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Service bulletins for the 2012 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.

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

By type

By component

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
ICI22-0172022-05-03. Service bulletin. POWER TRAIN. Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.
FAB1582021-05-18. Service bulletin. POWER TRAIN. Freightliner Action Bulletin FAB158 Cummins Eaton SmartAdvantage
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.
TechTalk12291K2021-04-05. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Tech Talk discussion on not being able to do a forced regen because clutch is depressed.
Techtalk79002021-02-03. Service bulletin. POWER TRAIN. Tech talk continued discussion on 2021 Cascadia SOLO clutch not adjusting.
Techtalk79302020-12-31. Service bulletin. POWER TRAIN. Tech Talk discussion on Cascadia no power to clutch switch.
SB35-0362020-12-30. Service bulletin. POWER TRAIN. Revised Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Revision removed steps instructing removal and installation of wheels. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The new O-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.
WP20-018R2020-12-12. Service bulletin. STEERING; POWER TRAIN. Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. 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.
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.
TechTalk79002020-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Tech Talk discussion on 2012 Cascadia SOLO Clutch not adjusting.
SB35-0362020-10-12. Service bulletin. EQUIPMENT; POWER TRAIN. Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The new O-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.
PTO Pump Support2019-06-03. Service bulletin. POWER TRAIN. Rear PTO Pump Support CA
0604-172019-04-08. Service bulletin. POWER TRAIN. SPN 712 (CPC) (GHG17)
sb2652 DT12 PTO2019-04-01. Service bulletin. EQUIPMENT; POWER TRAIN. DT12 PTO Upfit
0109-192019-03-11. Service bulletin. POWER TRAIN. Service Information Bulletin- Input Shaft Pilot Bearing Measurement Specification
Detroit DT122019-03-11. Service bulletin. POWER TRAIN; POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT. Detroit DT12 Split Rod Bushing Repair letter to customer
SPN 191 13 and 82018-12-10. Service bulletin. POWER TRAIN. D12 Transmission issue communication on Cascadia
DOC-10336992018-12-10. Service bulletin. POWER TRAIN. TS 1033699: DT12 Transmission Driver Interview: Shifting Complaint Questionnaire
DOC-10334462018-12-10. Service bulletin. POWER TRAIN. Vehicles with Meritor drivelines bene from a softer durometer center bearing support. Vehicle will continue to have a 1st order driveline vibration after the driveline assembly was rebalanced.
DOC-10334462018-10-29. Service bulletin. POWER TRAIN. SS1033446 Driveline Support Bearing - Meritor Driveline
0405-182018-10-01. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY; POWER TRAIN. 0405-18 Symptom Diagnostics - Range Up or Down Shift Issue
25-342018-06-25. Service bulletin. POWER TRAIN. 25-34 - Clutch-Related No-Start Diagnostics
33-282018-06-25. Service bulletin. POWER TRAIN. 33-28 - Bearing Spacer Replacement, ConMet PreSet Steer Hubs
35-302018-06-25. Service bulletin. POWER TRAIN. 35-30 - Bearing Spacer Replacement, ConMet PreSet Drive Hubs

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