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Service bulletins for the 2015 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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
CXA 3_25_NOx2025-04-02. Other. ENGINE. CX Advocate for NOx conversion low faults
CXA 2_25_Turbo Oil Drain2025-03-04. Other. ENGINE. CX Advocate for turbo oil drain cracking
CXA 2_25_NOx2025-03-04. Other. ENGINE. CX Advocate for NOx conversion low faults
CXA 1_16_Turbo Oil Drain2025-01-29. Other. ENGINE. CX Advocate for turbo oil drain cracking
CXA 1_16_NOx2025-01-29. Other. ENGINE. CX Advocate for NOx conversion low faults
CXA 1_16_DD13 Altitude2025-01-29. Other. ENGINE. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
CXA 7_24_Oil Suction2024-08-02. Other. ENGINE. CX Advocate for Oil Suction manifolds
CXA 7_24_NOx2024-08-02. Other. ENGINE. CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
CXA 06_24_NOx2024-07-09. Other. ENGINE. CX Advocate communication for NOx conversion low faults
SB49-0422022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for DEF Connector Reinforcement Caps.
FAB1602021-05-18. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING. Freightliner Action Bulletin FAB160 Rock Guard
SB49342021-05-10. Service bulletin. ENGINE AND ENGINE COOLING. DEF Tank Coolant Valve O-Ring Kit
D21R12021-05-04. Service bulletin. ENGINE AND ENGINE COOLING. Detroit Emission Recall for GHG14 DETROIT DD13 with Two-Box Aftertreatment Software Reprogramming. Certain Detroit Model Year 2013 to 2015 GHG14 DD13 engines that are registered in the state of California will require reprogramming to a minimum of the MCM and ACM software versions.
16TS-08REV2021-04-24. Service bulletin. ENGINE AND ENGINE COOLING. Detroit Technical Service Letter for DD13 Cylinder Head and Cylinder Head Gasket Change.
WI21-0092021-04-24. Service bulletin. ENGINE AND ENGINE COOLING. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.
D21M22021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. DDC Field Service Campaign for GHG14 DETROIT DD13 with One-Box Aftertreatment Software Reprogramming. Certain Detroit Model Year 2013 to 2015 GHG14 DD13 engines that are registered in California will require reprogramming to a minimum of the MCM software version and fuel map version listed below: MCM Software Version 4.7.0.0 ZGS 005.
21OEM-062021-03-01. Service bulletin. ENGINE AND ENGINE COOLING. Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available. Current subscribers of DiagnosticLink 8.11 or 8.12 may upgrade to DiagnosticLink 8.13 at no cost. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.
SB54-3082021-02-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; EQUIPMENT. Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.
WI21-0062021-02-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
TechTalk76792020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
20CSA-152020-09-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack (SP) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.
20TS-052020-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility. Note: This document supersedes 14 TS-25 and 15 TS-8. Detroit Diesel has determined that some, Diesel Particulate Filters (DPFs) are compatible in pairs and or can be mixed together within EPA10 and GHG14 Systems. For 1-BOX and Two-Box Configuration Aftertreatment Systems (ATS), this is only possible when the filters are used in accordance with Tables 1 and 2 shown below. All other DPFs, NOT mentioned below, are NOT compatible.
20OEM-052020-07-31. Service bulletin. ENGINE AND ENGINE COOLING. OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.
20CSA-102020-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLinkî 8.12 Standard and Professional is available to download from the Detroit Diesel server.
TS10330142020-07-31. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.

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