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 …

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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 …

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Charge Air Cooler Icing During Extreme Cold Weather Conditions – 2020-2022 Buick Encore GX & Chevrolet Trailblazer

2021 Buick Encore GX

NHTSA ID Number: 10205054 Manufacturer Communication Number: 20NA028   Summary This service bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing.     5 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE GX 2020-2022 …

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