe the defect and how it impairs the vehicle's use, value, or safety]. The vehicle has been presented to your authorized dealer for repair of this defect on the following occasions:

• [Date] — [Repair order #] — [What was done]
• [Date] — [Repair order #] — [What was done]
• [Date] — [Repair order #] — [What was done]

In total, the defect has been subject to [number] repair attempts, and the vehicle has been out of service for [number] days. The defect remains uncorrected.

Under the Colorado Lemon Law (C.R.S. §§ 42-10-101 to 42-10-107), a manufacturer that cannot conform a new motor vehicle to its express warranty after a reasonable number of repair attempts must replace it with a comparable vehicle or refund the purchase price. A reasonable number of attempts is presumed where the same nonconformity has been subject to repair four or more times, or the vehicle has been out of service a cumulative 30 or more business days, within the earlier of the express warranty term or 1 year after delivery — but only once the manufacturer has received prior written notification by certified mail that repair attempts have been made and the defect remains, and been given 10 business days to cure it.

This letter is my written notification by certified mail that the defect described above has been the subject of repair attempts and remains uncorrected. You have 10 business days from receipt of this notification to cure it. If it is not corrected, I intend to pursue replacement or a refund through your certified dispute settlement program, if you have one, or in court, without further notice to you.

Copies of my repair orders are available on request. Please respond in writing to the address above.

Sincerely,
[Your Signature]
[Your Printed Name]

What your lemon law demand letter must include

  • Your full name, address, and contact details
  • The vehicle’s year, make, model, and VIN, plus the purchase/lease date and selling dealer
  • A clear description of the defect and how it impairs the vehicle’s use, value, or safety
  • The full repair history: dates, repair-order numbers, and days out of service (Colorado looks for four repair attempts for the same nonconformity, or the vehicle out of service a cumulative 30 or more business days)
  • What you are demanding — a repurchase (refund) or a comparable replacement vehicle
  • Proof of the mailing method — Colorado requires this notice to go by certified mail

Frequently asked questions

When does a car qualify as a lemon in Colorado?

The defect must substantially impair the vehicle's use, value, or safety, and the manufacturer must have had a reasonable chance to fix it — in Colorado that is presumed within the earlier of the express warranty term or 1 year after original delivery, after four repair attempts for the same nonconformity, or the vehicle out of service a cumulative 30 or more business days. Keep every repair order; the paper trail is the claim.

Do I need to use an official form?

No official form, but Colorado’s law is strict about the mailing method: the legal presumption that you’ve given the manufacturer a reasonable number of repair attempts does not apply at all unless this notification was sent by certified mail.

Who do I send the letter to — the dealer or the manufacturer?

The manufacturer. Lemon law obligations run against the vehicle manufacturer, not the selling dealer — send it to the manufacturer’s customer/owner relations address listed in your warranty booklet or owner’s manual (PostPal’s where-to-mail directory also lists head-office addresses for major automakers like Ford, General Motors, and Tesla). Keep dealing with the dealer for the repairs themselves.

What happens after I send it?

The manufacturer has 10 business days from receiving your certified-mail notification to cure the defect. If it doesn’t, and it maintains a certified dispute settlement program, you may need to try that first; either way, if you end up in court and prevail, Colorado’s law entitles you to reasonable attorney’s fees.

More lemon law demand letter templates for other states

Facts verified against official sources on September 3, 2026: law.justia.com, codes.findlaw.com.

This template is provided for convenience only. It is not legal advice and does not create a lawyer-client relationship. Court limits and rules change — confirm anything time-sensitive on the official page, and consult a qualified legal professional for advice specific to your situation.