2009 Chevrolet Uplander LT, 3.9 MFACTORY OEM SERVICE PROCEDURE

Inflatable Restraint Sensing and Diagnostic Module Programming and Setup

IMPORTANT: The air bag indicator light may remain ON after the body control module (BCM), or sensing and diagnostic module (SDM) is replaced, and during the programming procedure for the BCM until after the procedure is completed, and the ignition key is cycled OFF and ON.

If the SDM is replaced you must setup the new SDM part number in the BCM. With a scan tool, select the SIR module setup. Select Setup SDM Part Number in BCM and follow the on-screen instructions. After, you must setup the new SDM. Select Setup New SDM and follow the on-screen instructions.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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