Clunk Noise | GM

Noise, Vibration, and/or Harshness Issues/Clunk Noise Heard During Coast Down Event – 2020-2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

March 5, 2022 by oemdtc

NHTSA ID Number: 10198888 Manufacturer Communication Number: 21NA120 Summary This technical bulletin provides the tech with a procedure to check if the transmission is the cause of the concern by checking the data. 4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2020-2021 GMC SIERRA 2500 2020-2021 Condition Some technicians or customers … Read more

Information on Driveline Clunk Noise – 2020 and Prior GM Passenger Cars and Trucks

January 20, 2020May 9, 2017 by oemdtc

NHTSA ID Number: 10168212 Manufacturer Communication Number: 990420002K Summary This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations. 532 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2019 BUICK ENCLAVE 2010-2020 BUICK ENCORE 2013-2020 BUICK ENVISION 2016-2020 BUICK LACROSSE 2010-2019 BUICK LUCERNE 2010-2012 BUICK REGAL 2011-2020 … Read more

Bump Feel Or Clunk Noise After A Stop – 2007-2021 Chevrolet Silverado & GMC Sierra

January 27, 2021July 1, 2016 by oemdtc

NHTSA ID Number: 10184142 Manufacturer Communication Number: PIT5161H Summary This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may … Read more