LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2022 >> Hummer EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Controls >> Repair Instructions >> Drive Motor Power Inverter Module Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

  1. GM5878291Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Drive Motor Power Inverter Module Cover Gasket (2) @ Drive Motor Power Inverter Module - Install

  2. Drive Motor Power Inverter Module (1) - Install
  3. GM5878286Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Some components not shown for graphic clarity.

    Drive Motor Power Inverter Module Bolt (1) - Install and tighten in sequence [16x] - Fastener Specifications

  4. GM5878233Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Drive Motor Power Inverter Module Connector Bolt (1) - Install and tighten [3x] - Fastener Specifications

  5. GM5878228Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Drive Motor Power Inverter Module Cover Gasket (3) @ Drive Motor Power Inverter Module Cover - Install

  6. Drive Motor Power Inverter Module Cover (2) - Install
  7. Drive Motor Power Inverter Module Cover Bolt (1) - Install and tighten [4x] - Fastener Specifications
  8. GM5878215Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the battery positive and negative cable (5).

  9. Connect the electrical connector. (4)
  10. Install the battery positive and negative cable retainer (3).
  11. Battery Cable Clip Bracket Bolt (2) - Install and tighten [4x] - Fastener Specifications
  12. Connect the electrical connector. (1)
  13. GM5878209Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the engine wiring harness.

  14. Install the engine wiring harness retainers.
  15. Connect the electrical connector. (1)
  16. GM5878056Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Front Electric Drive Transmission Module Cooler Coolant Hose (1) - Connect

  17. GM5878050Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the high voltage battery heater bracket (3) and the attached cooling hoses.

  18. Install the engine wiring harness retainer (2).
  19. High Voltage Battery Heater Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  20. GM6040769Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Air Conditioning Refrigerant Heat Exchanger (2) - Install

  21. Air Conditioning Evaporator Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  22. GM5877982Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the high voltage battery coolant cooler outlet hose retainer (3).

  23. High Voltage Battery Coolant Cooler Outlet Hose (2) - Connect
  24. Connect the electrical connector. (1)
  25. GM5877977Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the front electric drive transmission module hose retainer (2).

  26. Front Electric Drive Transmission Module Hose (1) - Connect [2x]
  27. GM5877974Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install the high voltage battery coolant pump inlet hose retainer (3).

  28. High Voltage Battery Coolant Pump Inlet Hose (2) - Connect
  29. Connect the electrical connector. (1)
  30. GM5877973Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    High Voltage Battery Coolant Inlet Hose (2) - Connect

  31. Connect the electrical connector. (1)
  32. GM5877970Courtesy of GENERAL MOTORS COMPANY

    High Voltage Battery Heater Module (3) - Install

  33. High Voltage Battery Heater Bracket Bolt (2) - Install and tighten [4x] - Fastener Specifications
  34. Connect the electrical connectors. (1)
  35. GM5835727Courtesy of GENERAL MOTORS COMPANY

    Front Suspension Strut Housing Brace (1) - Install

  36. GM5835725Courtesy of GENERAL MOTORS COMPANY

    Front End Sheet Metal Cross Brace Bolt (1) - Install and tighten [12x] - Fastener Specifications

  37. Install any wiring harness retainers as necessary.
  38. Enable the high voltage system. High Voltage Enabling
  39. Fill the drive motor battery cooling system. Drive Motor Battery Cooling System Draining and Filling
  40. Run all necessary programming and setup procedures. Control Module References