TCM

Updated: June 3, 2025

Definition

Transmission Control Module (TCM) is a specialized electronic control unit that manages automatic transmission operation, controlling shift points, torque converter lockup, and transmission protection strategies.

Category: Specific Control Modules

Specialized electronic control units that manage specific vehicle subsystems

The Transmission Control Module uses sensors and software algorithms to optimize transmission performance, determining optimal shift timing and managing transmission behavior based on driving conditions and driver input.

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