2016

Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated – DTC P0442 and/or P0455 Set – 2000-2021 Buick Cadillac Chevrolet GMC

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2021 Chevrolet Camaro

NHTSA ID Number: 10198890 Manufacturer Communication Number: 21NA124   Summary This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.     1024 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2019 BUICK CENTURY 2000-2005 BUICK ENCLAVE … Read more

Information on General Guidelines to Address Sunroof Waterleak Issues – 2016-2020 Cadillac CT6

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2020 Cadillac CT6

NHTSA ID Number: 10205578 Manufacturer Communication Number: 21NA258   Summary This service bulletin provides information for dealers/technicians on General Guidelines to Address Sunroof Waterleak Issues.     5 Affected Products Vehicle MAKE MODEL YEAR CADILLAC CT6 2016-2020   Condition Some customers may comment on seeing water leaking from the sunroof area. Customers may also comment on hearing … Read more

Diagnostic Tip on Speed Limited Message or Reduced Propulsion Power Message Displayed on Driver Information Center (DIC) with no DTCs Set – 2016-2019 Chevrolet Volt

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2019 Chevrolet Volt

NHTSA ID Number: 10205579 Manufacturer Communication Number: 21NA259   Summary This service bulletin provides diagnostic information to correct customer concerns of Speed Limited Message or Reduced Propulsion Power Message Displayed on Driver Information Center (DIC) with no DTCs Set.     4 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET VOLT 2016-2019   Condition Some customers may comment … Read more

Lack of Power or Poor Performance During High Ambient Temperatures with RPO (C7N) 12,300 LB GVWR or (C4M) 9,900 LB GVWR – 2016-2020 Chevrolet Express & GMC Savana

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2020 Chevrolet Express

NHTSA ID Number: 10205580 Manufacturer Communication Number: 21NA260   Summary This technical bulletin provides repair information to correct a customer concern of Lack of Power or Poor Performance During High Ambient Temperatures with RPO (C7N) 12,300 LB GVWR or (C4M) 9,900 LB GVWR.     10 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET EXPRESS 2016-2020 GMC SAVANA … Read more

Poor Engine Performance in Extremely Cold Weather Conditions for LE2 Engines, Charge Air Cooler Icing – Malfunction Indicator Lamp (MIL) Illuminated, DTC P0299, P0234, P0236, P2227, P00C7 Set – 2016-2022 Buick Encore & 2021-2022 Chevrolet Trax

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2022 Buick Encore

NHTSA ID Number: 10222826 Manufacturer Communication Number: 17-NA-221 Summary This service bulletin provides repair procedures to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions for LE2 Engines, Charge Air Cooler (CAC) Icing – Malfunction Indicator Lamp (MIL) Illuminated.   Condition Some customers may comment that when driving short distances and/or slow speed driving … Read more