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March 3, 2020 Service bulletin

This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the...

Chevrolet technical service bulletin 20NA050 for 2019-2020 Chevrolet Silverado 1500, 2019-2020 Chevrolet Tahoe and 2019-2020 GMC Sierra 1500 and others.

Bulletin number
20NA050
Component
Equipment: other: owners/service/other manual
Summary
This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the customer has tried to shift the t-case from 4lo to Hi gears while driving.

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