DTC P11D5 Calibration Update – 2023 Chevrolet Silverado & GMC Sierra 2500/3500

2023 Chevrolet Silverado

NHTSA ID Number: 10224282 Manufacturer Communication Number: PIP5871 Summary This Preliminary information communicates that there is an update calibration for the ecm concerning a P11D5 setting on 2023 Chevrolet and GMC trucks equipped with the L5P engine.   Condition Customer may complain of a MIL on DIC   Cause A technician may see P11D5 set in the …

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Checking Exhaust System for Leaks, Malfunction Indicator Lamp (MIL) Illuminated – DTC P2C7A and/or P0421 Set – 2020-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10222807 Manufacturer Communication Number: 22-NA-168 Summary This bulletin provides diagnostic information when checking the exhaust system for leaks.   Condition Some customers may comment that the MIL is illuminated. Technicians may comment on one or more of the following DTCs set in the Engine Control Module (ECM): P11D5: Nitrogen Oxides Sensor 2 Exceeded Minimum …

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MIL/Service Engine Soon Light Illuminated with DTC P11D5 set – 2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

2021 Chevrolet Silverado

NHTSA ID Number: 10193464 Manufacturer Communication Number: PIP5775B   Summary This Preliminary information communicates to dealership technicians that a P11D5  may be cause by a software anomaly,  check to see if campaign N212331790 applies, reflash the ECM and release the vehicle.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2021 CHEVROLET SILVERADO 3500 2021 …

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MIL Illuminated- ECM Update for P026C, P20EE, or P11D5 – 2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

2021 Chevrolet Silverado

NHTSA ID Number: 10198891 Manufacturer Communication Number: 21NA128   Summary This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2021 CHEVROLET SILVERADO 3500 2021 GMC SIERRA 1500 2021 GMC SIERRA 2500 2021   …

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Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs – 2019-2021 Cadillac Chevrolet GMC

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10224856 Manufacturer Communication Number: 21-NA-149 Summary This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.   Condition 1 This Condition pertains to vehicles equipped with engine 2.7L, L3B only. Some customers may comment on any of the following concerns: – SES MIL – No Start – No …

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