WenmarOpen by Wenmar Pro

Service bulletins for the 2016 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.

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

By type

By component

Bulletins, newest first
TechTalk566069K2021-05-06. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on being Stuck in Emergency Power Supply mode.
TechTalk566061K2021-05-06. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on EGR fail's to learn.
TechTalk566183K2021-05-06. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on fault codes SPN-5246 FMI-16, SPN-5246 FMI-15, SPN-4364 FMI-18, SPN-3364 FMI-2.
TechTalk566600K2021-05-05. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on SPN 91 FMI 8, SPN 111 FMI 3, RAC System Failure HSA and Check Engine (amber) ON.
SS3075-FTL20212021-05-01. Service bulletin. POWER TRAIN. Service Solution for FTL DT12 Trans Control Harness Chaffing - PT Can faults. Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes.
D21M12021-05-01. Service bulletin. POWER TRAIN. Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in order to reseal the bypass plugs of the drive shaft cover located in front housing.
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.
WI21-0082021-04-23. Service bulletin. EQUIPMENT. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
DT12 Trans Chafe2021-04-08. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not received by the Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.
SB83-1552021-03-26. Service bulletin. EQUIPMENT. Updated Freightliner Service Bulletin for Espar Service Information. This bulletin replaces the version dated January 1, 2015. New Cascadia has been added to the model list.
WP21-0072021-03-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.
sb542982021-03-15. Service bulletin. ENGINE. sb54298 GHG17 Heavy Duty Engine Platform Vehicle Dash Oil
0806-172021-03-15. Service bulletin. EQUIPMENT. 0806-17 SPN 101 (MCM)(GHG17)
0803-172021-03-15. Service bulletin. EQUIPMENT. 0803-17 SPN 411 (MCM) (GHG17)
17TS12Rev12021-03-15. Service bulletin. ENGINE. 17TS12Rev1 GHG17 Heavy Duty Engine Platform 1-BOX? Aftertreatment System ATS Wire Harness
TechTalk81112021-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on lack of communication with ACM and MCM.
WI21-0042021-03-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12 posters.
ICI21-005 D19M72021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Important Campaign Information Letter announcing that a revision for Detroit Diesel Field Service Campaign D19M7. This letter is to inform you that Detroit Field Service Campaign D19M7 REV2, Pre-Series Cascadia Emission Label Replacement has been EXTENDED for an additional four months and re-activated on DTNA Connect. Please use the extended termination date for all work under D19M7 REV2 from this point forward.
D19M7REV22021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Revision for Field Service Campaign for pre-series Cascadia and New Cascadia Emission Label replacement. Additional sections have been updated.
TechTalk80952021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on DD13 GHG 17 long block dressed as a GHG14
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.
SS10347612021-02-27. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Solution for P3 - CEL On and Engine de-rate due to ATD Chassis Harness Circuit 532M5+ at DEF Heater Supply location is shorted.
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.
ICI21-0032021-02-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately. This letter supersedes ICI20-022R.

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