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Home › Chevrolet › 2021 › Express 2500 LS, 2.8L Eng VIN 1 › Repair and Diagnosis › External Pages › Different car › Section 38 (Programming And Setup) › Repair Instructions › Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup (6L90 (MYD)) › Transmission Control Module (TCM) Replacement

Transmission Control Module (TCM) Replacement

WARNING: This page is about a different car, the 2022 GMC Savana 3500, 2022 GMC Savana 2500, 2022 Chevrolet Express 3500, and 2022 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

If the TCM is replaced, the following procedures must be performed:

  1. TCM Reprogramming
  2. The Reset Transmission Adapts - Refer to Reset Transmission Adapts
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