Transmission Control Module
WARNING: This page is about a different car, the 2007 Jeep Patriot and 2007 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
The transmission control module (TCM) is inside the car, behind the instrument panel where the clutch pedal would be located. New controllers are shipped with generic software but need to be initialized for the vehicle into which it is installed. See STANDARD PROCEDURE .