FCCC MT45 2020 — technical service bulletin
Bulletin 20OEM-04 · NHTSA communication 10176791 · issued Jun 25, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
24
vehicle entries
Official summary
OEM and distributor announcement for Running Change to ACM Software for MY2020. There is an upcoming running change (RC1) for ACM software that will be installed when OEMs or distributors program with DiagnosticLink. The hardware part number for the ACM module will remain the same (A 000 446 97 54). OEMs are instructed to continue ordering the same ACM hardware part number.
Vehicles covered
- 2020 FCCC MT45
- 2020 FCCC MT55
- 2020 FCCC S2G
- 2020 FCCC S2RV
- 2020 FCCC XBP
- 2020 FCCC XBR
- 2020 FCCC XBS
- 2020 FCCC XCL
- 2020 FCCC XCM
- 2020 FCCC XCP
- 2020 FCCC XCR
- 2020 FCCC XCS
- 2020 Freightliner 108SD
- 2020 Freightliner 114SD
- 2020 Freightliner 122SD
- 2020 Freightliner Business Class M2
- 2020 Freightliner Cascadia
- 2020 Freightliner Econic SD
- 2020 Thomas Built Buses Saf-T-Liner C2
- 2020 Western Star 4700
- 2020 Western Star 4800
- 2020 Western Star 4900
- 2020 Western Star 5700
- 2020 Western Star 6900
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.