Vibration

Diagnostic Information on Engine Vibration – 2014-2021 Cadillac Chevrolet GMC

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2021 Chevrolet Camaro

NHTSA ID Number: 10198880 Manufacturer Communication Number: 21NA109   Summary This service bulletin provides diagnostic information for a customer concern of engine vibration.     92 Affected Products Vehicles MAKE MODEL YEAR CADILLAC CTS 2015-2019 CADILLAC ESCALADE 2015-2021 CADILLAC ESCALADE ESV 2015-2021 CHEVROLET CAMARO 2016-2021 CHEVROLET CORVETTE 2016-2019 CHEVROLET EXPRESS 2016, 2018-2021 CHEVROLET SILVERADO 1500 2014, 2017-2021 … Read more

Vibration Type Noise Heard at Highway Speeds or with Engine Speed at 1,300-1,500 RPM – 2020-2021 Cadillac Chevrolet GMC

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2021 Cadillac XT6

NHTSA ID Number: 10198887 Manufacturer Communication Number: 21NA118   Summary This technical bulletin provides a procedure to align the exhaust causing a vibration.     8 Affected Products Vehicles MAKE MODEL YEAR CADILLAC XT5 2020-2021 CADILLAC XT6 2020-2021 CHEVROLET BLAZER 2020-2021 GMC ACADIA 2020-2021   Condition Some customers may comment on a vibration type noise at highway … Read more

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

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2021 Chevrolet Silverado

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

Vibration Caused by Tires – 2019-2022 Chevrolet Silverado 4500HD/ 5500HD/6500HD

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2022 Chevrolet Silverado MD 6500

NHTSA ID Number: 10222805 Manufacturer Communication Number: 21-NA-270 Summary This informational bulletin provides information for dealers/technicians on Vibration Caused by Tires.   Condition Some customers may comment on a vibration while driving.   Cause The cause of the condition may be that the wheel and tire assemblies require Road Force balance.   Correction Verify the vibration is … Read more

Fleet Vehicle Aftermarket Calibrations Speed Limited to 70 mph Reduced Power With No MIL or Vibration At Idle – 2015-2021 Chevrolet Colorado & GMC Canyon

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2021 Chevrolet Colorado

NHTSA ID Number: 10204457 Manufacturer Communication Number: PIP5830   Summary This Preliminary information communicates concerns created by an aftermarket ECM calibration installed by fleet companies.  The Fleet companies install aftermarket ECM calibrations to limit the vehicle speed to approximately 70 mph and reduce the over all power output. This calibration also reduces the engine idle speed and may induce a vibration … Read more