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April 23, 2020 Service bulletin

Updated DDC Field Service Campaign for GHG14 DETROIT DD13 with Two-Box Aftertreatment Software Reprogramming

Freightliner technical service bulletin D20M1 for 2013-2015 Freightliner Cascadia, 2013-2015 Freightliner Business Class M2 and 2013-2015 Western Star 4900 and others.

Bulletin number
D20M1
Component
Engine and engine cooling
Summary
Updated DDC Field Service Campaign for GHG14 DETROIT DD13 with Two-Box Aftertreatment Software Reprogramming. Certain Detroit Model Year 2013 to 2015 GHG14 DD13 engines that are registered in California will require reprogramming to a minimum of the MCM software version and fuel map version listed below: MCM Software Version 4.7.0.0 ZGS 005. Certain sections have been updated for clarity.

Owners of these vehicles have filed 6 complaints in the engine category.

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