Did Your Car’s Crash Alert Send Data to the Insurer?

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Knowledge Base · Your Crash Data

Did Your Car’s Crash Alert Send Data to the Insurer?

By Attorney Manny Chahal · Updated July 2026 · Reading time: ~7 min

When you crash today, your car or your phone may know before you do. Apple, Google, and built-in systems like OnStar can detect a collision automatically, call for help, and record what happened in the seconds around impact. That data can be powerful, and it cuts both ways. It can prove how hard you were hit when an insurer claims the crash was too minor to hurt you, and it can also be something the insurance company wants to get its hands on. Here is what was recorded, who owns it, and how to keep it from working against you in Michigan.

What your car and phone recorded

Two different things are usually at play. The first is automatic crash detection built into a phone or a connected-car service. When it senses a hard impact, it can place an emergency call and log details such as your location, the time, and a reading of the forces involved. The second is the event data recorder, often called the black box, a small module inside most modern vehicles. It captures a short snapshot around a crash, including things like the change in speed at impact, whether the brakes were applied, whether the airbags fired, and whether seat belts were buckled.

None of this is the same as a dashcam video or the ongoing driving-score tracking some insurers sell. This is the record of the crash event itself, and it is often the most objective account of what happened that exists anywhere.

Who owns that data

This is the part insurers do not lead with. Under the federal Driver Privacy Act of 2015, the data in a vehicle’s event data recorder belongs to the owner or lessee of the vehicle. Another party generally cannot pull it without your consent, a court order, or one of a few narrow exceptions such as a formal crash investigation or emergency medical response.

In practice that means you usually have a say. An insurer that wants your black-box data typically needs your permission or a court’s, and you do not have to hand over unrestricted access just because an adjuster asks. That is a decision worth making with advice, not on the phone under pressure.

The key point: The crash record in your vehicle is generally yours under the federal Driver Privacy Act of 2015. You control access to it in most situations, and you are not required to give the insurance company a blank check to your data.

How the data can help you, not just the insurer

Injured people often assume this technology is only a threat. Frequently it is the opposite. One of the most common insurer arguments is that a crash was a low-speed, minor event that could not have caused a real injury. Crash-event data can flatten that argument by showing the actual force of the impact. A recorded change in speed at the moment of collision is hard, objective proof that the hit was significant, which supports both that your injury is real and that the crash caused it.

That objective quality matters under Michigan law. To recover for pain and suffering you generally must show a serious impairment that is objectively manifested, meaning grounded in more than your own say-so. Data that documents a forceful impact, tied to medical findings, helps meet that standard rather than undercut it.

How the insurer tries to use it, and the limits

The other side will read the same data for anything helpful to them, for example arguing the forces were low or that a seat belt was unbuckled. Two things keep that in check. First, the data has to be authenticated and shown reliable before a court will rely on it. Michigan Rule of Evidence 901 allows evidence produced by a process or system to be admitted on a showing that the system produces accurate results, which also means the method and the download can be questioned. Second, raw numbers rarely speak for themselves. What a change-in-speed figure means for your body usually takes a qualified expert, and that opinion is open to challenge like any other. A single data point pulled out of context does not decide a claim.

Do not let the evidence disappear

Here is the practical trap. After a serious crash your vehicle is often declared a total loss, and once the insurer takes it, the car can be sold or scrapped with the black box still inside. If that happens before anyone downloads the data, the best objective evidence of your own crash can be gone for good. The connected-car and phone records can also age out over time.

The fix is to move early. The vehicle and its data recorder should be preserved, and the crash record retrieved with the proper tools, before the car disappears. If a connected-car service or phone captured crash information, that should be requested promptly too. This is routine when someone knows to ask, and a costly miss when no one does.

Deadlines run in the background. Michigan generally allows three years to file an injury lawsuit under MCL 600.5805(2), and no-fault benefits carry a one-year rule under MCL 500.3145. Evidence can vanish long before either clock runs out.

Frequently Asked Questions

Can the insurance company get my car’s crash data without asking me?

Usually not. Under the federal Driver Privacy Act of 2015, event data recorder information belongs to the vehicle owner or lessee, and another party generally needs your consent or a court order to access it, with only a few narrow exceptions. You do not have to volunteer unrestricted access to an adjuster.

Is crash data good or bad for my claim?

It can be either, and often it helps. When an insurer claims your crash was too minor to injure you, recorded impact data can prove the hit was forceful, which supports that your injury is real and was caused by the collision. Whether it helps or hurts depends on the facts, which is why preserving and understanding it early matters.

What is the difference between this and the driving app my insurer offers?

They are different. Usage-based programs track your everyday driving habits over time. Crash-event data is the snapshot of the collision itself, captured by your vehicle’s black box or by automatic crash detection, and it is generally the most objective record of what happened in the crash.

My car was totaled. Is the data gone?

It may still be recoverable, but you have to act fast. Once the insurer takes a total-loss vehicle, it can be sold or scrapped with the recorder inside. The car and its data should be preserved and downloaded before that happens, or important evidence can be lost.

Should I sign the insurer’s authorization for my crash data?

Be careful before signing anything that gives broad access. You generally control this data, and a decision to release it is worth making with advice so you are not handing over more than the situation requires.

Crash data at stake in your Michigan claim?

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