Documenting Evidence for a Colorado Lemon Law Claim

Documentation is the single most important factor in any Colorado Lemon Law case. The tight 1-year Rights Period plus business-day OOS counting make meticulous documentation especially important.

Required documents

1. Repair orders — every one

For each visit:

• Date of visit.
• Odometer reading.
• Customer complaint as written by the service advisor.
• Technician findings — the cause section.
• Parts and labor performed.
• Total days vehicle was held (intake date through release date — note BUSINESS days, not calendar days).
• Altitude / route note for mountain-stress defects.

2. Business-day OOS calendar

Build a chronological table:

Visit	Intake date	Release date	Business days	Cumulative
1	Day 1 (Mon)	Day 5 (Fri)	5	5
2	Day 12 (Mon)	Day 19 (Wed)	8	13
3	Day 26 (Mon)	Day 35 (Wed)	8	21
4	Day 42 (Mon)	Day 51 (Wed)	8	29
5	Day 58 (Mon)	Day 59 (Tue)	2	31 (THRESHOLD MET)

Business days = Monday through Friday, excluding state and federal holidays. Weekends and holidays don’t count.

3. Written notice with proof of delivery

• The § 42-10-104 written notice itself.
• Certified-mail receipt.
• Return receipt.
• Manufacturer’s response (if any).

4. Purchase / lease documents

• Buyer’s order / sales contract.
• Finance contract.
• Lease agreement (if applicable).
• Manufacturer’s warranty booklet.

5. Photos and videos

• Date-stamped photos of visible defects.
• Videos of intermittent problems.
• Photos of fluid leaks, tire wear, body damage caused by failure.

6. Pattern documentation

• TSBs for your VIN — search NHTSA’s TSB database.
• Recall notices — check nhtsa.gov/recalls.
• Manufacturer service campaigns.
• Reports of similar defects in your model.

7. Mountain altitude / climate documentation (Colorado-specific)

For altitude-related defects (brakes, turbocharger, diesel emissions, EV range):

• Elevation profile of recent driving.
• Mountain passes used (Eisenhower Tunnel, Vail Pass, Wolf Creek, Loveland, Independence Pass).
• Weather conditions at time of symptom.
• Sustained-grade descent durations.

How to organize for BBB Auto Line

Attach to BBB Auto Line intake form:

• Repair-order log (chronological, with business-day OOS calculation).
• Written § 42-10-104 notice + return receipt.
• Photos / videos.
• TSBs / recalls applicable to your VIN.

How to organize for court action

Litigation requires:

• Verified complaint with exhibits.
• Discovery responses.
• Expert witness materials.
• Recall and TSB analysis.

What weakens documentation

• Missing repair orders.
• “No problem found” visits without follow-up.
• Independent-mechanic visits.
• Vague defect descriptions.
• Skipping the written notice step.

What strengthens documentation

• Pattern across visits.
• TSBs match.
• Recall overlap.
• Multiple service advisors see the issue.
• Service-manager escalation documented.
• Mountain altitude / climate correlation documented where applicable.

Bottom line

Build the paper record from day one. The Colorado consumer who walks into BBB Auto Line or court with a clean, chronological binder showing business-day OOS calculation, written notice, and (where applicable) mountain altitude correlation wins quickly. The tight 1-year window means starting documentation immediately is critical.

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