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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.

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By component

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
SB54-3582023-05-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Revised Freightliner Service Bulletin for Converting CTP1 to CTP2. Description of Revisions: This bulletin replaces the version dated 11/28/2022. The CTP replacement part number has been updated.
SB54-3582022-12-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Freightliner Service Bulletin for Converting CTP1 to CTP2.
SB54-2782021-05-24. Service bulletin. EQUIPMENT:ELECTRICAL. Powernet Troubleshooting Guide: Batteries, Path, Alternator, and Starter
SB20-582021-05-24. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; EQUIPMENT. Early EPA07 QLD Radiator Replacement. As part of the changes made for early production EPA07 engines, the transmission oil cooler was moved into the radiator, and transmission oil cooler lines equipped with Gates Quick-Detach (QLD) connectors were fitted.
FTLCAE167-20162021-05-17. Service bulletin. VISIBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Important Update for Parked HVAC System Options
TSN 32-06 REV A2021-05-13. Service bulletin. SUSPENSION; EQUIPMENT. TSN for all Cascadia vehicles equipped with Airliner 40K and 40K extra duty rear suspensions - Customer complaints of loose fasteners at the rear suspension crossmember where the c-channel attaches to the gussets
TSN 31-102021-05-13. Service bulletin. EQUIPMENT; STRUCTURE. TSN for all Cascadia vehicles equipped with the inverted U end of frame closing crossmember.- Customer complaints of loose fasteners at the end of frame closing crossmember where the c-channel attaches to the gussets.
TSN 31-092021-05-13. Service bulletin. TRAILER HITCHES; EQUIPMENT. TSN for all Cascadia vehicles equipped with plate mounted fifth wheels and outboard mounting angles - Customer complaints of loose fasteners at the fifth wheel plate to outboard angles.
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.
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)
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.
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.
WI20-014R2021-02-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes. Revisions are in blue font.
21TS-032021-02-04. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Technical Service Letter for GHG17 1-Box Inlet and Outlet Exhaust Clamps. There is a short supply of exhaust clamps, part number DDE A6809950502, used as inlet and outlet exhaust clamps on GHG17 heavy duty engines (DD13, DD15 and DD16) with a 1-Box aftertreatment configuration. Exhaust clamp part number TCX T130158342AC2 may be used as a substitute for DDE A6809950502, but be aware of the different torque specs between the two parts.
21TS-012021-01-28. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.
WI21-0032021-01-28. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. Warranty Information Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.
WI21-0012021-01-26. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Warranty Information Letter for Detroit New Service Replacement Engine SRT Update. While validating Standard Repair Times (SRTs) for Detroit's new Gen 5 engine series, DTNA discovered an error in a pre-Gen 5 SRT for the New Service Replacement Engine Program. As a result, DTNA re-studied the SRT and concluded that time for removing/re-installing multiple components (e.g., exhaust manifold/turbo, engine sensor harness, rocker arm assemblies, etc.) should not be included.
WP20-0182020-12-12. Service bulletin. STEERING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one (1) or two (2) years and current parts, labor, and reimbursement policies apply.
18SP7442020-12-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
TechTalk78642020-12-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. Tech Talk discussion on 2016 Freightliner Blower Motor INOP.

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