Poor Engine Performance in Extremely Cold Weather Conditions for LSY Engines, Charge Air Cooler Icing, Malfunction Indicator Lamp (MIL) Illuminated – 2019-2021 Cadillac XT4

2021 Cadillac XT4

NHTSA ID Number: 10205561 Manufacturer Communication Number: 21NA229   Summary This service bulletin provides a procedure to install a winter grille cover to correct the customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing, Malfunction Indicator Lamp (MIL) Illuminated.     3 Affected Products Vehicle MAKE MODEL YEAR CADILLAC XT4 2019-2021 … Read more

Charge Air Cooler Icing During Extreme Cold Weather Conditions – 2019-2022 Cadillac XT4

2022 Cadillac XT4

NHTSA ID Number: 10205562 Manufacturer Communication Number: 21NA233 Summary This service bulletin advises the technician to order a winter grille cover if not found in vehicle or to install the cover one time. 4 Affected Products Vehicle MAKE MODEL YEAR CADILLAC XT4 2019-2022   Information The purpose of this bulletin is to: Verify that in extreme cold … Read more

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 … Read more

GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

2020 Buick Regal

NHTSA ID Number: 10178370 Manufacturer Communication Number: PIP5684B   Summary This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.   455 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2018 BUICK ENCLAVE 2010-2018 BUICK ENCORE 2013-2018 BUICK ENVISION 2016-2018 BUICK LACROSSE 2010-2018 BUICK … Read more