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HOMESERVICE MANUALSBUICK2018REGAL BASEREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESDATA COMMUNICATION SYSTEM - REPAIR INSTRUCTIONSREPAIR INSTRUCTIONSBODY CONTROL MODULE REPLACEMENT
2018 Buick Regal Base

Body Control Module Replacement

2018 Buick Regal BaseSECTION Body Control Module Replacement
GM4641175Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Callout Component Name

Preliminary Procedures

  1. BATTERY NEGATIVE CABLE DISCONNECTION AND CONNECTION (3.6L LGX) or BATTERY NEGATIVE CABLE DISCONNECTION AND CONNECTION (2.0L LTG)
  2. Pull back the front floor panel carpet on the passenger side to access the body control module.
1 Body Control Module

Procedure

  1. Disconnect the electrical connectors.
  2. Unlock the retaining tabs.
  3. Run all necessary programming and setup procedures. Control Module References
RENDER: 1.0x

NO RELATED

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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.