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Service bulletins for the 2020 Freightliner 114SD

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

182 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SB54-2902020-02-15. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.
WP20-001REV2020-02-15. Service bulletin. POWER TRAIN; LANE DEPARTURE; SUSPENSION; EQUIPMENT. Revision to a Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch. The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported coverages in OWL. Revisions are in blue.
20CSA-022020-02-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Customer Service Announcement reminding service locations to update their DiagnosticLink software. To maintain access to the Detroit server, all DiagnosticLink computers must be updated with the current version of DiagnosticLink software. all DiagnosticLink 8.08 installed versions will be disabled as of Tuesday, January 28, 2020.
20CSA-012020-02-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. Customer Service Announcement for a policy change regarding Detroit Service Information Bulletins (SIBs) will now have a 60-day expiration, starting on the release day of the bulletin. The intent of a SIB is to notify the service network of a major change to one or more service procedures. Do not save SIBs nor reference them for repairs, as they are uncontrolled and never updated.
WP20-0012020-01-21. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; SUSPENSION; LANE DEPARTURE. Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch. The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported extended coverages in OWL.
SB83-1192020-01-17. Service bulletin. VISIBILITY. Service Bulletin for A/C system receiver-drier replacement guidelines.
SB54-2902020-01-17. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin on guidelines for repairing or replacing an electrical harness.
WI19-0222020-01-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems
SB20-0872019-12-20. Service bulletin. ENGINE AND ENGINE COOLING. Service Bulletin for M2 Surge Tank Shunt Line Clamp Replacement. On some vehicles, the shunt line coolant hose is disconnecting from the surge tank and replacing the constant tension clamp with a Breeze® brand clamp resolves the issue.
SB54-3202019-11-20. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Service Bulletin for upgrading BHM software for switch expansion module fault SPN 698 FMI 7.
SB54-3192019-11-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Service Bulletin for severe duty main PDM installation for vehicles operating in severe moisture and/or corrosive environments.
SB98-0152019-11-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. Service Bulletin for paint finish standards. Delfleet One has been added for aftermarket use. This version replaces service bulletin dated May 5, 2017.
WP19-0192019-11-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Policy letter announcing service locations have 90 calendar days from delivery to open a repair order which Identifies and addresses discrepancies from the sales order.
SB54-3152019-11-02. Service bulletin. EQUIPMENT; POWER TRAIN; ELECTRICAL SYSTEM. Service Bulletin about the powertrain PDM and Main PDM bracket being modified to reduce stress and vibration to the Powertrain Power Distribution Module (PTPDM).
SB54-3082019-11-02. Service bulletin. EQUIPMENT. Service Bulletin revision to an earlier submission of SB54-308 for October 2019 (19MC2968). The prior submission added new screenshots. This revision adds clarification for vehicle programming.
19-018WI2019-10-31. Service bulletin. EQUIPMENT. WARRANTY INFORMATION LETTER for coverage validation
SB54-3142019-10-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Service Bulletin describing changes made to the Powernet Distribution Box (PNDB) for better fuse retention.
19-016WP2019-10-30. Service bulletin. EQUIPMENT. WARRANTY POLICY LETTER- Hold disposition for Parts has been eliminated
SB54-3082019-10-30. Service bulletin. EQUIPMENT. Service bulletin describing that the DiagnoticLink screen images for Chassis ECU programming have ben updated.
SB98152019-10-30. Service bulletin. STRUCTURE. Service bulletin updating the Important Information section and adding instructions for proper visual inspection distance for paint finish standards.
19-015WP2019-10-29. Service bulletin. EQUIPMENT. Warranty Policy Letter- To assist customers and the service network regarding the Aftermarket Parts Limited Parts Warranty (Parts Warranty).
19TS-4REV2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. Technical Service Letter Revision on heavy duty coolant oil module and oil filter change. Older modules will not be compatible with newer module.
19TL-202019-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Australia Electrical Systems.
19TL-192019-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Chile and Italy Electrical Systems
19CSA-162019-10-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer Service Announcement that eParts is being retired and that PartsPro should be used instead for Detroit Engine Parts Information.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.