A new ECM Calibration Update has just arrived. This update is available if you have one of these codes listed below, DO NOT GO TO YOUR DEALER just asking for an update. This update is meant to fix these particular codes, if you have been getting one or all, it is suggested to go see your local dealer to see if it applies to your truck.
#24-NA-094: LZ0 Engine Control Module Update - (May 30, 2024)
2024 Model Year only - Silverado / Sierra w/ 3.0 Duramax Diesel LZ0
The cause of the condition may be a software anomaly.
Technician may find DTCs:
P049D - Exhaust Gas Recirculation Valve Position Not Learned
P11D5 - Nitrogen Oxides Sensor 2 Exceeded Minimum Learning Limit
P138C – Warm Catalyst Heating Combustion Mode Performance
P140C - Exhaust Gas Recirculation Valve Slow Response - Decreasing Flow
P1428 - Exhaust Gas Recirculation Temperature Sensor and Intake Air Temperature 2 Sensor Correlation
P2002 - Particulate Filter Low Efficiency
P20FE - Reductant Injector Performance - Low Reductant Consumption
P2297 - Heated Oxygen Sensor Performance During Deceleration Fuel Cut-Off
P22FE - Nitrogen Oxides Sensor 2 Performance - Sensing Element
P22FB - Nitrogen Oxides Sensor Performance - Sensing Element
P2463 - Particulate Filter Soot Accumulation
P2459 - Particulate Filter Regeneration Frequency
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