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March 9, 2020 Service bulletin

This technical bulletin provides a procedure to replace the front differential carrier sun gear if found the

Chevrolet technical service bulletin 20NA060 for 2020 Chevrolet Blazer, 2020 GMC Acadia and 2020 Cadillac XT5 and others.

Bulletin number
20NA060
Component
Power train: automatic transmission
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.

Owners of these vehicles have filed 114 complaints in the transmission category.

Vehicles covered

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