CarDr

Software DevelopmentIllinois, United States11-50 Employees

CarDr is a software development company based in Oakbrook Terrace, Illinois. Its flagship offering, CarDr ULTRA, is an OBD diagnostic adapter that dynamically reconfigures to match a vehicle’s OEM protocol in real time, enabling deep access to ECUs and OEM trouble codes across multiple makes. The product supports a broad set of OEM protocols and ECU systems, aiming to improve diagnostic speed and accuracy for dealers and auctions, and to reveal hidden repair costs that static scanners may miss. The company targets automotive service shops, dealerships, and auction bidders by addressing issues such as undetected transmission failures and recently cleared codes, with a focus on protecting profits through more thorough vehicle evaluations. CarDr operates in the automotive software and diagnostics space, positioning itself as a specialized tool for used-car assessment and appraisal, including integration capabilities with partner networks. Recent developments include leadership changes with a new CEO and president in 2025, reflecting ongoing expansion in its diagnostic offerings and strategic partnerships.

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