March 4, 2020 Service bulletin

This technical bulletin provides repair information to correct a customer concern of hearing a wind...

GMC technical service bulletin 20NA035 for 2020 GMC Sierra 2500 and 2020 GMC Sierra 3500.

Bulletin number: 20NA035
Component: Structure: body: hood
Summary: This technical bulletin provides repair information to correct a customer concern of hearing a wind whistle noise from front of vehicle while driving.

Owners of these vehicles have filed 11 complaints in the body category.

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