Colorado · Auto-Repair Consumer Rights
Colorado Auto Repair Laws & How to Sue a Mechanic
If a Colorado shop overcharged you, did unauthorized work, or botched a repair, state law is on your side. Here are the statutes that protect you, your small-claims limit, and free tools to get a refund or fix — no lawyer needed.
What does Colorado law say about your repair?
See what Colorado’s auto repair laws say, side by side with what happened to you. Free.
Look up Colorado repair laws →Statutes that protect Colorado consumers
No written estimate for labor and parts before work
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-104(2)(a)(I); remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (failure to provide written estimate before repairs)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) to the prevailing party under C.R.S. 42-9-113.
No authorization before proceeding with repairs or further repairs
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-104 and C.R.S. 42-9-105; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (repairs performed without customer consent)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Case law: Colorado Court of Appeals (2025) affirmed a jury's CMVRA-violation verdict: the shop billed ~$6,000 over its ~$6,000 estimate (~$12,040 total) without first obtaining the customer's consent to exceed it; the $7,611 CMVRA award was trebled to $22,833 (plus a separate affirmed negligence award). On appeal the shop challenged only CMVRA coverage (repairs vs. modifications; motor vehicle) and lost. The customer's later agreement to pay to retrieve the truck did not cure the unauthorized-overage violation; 42-9-113 makes treble mandatory.
Exceeded the authorized estimate without the consumer's consent
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-105 and C.R.S. 42-9-106; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (charges in excess of estimate)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113; facility may not lien the vehicle for the unauthorized excess.
Case law: Colorado Court of Appeals (2025) affirmed a jury's CMVRA-violation verdict: the shop billed ~$6,000 over its ~$6,000 estimate (~$12,040 total) without first obtaining the customer's consent to exceed it; the $7,611 CMVRA award was trebled to $22,833 (plus a separate affirmed negligence award). On appeal the shop challenged only CMVRA coverage (repairs vs. modifications; motor vehicle) and lost. The customer's later agreement to pay to retrieve the truck did not cure the unauthorized-overage violation; 42-9-113 makes treble mandatory.
Failed to provide an invoice / documentation for services performed
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-108; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (failure to furnish itemized invoice)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Failed to return replaced parts though requested at the work order
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-109; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (failure to return replaced parts)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Failed to properly repair the vehicle (defective workmanship)
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-111 (false claim repairs performed) and C.R.S. 42-9-108.7 (warranty); remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act / breach of express repair warranty
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113; common-law damages for negligent repair.
Failed to perform the agreed-upon repairs or services
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-111; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (charging for repairs not performed)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Caused additional damage to the vehicle
- Common law negligence / bailment (Colorado); see also Colorado Consumer Protection Act, C.R.S. 6-1-105; remedy C.R.S. 6-1-113 — Negligence / breach of bailment duty (and CCPA where deception involved)
Possible remedy: Actual damages (repair cost / diminution in value) under common law; if CCPA applies, the greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus attorney fees under C.R.S. 6-1-113.
Failed to properly diagnose the problem
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-111 (misrepresenting need for repairs); remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act / common-law negligence
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113; common-law damages for negligent diagnosis.
Misrepresented the quality or origin of the parts used
- Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(f) and (1)(g); remedy C.R.S. 6-1-113 — Deceptive trade practice (misrepresenting goods as new/original or of a particular standard or grade)
Possible remedy: The greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus reasonable attorney fees and costs under C.R.S. 6-1-113.
Made repairs that were not authorized or not needed
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-105 and C.R.S. 42-9-111; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (unauthorized or unnecessary repairs)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Case law: Colorado Court of Appeals (2025) affirmed a jury's CMVRA-violation verdict: the shop billed ~$6,000 over its ~$6,000 estimate (~$12,040 total) without first obtaining the customer's consent to exceed it; the $7,611 CMVRA award was trebled to $22,833 (plus a separate affirmed negligence award). On appeal the shop challenged only CMVRA coverage (repairs vs. modifications; motor vehicle) and lost. The customer's later agreement to pay to retrieve the truck did not cure the unauthorized-overage violation; 42-9-113 makes treble mandatory.
Charged excessive fees for the services or repairs
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-106 (amounts over estimate) and C.R.S. 42-9-111; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (overcharging beyond authorized estimate)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Case law: Colorado Court of Appeals (2025) affirmed a jury's CMVRA-violation verdict: the shop billed ~$6,000 over its ~$6,000 estimate (~$12,040 total) without first obtaining the customer's consent to exceed it; the $7,611 CMVRA award was trebled to $22,833 (plus a separate affirmed negligence award). On appeal the shop challenged only CMVRA coverage (repairs vs. modifications; motor vehicle) and lost. The customer's later agreement to pay to retrieve the truck did not cure the unauthorized-overage violation; 42-9-113 makes treble mandatory.
Falsely advertised services or prices
- Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(e) and (1)(l); remedy C.R.S. 6-1-113 — Deceptive trade practice (false advertising of services or prices)
Possible remedy: The greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus reasonable attorney fees and costs under C.R.S. 6-1-113.
Bait-and-switch tactic
- Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(i); remedy C.R.S. 6-1-113 — Deceptive trade practice (advertising with intent not to sell as advertised)
Possible remedy: The greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus reasonable attorney fees and costs under C.R.S. 6-1-113.
Refused to release the vehicle without payment when the consumer disputed the work/fees
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-106 (no lien for unauthorized excess); remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (improper retention / wrongful lien for disputed charges)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113; common-law conversion damages for wrongful retention.
Not properly licensed/registered with the state regulatory authority
- Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(rrr) (catch-all unfair/unconscionable practice); remedy C.R.S. 6-1-113 — Deceptive trade practice (operating an auto repair business without required state registration)
Possible remedy: The greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus reasonable attorney fees and costs under C.R.S. 6-1-113.
Failed to comply with its stated warranty to repair the vehicle
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-108.7; remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act / breach of express warranty
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113; contract damages for breach of express warranty.
Charged excessive storage fees while holding the vehicle
- Colorado Motor Vehicle Repair Act, C.R.S. 42-9-106 (storage charges); remedy C.R.S. 42-9-113 — Violation of the Colorado Motor Vehicle Repair Act (improper storage charges)
Possible remedy: Mandatory treble (3x) actual damages (except for clerical errors or omissions), statutory minimum $250, plus reasonable attorney fees and costs (discretionary — the court 'may' award them) under C.R.S. 42-9-113.
Inspection station issued a fraudulent inspection certificate
- Colorado emissions inspection program, C.R.S. 42-4-313(2)(a)-(b); consumer remedy via Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(b) and remedy C.R.S. 6-1-113 — Fraudulent emissions certification / deceptive trade practice (false certification)
Possible remedy: Under the CCPA: the greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus attorney fees (C.R.S. 6-1-113); the inspector also faces criminal/administrative penalties under C.R.S. 42-4-313 (no private right under that section).
Inspection station failed to properly perform the safety/emissions inspection
- Colorado emissions inspection program, C.R.S. 42-4-313; consumer remedy via Colorado Consumer Protection Act, C.R.S. 6-1-105(1)(e) and remedy C.R.S. 6-1-113 — Deceptive trade practice / improper emissions inspection
Possible remedy: Under the CCPA: the greater of actual damages, $500, or treble damages (treble discretionary, requiring clear-and-convincing proof of bad-faith conduct), plus attorney fees (C.R.S. 6-1-113); administrative fines of $25-$1,000 against the station under C.R.S. 42-4-313 (no private right under that section).
Free tools for your Colorado dispute
More Colorado guides
Colorado auto-repair FAQ
What is the small claims limit in Colorado?
In Colorado, you can generally sue in small claims court for up to $7,500 without a lawyer. Auto-repair disputes commonly fall within this limit.
Can I sue a mechanic in Colorado?
Yes. Colorado consumer-protection and auto-repair laws cover this kind of situation, including overcharges, unauthorized work, and faulty repairs. Many disputes start with a demand letter before small claims court. We track 20 Colorado statutes that may apply.
Who regulates auto repair shops in Colorado?
Colorado Attorney General's Office, Consumer Protection Section oversees auto-repair consumer issues in Colorado. You can file a complaint with them in addition to (or instead of) sending a demand letter.
Do I need a lawyer to send a demand letter in Colorado?
No. A clear, statute-citing demand letter is something you can send yourself — it is often what gets a shop to refund or fix the problem before court.
This page is general information, not legal advice, and is not a substitute for a licensed attorney. Court rules, dollar limits, and filing fees vary by county — confirm yours before filing.