Car Accident Release in Colorado: 5 Clauses | Conduit Law

When the other driver's insurer agrees to pay, the last step is usually a document called a release. It is often only two or three pages, it arrives with a check that has not been cut yet, and it asks you to give up every claim from the crash in exchange for the settlement amount. Once it is signed and the money is paid, the claim it covers is generally over. This guide is about that document. It walks through the five clauses Colorado drivers should read before signing a car accident release, the notice step that can protect a claim against your own underinsured motorist (UIM) insurer, how liens and Medicare are handled, and why we usually advise against signing a full and final release before treatment is finished. It is general information, not advice about your release, and nothing here predicts the outcome of any case.

Teardown: The Release You Are Asked to Sign

The settlement release is the most important document in most Colorado car accident claims, and it is also the one people most often sign without reading. Most bodily injury releases share the same core clauses, drafted by insurance defense counsel and reused across thousands of claims. None of them is unusual on its own. Several, though, carry consequences that are easy to miss, especially when the injured person also has a UIM claim, a health plan that paid medical bills, Medicare, or a hospital lien under C.R.S. § 38-27-101. Reading a release well means checking three things: that it covers only the people and claims it should, that responsibility for liens is spelled out in writing, and that nothing in it extinguishes a claim against a different insurer. The table below breaks down five clauses we read closely on every release before a client signs one.

Release clause	What it typically says	What it can mean for you
Full and final release	Releases "all claims, known and unknown"	A later surgery or complication from the same crash is generally not covered after you sign
Released parties	The driver, the insurer, and "all other persons, firms, and corporations"	Broad wording can sweep in people or companies you did not intend to release
Lien indemnity	You agree to pay all liens and hold the insurer harmless	Unpaid medical liens become your personal responsibility
Medicare clause	You represent that Medicare's interests are protected	Medicare's conditional payments must be resolved from the settlement
Confidentiality	The terms may not be disclosed	Often negotiable on an ordinary car accident claim

"Known and Unknown" Claims

The phrase that does the most work in a release is usually the shortest: "all claims, known and unknown." It means the release is not limited to the injuries in your medical records on the day you sign. If an MRI months later shows a disc injury that needs injections or surgery, the release generally covers that too, because the injury came from the same crash. Courts treat a signed release as a contract, and undoing one is difficult and uncommon. That is why the timing of the signature matters as much as the amount, and why we discuss it in its own section below. Before signing, read the release's description of the incident (date, location, vehicles) to confirm it describes only this crash, and check whether property damage is included or was handled separately.

Who Is Being Released

The released-parties paragraph names who you are giving up claims against. A clean release names the at-fault driver, the vehicle owner if different, and their liability insurer. Boilerplate often adds "and all other persons, firms, corporations, associations, or partnerships." That catch-all can matter when someone else may share responsibility, such as a trucking company or other employer whose driver was on the clock, a second vehicle, or a road contractor, and it can matter for your own UIM insurer, discussed next. Asking the insurer to limit the released parties to the people actually paying is a routine request, not an aggressive one.

The Clause That Can Jeopardize a UIM Claim

The most expensive release mistake we see on Colorado car accident claims involves underinsured motorist coverage. When the at-fault driver's insurer offers its full policy limits, the natural instinct is to sign quickly and take the money. But most Colorado auto policies include a consent-to-settle or notice provision for UIM claims: before you release the at-fault driver, you generally must notify your own UIM insurer in writing and give it a chance to respond. The provision exists because releasing the at-fault driver can cut off your UIM carrier's right to pursue that driver for what it later pays you. Colorado courts have generally enforced these clauses, and when an insured settles without telling the UIM carrier first, the carrier may be presumed to have been harmed, which shifts the burden to the insured. Skipping the notice step, or signing a release whose "all other persons" language reaches your own carrier, can give the UIM insurer a defense to your claim.

Colorado UIM coverage under C.R.S. § 10-4-609 is "added-on" coverage: it covers the difference between the at-fault driver's liability limits and your damages, up to your UIM limit, instead of being reduced by what the at-fault driver's insurer paid. That makes it worth protecting. Our underinsured motorist guide covers how UIM coverage stacks with the other driver's policy.

How the Notice Step Usually Works

The process is procedural, and your policy controls the details, so read the UIM section and its conditions before anything is signed. In most cases it looks like this:

1. Get the offer in writing from the at-fault driver's insurer, including the amount and confirmation of the policy limits.
2. Send written notice to your own UIM insurer with the offer, the proposed release, and a request for consent to settle.
3. Wait for the response period your policy sets. Some policies let the UIM insurer advance the amount of the offer itself so it can keep its own claim against the at-fault driver.
4. Limit the release to the at-fault driver, the owner, and their liability insurer, with language that preserves your UIM claim.
5. Keep copies of the notice, any consent, and the signed release for the UIM claim that follows.

Liens, Medicare, and the Hold-Harmless Clause

Money that paid your medical bills during the claim is often money someone expects back at settlement. Health plans, Medicare, Medicaid, and hospitals can each claim repayment, and the release usually makes those repayments your responsibility through a lien indemnity or hold-harmless clause. That is a normal term, but it means the lien amounts need to be identified and, where possible, reduced before the money is distributed. For state-regulated health plans, Colorado's made-whole statute, C.R.S. § 10-1-135, can limit reimbursement when you have not been fully compensated. Self-funded employer plans are governed by federal ERISA rules and often enforce their plan language as written. A hospital that files a lien under C.R.S. § 38-27-101 has a claim against the settlement itself. Our medical lien negotiation guide and Colorado hospital lien guide explain how those amounts are verified and negotiated.

The Medicare Clause

If Medicare paid any crash-related bills, federal law treats those payments as conditional: Medicare is a secondary payer and expects to be repaid from a liability settlement. A release will usually ask you to represent that Medicare's interests are protected and to indemnify the insurer if they are not. In practice that means requesting Medicare's conditional payment summary early, disputing charges unrelated to the crash, and resolving the final demand from the settlement proceeds. Signing a Medicare clause without knowing the number puts the risk on you.

Don't Sign a Full and Final Release Before MMI

Here is a position that costs us time and that some clients push back on at first: on most car accident claims, we do not recommend signing a full and final release until the injured person reaches maximum medical improvement (MMI), the point where a treating doctor says the condition has stabilized and the future is predictable. A release signed while someone is still in physical therapy prices an unfinished injury, and because the release covers "known and unknown" claims, there is usually no going back if the injury turns out to be worse. Colorado's general deadline to file a motor vehicle injury lawsuit is three years under C.R.S. § 13-80-101(1)(n), which in most cases leaves room to finish treatment before settling. Waiting is not passive. While treatment continues, records, bills, and liens can be gathered so the claim is ready when the medical picture is. Our post on what maximum medical improvement means explains how MMI is determined.

The Low-Limits Exception

The MMI rule has one common exception. When the at-fault driver carries only Colorado's minimum bodily injury coverage under C.R.S. § 10-4-620 and the medical bills already exceed it, waiting for MMI does not change what that insurer can pay. In that situation, accepting the liability limits early can make sense, but only with written notice to your own UIM insurer under the policy's consent-to-settle terms and a release limited to the at-fault driver and that driver's insurer. Once that is handled, the rest of the claim moves to UIM, which can wait for MMI. Same principle, different order: the release should never be what forces a decision about an injury that is not finished.

Read the Offer Letter Before the Release

The release usually follows a written offer, and that letter explains how the insurer arrived at its number. A reduction labeled "not reasonable and necessary" points to a gap or plateau in the medical records. A comparative fault percentage points to a liability dispute under C.R.S. § 13-21-111; see our guide to comparative negligence in Colorado. A reference to the police report's restraint code points to a seat belt argument, which Colorado limits to pain and suffering; see Colorado's seat belt law. A refusal to consider future treatment points to a missing physician opinion. Each of those is worth answering with records before the release is on the table. Our guide on how to negotiate with an insurance adjuster walks through responding to an offer letter. If the claim is still being built, our car accident practice page explains how those files are put together.

Frequently Asked Questions

Can I reopen my claim after signing a release?

Usually not. A signed release is a contract, and courts set one aside only in narrow circumstances, such as fraud or certain kinds of mistake. "Known and unknown" language is written to cover injuries that show up later, so it is safer to treat a signed release as final.

Do I need my UIM insurer's permission before settling?

Often, yes. Many Colorado auto policies require written notice to your UIM insurer, and its consent, before you release the at-fault driver. Settling without that step can give the UIM insurer a defense. Your policy's UIM conditions control the specific steps and timing.

Who pays my medical liens after I sign?

Liens are generally paid from the settlement, and most releases make you responsible for them through a hold-harmless clause. Health plan, Medicare, Medicaid, and hospital liens should be identified, verified, and negotiated where possible before the money is distributed.

Should I sign before I finish treatment?

Generally not, because a full and final release covers future problems from the same crash. The common exception is accepting a minimum-limits policy early to protect a UIM claim, which should only happen after written notice to your UIM insurer.

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This article is general information about Colorado law and is not legal advice. Reading it does not create an attorney-client relationship. Insurance policy terms vary, and the language of your release and policy controls. Past results do not guarantee a similar outcome. Talk with a licensed Colorado attorney about the facts of your situation.

If an insurer has sent you a release, Conduit Law's Denver team can review it before you sign.