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HOMESERVICE MANUALSBUICK2010LUCERNE CXL, 3.9 1REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 171 (DATA COMMUNICATION SYSTEM)REPAIR INSTRUCTIONSBODY CONTROL MODULE REPLACEMENT
2010 Buick Lucerne CXL, 3.9 1

Body Control Module Replacement

2010 Buick Lucerne CXL, 3.9 1SECTION Body Control Module Replacement
WARNING: This page is about a different car, the 2010 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control Module
GM1686522Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Remove the RH instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Right Side .
1 Body Control Module (BCM)
Tip: 
  • Depress the locking tab on the bracket and disconnect the electrical connectors to remove.
  • The replacement BCM must be programmed. Refer to 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.