2017

Poor Engine Performance in Extremely Cold Weather Conditions, PCV Bypass Hose and Charge Air Cooler Icing for LUV Engines, Malfunction Indicator Lamp (MIL) Illuminated – DTC P0299, P0234, P0236, P2261, P2227, P00C7 Set – 2011-2020 Buick Chevrolet Opel Vauxhall

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General Motors

NHTSA ID Number: 10219393 Manufacturer Communication Number: 22-NA-067 Summary This service bulletin provides a repair procedure to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, PCV Bypass Hose and Charge Air Cooler Icing for LUV Engines, Malfunction Indicator Lamp (MIL) Illuminated.   Condition Some customers may comment that when driving their vehicle, they … Read more

8L45 8L90 No Movement After Valve Body Replacement – 2015-2023 Cadillac Chevrolet GMC

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Chevrolet GMC Cadillac

NHTSA ID Number: 10220314 Manufacturer Communication Number: 22-NA-176 Summary This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair.   Condition Some technicians may comment on no movement after the valve body replacement.   Cause This may … Read more

Information on Mimamori ECU Download (Health Report) – 2016-2023 Chevrolet Medium Duty (LCF)

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2021 Chevrolet 6500XD

NHTSA ID Number: 10219280 Manufacturer Communication Number: 17-NA-050 Summary This service bulletin explains how a health report is required when doing repairs on MD LCF vehicles.   Information Important: Perform the Mimamori ECU download before clearing the DTC and before diagnosing the vehicle. In an effort for continuous improvement, there is a need to obtain Mimamori ECU … Read more

DTC P0BBD Diagnosis and Repair – 2017-2022 Chevrolet Bolt

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2022 Chevrolet Bolt EV

NHTSA ID Number: 10224827 Manufacturer Communication Number: 22-NA-151 Summary This service bulletin provides diagnostic and repair information for instances when DTC P0BBD may set.   Condition Some customers may comment on a Malfunction Indicator Lamp (MIL) illuminated and the Driver Information Center (DIC) displays “Propulsion Power is Reduced” and the battery will not charge above 30% State … Read more

N222383780 High Voltage Connector Fasteners Improperly Torqued – 2017-2019, 2022-2023 Chevrolet Bolt EV & 2022-2023 Bolt EUV

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2023 Chevrolet Bolt EV

NHTSA ID Number: 10224354 Manufacturer Communication Number: N222383780 Summary Certain vehicles may have a condition in which fasteners used to secure an external connector to the high voltage battery pack may not have been torqued to specification. Dealers will secure all suspect connections to the appropriate torque specification.   Condition On certain 2017-2019, 2022-2023 Chevrolet Bolt EV, … Read more