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
| CXA_10_17_CARB Truck Chec | 2024-11-07. Other. ENGINE. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
|---|---|
| SS3155-FTL | 2024-11-06. Other. ENGINE; POWER TRAIN. Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed |
| SS1023366-Detroit | 2024-11-06. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| PB01-009 | 2024-11-06. Other. ELECTRICAL SYSTEM. Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement |
| CXA 9_24_NFD fill plug | 2024-10-04. Other. POWER TRAIN. CX Advocate for NFD fill plugs |
| CXA 9_24_MDEG Updates | 2024-10-04. Other. ENGINE. CX Advocate for MDEG Updates |
| SS1023366-Detroit | 2024-10-04. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| CXA 8_24_MDEG Updates | 2024-09-07. Other. ENGINE. CX Advocate for MDEG Updates |
| CXA 8_24_Conmet Oil Pan | 2024-09-07. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures |
| TSB35-039-FTL | 2024-09-07. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management. Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated. |
| CXA 7_24_MDEG Updates | 2024-08-02. Other. ENGINE. CX Advocate for MDEG Updates |
| CXA 7_24_NOx | 2024-08-02. Other. ENGINE. CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission. |
| CXA 7_24_Conmet Oil Pan | 2024-08-02. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures |
| TSB35-039-FTL | 2024-08-02. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management. Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated. |
| CALFTL13-002 | 2024-08-02. Service bulletin. ENGINE. Customer Advisory Letter for Proactive Air Compressor, Resonator, and Suction Line Replacement |
| CXA 06_24_Clutch Bolts | 2024-07-09. Other. POWER TRAIN. CX Advocate communication for clutch bolts |
| CXA 06_24_NOx | 2024-07-09. Other. ENGINE. CX Advocate communication for NOx conversion low faults |
| VSWP Customer Letter | 2024-06-22. Other. ENGINE. Customer letter regarding variable speed water pump. |
| SF672 POSTCARD LARGE | 2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard large population |
| SF672 POSTCARD SMALL | 2024-06-07. Service campaign. ELECTRICAL SYSTEM. Field Service Campaign Owner Reminder Postcard small population |
| TSB35-042-FTL | 2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for New Final Drive Over Heat Diagnostic |
| TSB35-039-FTL | 2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management |
| SS3144-FTL | 2024-05-07. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller |
| ICI24-006 | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. Important Campaign Information letter for FL974 - Revised Bulletin & Population |
| FL974 | 2024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Confirm' has been added, as shown in Table 2, to be used when a new DEF header is not required. There have been some other minor changes to the work instructions and SRT times. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.