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 MANUALSCHEVROLET2009SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSENGINE CONTROLS - ECM CALIBRATION INFORMATION
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Engine Controls - ECM Calibration Information
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Engine Controls - ECM Calibration Information
INFORMATION
Bulletin No.: 08-06-05-005
Date: October 01, 2008
Subject:
Information on HD Diesel 2500/3500 Exhaust System, Catalytic Converter, DPF - Vehicle Build and Programming ECM with Correct Calibration
Models:
2009 Chevrolet Silverado 2500/3500 HD
2009 GMC Sierra 2500/3500 HD with 6.6L Diesel Engine (VIN 6 - RPO LMM)
2009 MY Vehicles Built with 2009 Exhaust System
The 2009 vehicles shown above have been built with the 2009 exhaust system. However, the RPO list does not have ZK3 (2009 Exhaust System) listed in the build record or on the SPID label.
Notice:
It is important to program the ECM with the correct calibration to the correct exhaust system. Failure to use the correct calibration will result in non-compliance. If the incorrect calibration is used with the exhaust system, damage and/or plugging of the DPF will occur.
Other than the specific VINs listed in this bulletin, when 2009 MY vehicles are built with 2009 exhaust, RPO ZK3 will appear on the SPID label and build information found in GMVIS.
2009 MY Vehicles Built with 2008 Exhaust System
Notice:
It is important to program the ECM with the correct calibration to the correct exhaust system. Failure to use the correct calibration will result in non-compliance. If the incorrect calibration is used with the exhaust system, damage and/or plugging of the DPF will occur.
Important:
If it is necessary to service the exhaust system, be sure to use the correct model year parts the vehicle was originally built with.
If the vehicle is built with the 2008 Exhaust System, these vehicles will not have ZK3 - 2009 Exhaust System listed on the SPID label or in GMVIS. Any time engine calibrations are serviced, or if the exhaust system is replaced, it is important to program the vehicle with the correct calibration. If the exhaust system is serviced with a 2009 exhaust system, the vehicle must be calibrated using 2009 software.
Disclaimer
Bulletin No.: 08-06-05-005
Date: October 01, 2008
Subject:
Information on HD Diesel 2500/3500 Exhaust System, Catalytic Converter, DPF - Vehicle Build and Programming ECM with Correct Calibration
Models:
2009 Chevrolet Silverado 2500/3500 HD
2009 GMC Sierra 2500/3500 HD with 6.6L Diesel Engine (VIN 6 - RPO LMM)
2009 MY Vehicles Built with 2009 Exhaust System
The 2009 vehicles shown above have been built with the 2009 exhaust system. However, the RPO list does not have ZK3 (2009 Exhaust System) listed in the build record or on the SPID label.
Notice:
It is important to program the ECM with the correct calibration to the correct exhaust system. Failure to use the correct calibration will result in non-compliance. If the incorrect calibration is used with the exhaust system, damage and/or plugging of the DPF will occur.
Other than the specific VINs listed in this bulletin, when 2009 MY vehicles are built with 2009 exhaust, RPO ZK3 will appear on the SPID label and build information found in GMVIS.
2009 MY Vehicles Built with 2008 Exhaust System
Notice:
It is important to program the ECM with the correct calibration to the correct exhaust system. Failure to use the correct calibration will result in non-compliance. If the incorrect calibration is used with the exhaust system, damage and/or plugging of the DPF will occur.
Important:
If it is necessary to service the exhaust system, be sure to use the correct model year parts the vehicle was originally built with.
If the vehicle is built with the 2008 Exhaust System, these vehicles will not have ZK3 - 2009 Exhaust System listed on the SPID label or in GMVIS. Any time engine calibrations are serviced, or if the exhaust system is replaced, it is important to program the vehicle with the correct calibration. If the exhaust system is serviced with a 2009 exhaust system, the vehicle must be calibrated using 2009 software.
Disclaimer
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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.