Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2009 Hummer H2 4D Utility PickupFACTORY OEM SERVICE PROCEDURE

Body Control Module Replacement

Fig 1: Identifying Body Control Module

Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Body Control Module

Procedure

Remove the tape securing the BCM wiring harness prior to removing connectors.
Disconnect the electrical connectors.
Press on the tabs to release the body control module.
After servicing BCM use a tie strap to secure the wiring harness where the tape was removed.
If a replacement module is installed, program the module. Refer to Control Module References

Factory Service Tools

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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.

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