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RecallGazette

Vehicle problems, recalls & safety intelligence

FCCC XBP 2017–2021technical service bulletin

Bulletin 17TS-05REV2 · NHTSA communication 10181368 · issued Oct 20, 2020

Technical service bulletin
communication type
Electrical System
component
2017–2021
model years
57
vehicle entries

Official summary

Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.