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Service bulletins for the 2014 Freightliner Cascadia

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.

904 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
D20M62020-08-31. Service bulletin. ENGINE AND ENGINE COOLING. Detroit Diesel Field Service Campaign for DETROIT Reman Built HDEP Engines - Incorrect Gear Train Bolt Torque. The gear train mounting bolts need to be checked for proper torque and adjusted as needed.
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.
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.
D20M12020-04-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Updated DDC Field Service Campaign for GHG14 DETROIT DD13 with Two-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. Certain sections have been updated for clarity.
WI20-0042020-04-23. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Warranty Information Letter for Warranty Long Block Program Change. The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments.
ICI19-0532019-10-29. Service bulletin. ENGINE AND ENGINE COOLING. Important Campaign Information notice for field service campaign D18M3 being revised which added additional repair information,
D18M3REV12019-10-29. Service bulletin. ENGINE AND ENGINE COOLING. Field Service Campaign Revision for heavy duty engine platform oil suction manifold. Additional repairs section added.
19TL-182019-10-26. Service bulletin. ENGINE AND ENGINE COOLING. Tool Letter for updating Cascadia and Western Star 5700 oil-to-air coolers. To be used with service bulletins SB26-051 and SB26004 respectively.
17TS92019-10-25. Service bulletin. ENGINE AND ENGINE COOLING. Technical Service Letter communicating that information on DD Heavy Duty Platform Belt and Belt Tensioner can be found on TechLit.
DOC-10344922019-10-01. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Solution to fix coolant level wiring damage.
19TL-152019-09-28. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Tool Letter for ICC5 Programming Cable
CAL FTL 01-0012019-09-07. Service bulletin. ENGINE AND ENGINE COOLING. Customer Advisory Letter for Oil Suction Manifold Replacement
D18M3-REV 12019-09-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Revised Field Service Campaign for Heavy Duty Engine Platform Oil Suction Manifold on DD3, DD15, DD16 Engines for Model Year 2014
0609-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
0308-19 PTO2019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Information Bulletin regarding PTO Dosing. This feature enables Active Regeneration of the DPFs while in PTO mode.
0305-19 SPN 20002019-08-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service Information Bulletin for Communication Loss with a Common Powertrain Controller (CPC) Module (CPC Heartbeat Message is no Longer Arriving)
0607-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Information Bulletin to updated the Fuel Injector Harness sections and relocated to Engine Electrical section.
0107-19 GHG172019-08-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING. Service Bulletin to testing of EGR Cooler Water Manifold Assembly in DD13 engines.
SPN 3563 / FMI 22019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed.
19TS-62019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. The modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
0419-19SPN5210302019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Updates to troubleshooting guides in Diagnostic Link with newest version
18SP725Rev2019-08-07. Service bulletin. ENGINE; EQUIPMENT; FUEL SYSTEM, DIESEL. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
sb601582019-08-05. Service bulletin. ENGINE AND ENGINE COOLING. Marker Light Gasket Leaks, Cascadia
DOC-10342982019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Solution: 1034298 - New Cascadia Engine Harness Chafe at A06-95037-000 Bracket
GHG172019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Letter to customer on Coverage Extension GHG17 After Treatment

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