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

General Motors

NHTSA ID Number: 10218883 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 in extremely cold … Read more

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 – 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 … Read more

Information on Summer Tire Performance and Tire Cold Weather Cracking – Buick Cadillac Chevrolet

2017 Chevrolet Corvette

NHTSA ID Number: 10183781 Manufacturer Communication Number: 130310001G   Summary This service bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use.     Cold Weather Operation These vehicles are all equipped with 3 season performance tires commonly referred to as “Summer Tires.” The rubber used … Read more