A transmission control unit (TCU) is an equipment that governs modern electronic automatic transmissions. Generally, TCU uses sensors from the vehicle and data provided by engine control unit (ECU) to analyze how and when to change gears, in order to optimize the vehicle performance, shift quality, and fuel economy. Mostly, TCU is utilized for high-end dual clutch transmission and automated manual transmission units. It is comprised of complex electronic components that control gearshift actuators and clutches. The global transmission control units market focuses on six regions namely North America, Latin America, Europe, Asia Pacific, Middle East, and Africa. The global transmission control units market is expected to witness significant growth during the forecast period, owing to rising automation in the industry.