Malfunction Indicator Lamp (MIL) Illuminated During Engine Crank – DTC P0046 Set – 2017-2023 Chevrolet Silverado & GMC Sierra

2021 Chevrolet Silverado

NHTSA ID Number: 10222662 Manufacturer Communication Number: 21-NA-113 Summary This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.   Condition Some customers may comment that the MIL is illuminated. Some technicians may find DTC P0046 (Turbocharger Boost Control Position Performance) set in the Engine Control Module (ECM).   Cause This condition … Read more

Lack of Power, Reduce Power Displayed on Drivers Information Center (DIC), Rough Idle, Stabilitrak Light On, Malfunction Indicator Light (MIL) Illuminated – DTC P0014 , P0365, P0366, P06A3, P16A1 and/or P016A2 Set – 2015-2021 Chevrolet Colorado & GMC Canyon

2021 Chevrolet Colorado

NHTSA ID Number: 10198845 Manufacturer Communication Number: 18NA307   Summary This technical bulletin provides a procedure to locate and repair a possible short in the wiring harness located at the camshaft cover or the cylinder head.     14 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET COLORADO 2015-2021 GMC CANYON 2015-2021   Condition Some customers may comment … Read more

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

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

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

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