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March 5, 2021 Service bulletin

Detroit Emission Recall for Certain Detroit DD5 quick launch engines that are registered in the state of...

Freightliner technical service bulletin D21R5 for 2017-2019 Freightliner Business Class M2.

Bulletin number
D21R5
Component
Engine and engine cooling
Summary
Detroit Emission Recall for Certain Detroit DD5 quick launch engines that are registered in the state of California will require reprogramming to a minimum of the MCM and ACM software versions.

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