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Home >> GMC >> 2007 >> Acadia SLE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Cruise Control System) >> Description and Operation >> Cruise Control Description and Operation (Adaptive Cruise Control) >> Adaptive Cruise Control (ACC) System Description >> Distance Sensing Cruise Control (DSCC) Module >> Transmission Control Module (TCM)

Transmission Control Module (TCM)

WARNING: This page is about a different car, the 2007 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

The transmission control module (TCM) provides a down shift to protect the brakes. When the TCM detects some driver braking activity or ACC automatic braking activity, the TCM down shifts the vehicle transmission to increase engine braking. This helps reduce braking activity, extend brake pad life and reduce brake system overheating.

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