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HOMESERVICE MANUALSBUICK2019ENVISION BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUPREPAIR INSTRUCTIONSK71 TRANSMISSION CONTROL MODULE: PROGRAMMING AND SETUP (9T60 (M3T))REPLACE AND PROGRAM CONTROL MODULE
2019 Buick Envision Base

Replace and Program Control Module

2019 Buick Envision BaseSECTION Replace and Program Control Module

To program a replacement K71 Transmission Control Module (TCM), perform the following procedure:

  1. Replace the K71 Transmission Control Module.
  2. Install EL-49642  SPS programming support tool
  3. Access the Service Programming System (SPS) and follow the on-screen instructions.
  4. Perform one of the following SPS Programming functions:
      NOTE:

      If both controller options below are listed, select K71 Transmission Control Module

    • K20/ K71 Engine and Transmission Control Modules and follow the on-screen instructions
    • K71 Transmission Control Module and follow on-screen instructions.
  5. Perform the Refresh Characterization Data at the MCVM Characterization procedure, follow the on-screen instructions.
  6. Perform the Vehicle Setup, follow the on screen instructions.
  7. With a scan tool, clear DTCs from the K71 Transmission Control Module.
  8. Ignition OFF for 2 minutes.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.