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October 26, 2020 Service bulletin

This informational bulletin explains how to check the NOx Catalyst Reductant-Load Adaptive Values using GSD2.

Chevrolet technical service bulletin 17NA393 for 2017-2018 Chevrolet Silverado 1500, 2017-2021 Chevrolet Silverado 2500 and 2017-2019, 2021 GMC Sierra 2500 and others.

Bulletin number
17NA393
Component
Equipment adaptive/mobility
Summary
This informational bulletin explains how to check the NOx Catalyst Reductant-Load Adaptive Values using GSD2.

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