March 1: GM Engine Failure Class Action Lawsuit Begins news | 8 days ago
February 28: GM Lifter Lawsuit Update: Motion to Sever Denied news | 9 days ago
February 21: GM Brake Booster Vacuum Pump Failures Cause Lawsuit news | 16 days ago
February 21: Recall: GM Rear Wheels Lockup While Driving recalls | 16 days ago
January 19: GM Engine Failure Recall Investigation Opened investigations | 49 days ago
GMC TSB #20NA035
2020 GMC Sierra 3500
TSB Document:
Affected 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.
Click a tab for more information.




