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Important: After the procedure is completed, the personalization settings of the BCM are set to a default setting. Inform the customer that the personalization must be set again.

For 4.3L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

For 4.8L, 5.3L or 6.0L, refer to REMOTE PROGRAMMING or PASS-THRU PROGRAMMING or OFF-BOARD REMOTE PROGRAMMING or OFF-BOARD PASS-THRU PROGRAMMING .

Important: After programming, perform the following to avoid future misdiagnosis:

Turn the ignition OFF for 10 seconds.
Connect the scan tool to the data link connector.
Turn the ignition ON with the engine OFF.
Use the scan tool in order to retrieve history DTCs from all modules.
Clear all history DTCs.

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.

Safety Warning

Setup New Body Control Module (BCM)

Use the Manual With the Right Hardware

When to See a Mechanic

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