March 1: GM Engine Failure Class Action Lawsuit Begins news | 4 days ago
February 28: GM Lifter Lawsuit Update: Motion to Sever Denied news | 5 days ago
February 21: GM Brake Booster Vacuum Pump Failures Cause Lawsuit news | 12 days ago
February 21: Recall: GM Rear Wheels Lockup While Driving recalls | 12 days ago
January 19: GM Engine Failure Recall Investigation Opened investigations | 45 days ago
Chevrolet TSB #20NA060
2020 Chevrolet Blazer
TSB Document:
Affected Component: BACK OVER PREVENTION
- Summary
- This technical bulletin provides a procedure to replace the front differential carrier sun gear if found the cause of the high pitch noise from the transmission.
Click a tab for more information.




