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Home >> Chevrolet >> 2012 >> Chevy Express H1500, Van Cargo >> Repair and Diagnosis >> External Pages >> Different car >> Section 2330 (Programming And Setup - All Systems) >> Repair Instructions >> Control Solenoid Valve & Transmission Control Module Assembly Programming & Setup (6L45/6L50/6L80/6L90) >> TCM Reprogramming
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TCM Reprogramming

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 GMC Savana, 2013 GMC RV Cutaway, 2013 GMC Cutaway, 2013 Chevrolet RV Cutaway, and 2013 Chevrolet Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the TCM needs to be reprogrammed, refer to Service Programming System (SPS) .
  2. Perform the Reset Transmission Adapts - Refer to Reset Transmission Adapts .
    NOTE:

    After programming, perform the following to avoid future misdiagnosis:

  1. Turn the ignition OFF for 30 seconds.
  2. Turn the ignition ON with the engine OFF.
  3. Use the scan tool in order to retrieve history DTCs from all modules.
  4. Clear all history DTCs.
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