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.
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HOMESERVICE MANUALSCHEVROLET2009IMPALA V8-5.3LREPAIR AND DIAGNOSISRESTRAINTS AND SAFETY SYSTEMSAIR BAG SYSTEMSROLL RATE SENSORTESTING AND INSPECTION
2009 Chevrolet Impala V8-5.3L
Roll Rate Sensor: Testing and Inspection
2009 Chevrolet Impala V8-5.3LSECTION Testing and Inspection
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 inflatable restraint sensing and diagnostic module (SDM) is replaced, and during the programming procedure for the BCM until after the procedure is completed. When installing a new SDM, there may be several DTCs set prior to programming. Once programmed, these DTCs should be in history and can be cleared.
1. Ignition ON, program the SDM. Refer to Service Programming System (SPS) (Programming and Relearning).
2. In the BCM Module Setup menu, select Setup SDM Primary Key in BCM. Follow the scan tool on screen instructions.
3. In the SDM Module Setup menu, select Setup SDM. Follow the scan tool on screen instructions.
4. Cycle the ignition from OFF to ON. Verify no DTCs are set. If any DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code Descriptions).
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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.