Denver Truck Accident Attorney: Truck Black-Box Data

What a truck's black box records, and what else the company keeps

The "black box" is usually the engine control module, or ECM. Depending on the make and settings, it can store speed, brake application, throttle, cruise control use, and fault codes, and some systems save a short snapshot around a hard-braking event or the last stop. What is saved, and for how long, varies by manufacturer. A saved event can be replaced by a newer one once the truck is driven again, which is why the truck itself matters as much as the paperwork.

The ECM is not the only record. Most interstate truck drivers log their hours on an electronic logging device (ELD). Federal rules require the motor carrier to keep records of duty status and supporting documents "for a period of not less than 6 months" (49 CFR § 395.8(k)), and to keep "a back-up copy of the ELD records" for 6 months (49 CFR § 395.22(i)). Carriers must also keep an accident register "for 3 years after the date of each accident" (49 CFR § 390.15), but the register is a short summary, not the underlying data.

Other evidence can include forward- and driver-facing dash cameras, GPS and telematics data, dispatch messages, maintenance and inspection records, the driver qualification file, and post-crash drug and alcohol tests. After a qualifying crash, federal rules require the carrier to try to test the driver, and if an alcohol test is not given "within eight hours following the accident," the carrier stops trying (49 CFR § 382.303). Some of this evidence has a short life even when no one does anything wrong.

How a preservation letter protects truck crash evidence

A preservation letter, sometimes called a spoliation letter, is a written notice to the trucking company, and often its insurer, that a claim is likely and that specific evidence must be kept. A useful letter identifies the crash by date, time, and location, names the tractor, trailer, and driver where known, and lists what must be kept: ECM and other electronic data, ELD and hours-of-service records, camera footage, dispatch and phone records, inspection and maintenance files, and the vehicles themselves before they are repaired or sold.

The letter does not download anything on its own. It puts the company on notice. The data is then usually downloaded by a qualified technician with the right equipment, ideally with both sides present so no one can later question how it was handled. If evidence is lost after the company knew it mattered, the injured person may be able to ask the court for a remedy. Our guide to spoliation of evidence explains how that works.

Why a Denver truck or commercial vehicle claim is different from a car claim

Truck and commercial vehicle crashes usually involve a company, not just a driver. The motor carrier, the owner of the trailer, a shipper or loader, or a maintenance contractor may each have a role, and each may have its own insurer. Federal rules set higher insurance minimums for many trucks: a for-hire carrier hauling nonhazardous property in interstate commerce with a vehicle of 10,001 pounds or more must carry at least $750,000 in public liability coverage, and more for hazardous materials (49 CFR § 387.9). That is a minimum, not a measure of what a claim is worth.

The deadline is the same as other Colorado motor vehicle cases. Under C.R.S. § 13-80-101(1)(n), tort actions for bodily injury arising from the use or operation of a motor vehicle generally must be filed within three years. The evidence clock is much shorter, so the time to ask for records is before the three-year deadline is even a concern.

Who is Conduit Law?

Conduit Law, LLC is a Denver personal injury law firm founded by attorney Elliot Singer. The office is at 1576 N Sherman St Ste 120, Denver, CO 80203, and the phone number is (720) 432-7032. The firm helps people hurt in truck, commercial vehicle, car, and motorcycle crashes understand the evidence, the insurance, and the deadlines in their claim.

What does a Denver truck accident lawyer do with black-box data?

The first job is to keep it from disappearing: identify the truck, trailer, and carrier, and send a preservation letter that lists the ECM, ELD, camera, dispatch, and maintenance records. The next is to get the data downloaded properly and compare it with the police report, the driver's hours, photos, and witness accounts. Speed, braking, and hours-of-service records can confirm or contradict what the driver and the company say happened.

How long does a trucking company have to keep driver logs and ELD data?

Under 49 CFR § 395.8(k), a motor carrier must keep records of duty status and supporting documents for at least 6 months, and 49 CFR § 395.22(i) requires a 6-month back-up copy of ELD records. Those are minimums. Engine and camera data can be lost sooner, which is why a preservation request should go out as early as possible.

Is a commercial vehicle accident claim different from a car accident claim?

Often, yes. Delivery vans, box trucks, semis, and other work vehicles may be covered by company policies and, for many interstate carriers, federal insurance minimums and safety rules. More than one company may share responsibility. The evidence is also different: company records, electronic data, and driver files that do not exist in most car crashes.

How long do I have to file a truck accident injury claim in Colorado?

Under C.R.S. § 13-80-101(1)(n), tort actions for bodily injury arising from the use or operation of a motor vehicle generally must be filed within three years. Claims against government entities and insurance notice deadlines can be much shorter, so do not wait to get advice.

When should I talk to a Denver truck accident attorney?

As soon as you can after getting medical care, and before you give a recorded statement to the trucking company's insurer or sign any release. Early contact matters most in truck cases because electronic data, video, and logs can be lost. The consultation is free, and there are no fees unless we win. Call (720) 432-7032.