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August 23, 2021 Service bulletin

Technical Service Letter for Detroit CPC501T GHG21 Only; Updating Bootloader Using DL version 8.14 and higher

Freightliner technical service bulletin 20TS-11 for 2020-2021 Freightliner Cascadia.

Bulletin number
20TS-11
Component
Engine and engine cooling
Summary
Technical Service Letter for Detroit CPC501T GHG21 Only; Updating Bootloader Using DL version 8.14 and higher. On Detroit powertrain equipped Cascadia’s, built in 2020, it may be necessary to complete an additional step in the programming process when updating the CPC501T software.

Owners of these vehicles have filed 3 complaints in the engine category.

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