Squeak, Rattle or Creak Noise Originating from Second Row Seat Area – 2019-2021 Buick Enclave & Chevrolet Traverse

2021 Buick Enclave

NHTSA ID Number: 10199257 Manufacturer Communication Number: 21NA040 Summary This technical bulletin provides a procedure to repair a condition of Squeak, Rattle or Creak Noise Originating from Second Row Seat Area by following the procedure outlined within the bulletin.     Condition Squeak, rattle or creak noise coming from the second row seat area. This noise may … Read more

Whistle or Hoot/Woot Noise Heard from Under Vehicle in Cold Ambient Temperatures – 2019-2021 Cadillac XT4

2021 Cadillac XT4

NHTSA ID Number: 10199264 Manufacturer Communication Number: 21NA090 Summary This service bulletin provides a repair procedure to correct a customer concern of Whistle or Hoot/Woot Noise Heard from Under Vehicle in Cold Ambient Temperatures.     3 Affected Products Vehicle MAKE MODEL YEAR CADILLAC XT4 2019-2021   Condition Some customers may comment on a “whistle” or “hoot/woot” … Read more

Howl, Hoot or Whistle Type Noise when Driving in Crosswinds – 2020-2021 Chevrolet Silverado 1500

2021 Chevrolet Silverado 1500

NHTSA ID Number: 10198878 Manufacturer Communication Number: 21NA101 Summary This service bulletin provides a procedure to replace both front door seals to correct a customer concern of Howl, Hoot, or Whistle Type Noise when Driving in Crosswinds.   Condition Some customers may comment on a noise in high crosswinds originating from the vehicle “A” pillar area. The … Read more

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

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

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