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August 17, 2020 Service bulletin

Detroit Emissions Recall for GHG21 Detroit DD13 Model Year 2020 Software Reprogramming

Freightliner technical service bulletin D20R1 for 2021 Freightliner Cascadia, 2021 Freightliner Business Class M2 and 2021 Western Star 4900 and others.

Bulletin number
D20R1
Component
Electrical system: software
Summary
Detroit Emissions Recall for GHG21 Detroit DD13 Model Year 2020 Software Reprogramming. Daimler Trucks North America LLC, on behalf of its Detroit Powertrain Division, has determined that some Model Year 2020 GHG21 DD13 engines require reprogramming of the MCM to meet certification.

Owners of these vehicles have filed 2 complaints in the electrical category.

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