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January 22, 2021 Service bulletin

This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to...

Chevrolet technical service bulletin 21NA010 for 2014, 2017-2018 Chevrolet Silverado 1500, 2015-2018 Chevrolet Tahoe and 2014 GMC Sierra 1500 and others.

Bulletin number
21NA010
Component
Electrical system: software
Summary
This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to verify the codes do not return.

Owners of these vehicles have filed 1,546 complaints in the electrical category.

Vehicles covered

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