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Home › Buick › 2018 › LaCrosse Base › Repair and Diagnosis › Hybrid/Electric Powertrain › Electric Converters and Controllers › Hybrid/EV Control System › Repair Instructions › Starter Generator Replacement › Removal Procedure

Removal Procedure

    WARNING:

    Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

    The High Voltage Disabling procedure includes the following steps:

    • Identify how to disable high voltage.
    • Identify how to test for the presence of high voltage.
    • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

    Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:

    • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
    • Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
      • Visually and functionally inspect the gloves before use.
      • Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.

    Failure to follow the procedures may result in serious injury or death.

  1. Disable the high voltage system. High Voltage Disabling
  2. Drive Belt Tensioner - Remove - Drive Belt Tensioner Replacement
  3. Drive Belt Secondary Tensioner - Remove - Drive Belt Secondary Tensioner Replacement
  4. GM4311607

    Exhaust Front Pipe (1) - Remove - Exhaust Front Pipe Replacement (LHN)

  5. GM4758101
    NOTE:

    Plug the drive motor control module radiator outlet hose so coolant will not contaminate any electrical connectors.

    Drive Motor Generator Control Module Radiator Inlet Hose (2) @ Starter Generator - Remove - Drive Motor Generator Control Module Radiator Inlet Hose Replacement (LHN)

  6. GM4757744
    NOTE:

    Plug the generator control module coolant tank hose so coolant will not contaminate any electrical connectors.

    Generator Control Module Coolant Hose (2) @ Starter Generator - Remove - Generator Control Module Coolant Hose Replacement (LHN Generator Control Module Coolant Hose to Starter Generator)Generator Control Module Coolant Hose Replacement (LHN Generator Control Module Coolant Hose to Generator Control Module)

  7. GM4213807

    Front Wheel Drive Half Shaft-Right Side (1) - Remove - Front Wheel Drive Half Shaft Replacement - Right Side (AWD)Front Wheel Drive Half Shaft Replacement - Right Side (FWD with LHN)

  8. GM4745243

    Generator Control Module Cable Cover Bolt (1) @ Starter Generator (3) - Remove [2x]

  9. Generator Control Module Cable Cover Bolt (2) - Remove
  10. GM4745244

    Generator Control Module 3-Phase Cable Cover (1) - Remove

  11. Terminal Insulator (2) - Remove
  12. GM4745245

    Generator Control Module 3-Phase Cable Bolt (1) - Remove [3x]

  13. Generator Control Module 3-Phase Cable Cover Seal (2) - Inspect and replace as necessary.
  14. GM4745246

    Generator Control Module Cable Housing Bolt (1) - Remove [2x]

  15. Generator Control Module 3-Phase Cable (2) - Remove
  16. Lower the vehicle.
  17. GM4745247

    Generator Mounting Nut (2) - Remove

  18. Generator Mounting Stud (1) - Remove
  19. Generator Mounting Bolt (3) - Remove
  20. Raise and support the vehicle.
  21. GM4745250
    NOTE:

    Do not contaminate the connector terminals with coolant fluid.

    Electrical Connector (2) - Disconnect

  22. Generator Bolt (1) - Remove [2x]
  23. Starter Generator (3) - Remove
  24. GM4993769
    NOTE:

    If replacing the starter generator, transfer the starter generator brace, if equipped.

    Drive Belt Tensioner Stop Bolt (1) - Remove

  25. Starter Generator Brace (2) - Remove
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