Colorado Motor Vehicle Repair Act: Estimates, Limits, and Penalties

The Colorado Motor Vehicle Repair Act requires any shop working on your car to get your written consent before starting, give you a written estimate of the total cost, stay within a narrow cushion above that estimate, and hand you an itemized invoice when the job is done. The law caps storage fees, lets you cancel repairs mid-job, and classifies violations as deceptive trade practices, which means you can sue for up to three times your damages plus attorney fees. It covers most passenger vehicles and light trucks but leaves out motorcycles, farm equipment, and trucks over 8,500 pounds gross vehicle weight.¹

Written Consent and a Written Estimate Come First

No shop in Colorado can do any work on your vehicle without your written consent. There is no small-job exception. The one carve-out is for cars that were towed in or dropped off after hours: in that situation, the shop can perform up to $100 of labor and parts without written consent, and only after reaching you by phone to communicate an oral estimate.²

Alongside your consent, the shop must give you a written estimate of the total repair cost and an expected completion date. You get a copy. The estimate is the ceiling the rest of the law builds on, so keep it.

You can waive the estimate, but the law makes it hard to do by accident. The waiver has to carry your signature and the date beneath a bold-print line reading: “I DO NOT WISH TO RECEIVE ANY ESTIMATE, EITHER WRITTEN OR ORAL, TO WHICH I AM ENTITLED BY LAW, BEFORE REPAIRS ARE AUTHORIZED.” Signing that line does not authorize the repairs themselves; that still takes a separate statement.² For most people, there is no good reason to sign it.

The 10 Percent or $25 Overage Limit

A shop can go slightly over its estimate, but not far. If the final labor-and-parts total would exceed the estimate by more than 10 percent or $25, whichever is less, the shop must stop work and get your oral or written approval before continuing. If it doesn’t, you can take the car back by paying the estimate plus that small buffer, and the shop forfeits any lien on the excess charges.³

In numbers: on an $800 estimate, the shop can bill up to $825 without calling, because $25 is less than 10 percent of $800. On a $200 estimate, the buffer is $20, because 10 percent of $200 beats $25. Anything beyond the buffer that wasn’t approved is not your obligation.

What Your Final Invoice Must Show

When you pick up the car, the shop must give you a detailed invoice. The statute lists what belongs on it:

Every part added or replaced, listed by name and identifying number, marked as new, used, reconditioned, or rebuilt, with the charge for each.
Total labor charge, the name or employee number of each mechanic who worked on the car, and which stage of the repair each person handled.
Any other charges itemized separately, including storage, service and handling fees, and taxes.

The shop must keep the original or a legible copy of your invoice for at least three years.⁴ If a dispute surfaces later and the shop can’t produce its copy, that failure cuts against the shop.

The part-by-part breakdown is your check against quiet substitutions. If the estimate promised new parts and the invoice lists rebuilt ones, the invoice has to say so, and the gap between the two documents is worth questioning before you pay.

Storage Fees and the Three-Day Grace Period

A shop cannot start charging storage the moment repairs are finished. You get at least three business days after the shop notifies you the car is ready. Saturdays, Sundays, legal holidays, and days the shop is closed don’t count toward those three days.³

Even after the grace period, storage charges are only enforceable if you signed a separate written agreement specifically for storage, with a bold-print notice explaining the policy. It can’t be tucked into the repair authorization. The shop also has to record the date, time, and method it used to tell you the car was ready.³ A storage line on your bill without that separate signed agreement is not something you have to pay.

Canceling Repairs Before They Are Finished

You can cancel repairs you previously authorized at any point before the work is complete. The shop can bill you for the work it has already done, but only up to the portion of the original estimate that covers that work.³

You choose the condition the car comes back in. The shop can reassemble it to substantially the same condition as when you dropped it off, or you can take it in whatever state of disassembly it is in. If you ask for reassembly, the shop has three days to complete it. This matters most when a shop has pulled an engine or transmission apart for diagnosis and you decide not to go ahead with the repair.

Vehicles the Act Does Not Cover

The Act applies to most passenger cars and light trucks. It does not cover motorcycles, farm equipment, or trucks with a gross vehicle weight above 8,500 pounds.¹ If your vehicle falls into one of those categories, the consent, estimate, invoice, and overage rules above are not your legal baseline, and whatever protections you have come from your contract with the shop or from general consumer law.

Penalties and Your Right to Sue

A violation of the Motor Vehicle Repair Act is automatically a deceptive trade practice under Colorado’s Consumer Protection Act. That triggers two separate tracks: government enforcement, and private lawsuits brought by the consumer.

Government Penalties

The state can impose civil penalties of up to $20,000 per violation, and each transaction or affected consumer counts as its own violation. When the victim is an elderly person, the cap rises to $50,000 per violation. Violating a court order or injunction entered under the Consumer Protection Act adds another $10,000 per violation.⁵ The Colorado Attorney General and local district attorneys can investigate and bring enforcement actions.

Private Lawsuits

You don’t have to wait on the government. Any consumer harmed by a deceptive trade practice can sue. If you win, you recover the greater of your actual damages with prejudgment interest or $500. If you can show by clear and convincing evidence that the shop acted in bad faith, the court can triple your actual damages. You also recover attorney fees and court costs. Under the statute, bad faith means fraudulent, willful, knowing, or intentional conduct that causes injury.⁶

The treble-damages provision is what makes smaller claims worth pursuing. A $2,000 intentional overcharge could expose the shop to $6,000 plus your lawyer’s bill.

Where to File a Complaint

Start with the shop. Talk to the owner or manager, bring your estimate and invoice, and make it clear you know the rules the Act sets. A fair number of disputes end at that step.

If that goes nowhere, document everything: estimate, invoice, texts, emails, and photos of the work. Complaints against independent repair shops go to the district attorney’s office in the county where the shop operates; that office has jurisdiction over illegal conduct by automotive repair facilities. If the repair was done at a licensed dealership, you can file with the Colorado Department of Revenue’s Auto Industry Division using complaint form DR 2122.⁷⁸

A government complaint and a private lawsuit are independent. A complaint may trigger an investigation, but it won’t get your money back. For reimbursement, treble damages, or attorney fees, you need a civil action under the Consumer Protection Act.

1
Justia. Colorado Code 42-9-102 – Definitions
2
Justia. Colorado Code 42-9-104 – When Consent and Estimate Required
3
Justia. Colorado Code 42-9-106 – Amounts Over Estimate, Storage Charges, Cancellation of Authorized Repairs
4
Justia. Colorado Code 42-9-108 – Invoice
5
FindLaw. Colorado Code 6-1-112 – Civil Penalties
6
Justia. Colorado Code 6-1-113 – Civil Actions
7
Department of Revenue. Filing a Complaint – Auto Industry Division
8
Colorado Department of Revenue. Auto Industry Division Complaint Form