Decoding Truck Crashes: The Role of Black Box Data in Tennessee Law

Electronic data recorders track critical vehicle operations, including speed, throttle position, and engine performance. By cross-referencing these logs with physical scene evidence—such as skid marks and road damage—investigators can reconstruct a definitive crash timeline. This digital trail often serves as the deciding factor in Tennessee, where comparative fault rules require a granular understanding of each driver's actions leading up to impact.

Personal injury attorney Missy Wigginton emphasizes that the window for securing this data is narrow. Because these systems often overwrite information as a vehicle remains in service, immediate action is necessary. Legal teams frequently issue preservation letters to trucking companies to prevent the loss of electronic records. Beyond the black box, victims should document the truck’s USDOT number and capture scene photographs to ensure a complete evidentiary record. With Tennessee’s one-year statute of limitations for filing personal injury lawsuits, prompt collection of this data is essential to building a viable claim.