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Service bulletin SF-452A

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10041224
Published by NHTSA2011-09-21
Manufacturer's numberSF-452A
Manufacturer's date2011-06-01
NHTSA componentSUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

NHTSA's summary

DAIMLER TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THERE MAY BE INCORRECT REAR DRIVE AXLE ALIGNMENTS. *RM

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Suspension

Vehicles listed
FREIGHTLINER CASCADIA2010, 2011

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
11V1090002011-02-23. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY
20110752011-02-21. Suspension

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SB31-0432020-07-31. Service bulletin. Freightliner Service Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change. With the start of production on March 2, 2020, the fasteners used to assemble the non-Airliner rear suspension (bogie) crossmember have changed. The rear suspension bogie crossmember gussets to the C-channel will be assembled with 5/8 - 18 fasteners. This change includes a revision to a higher friction nut that requires an increase in tightening torque. The new higher friction nut can be identified by its green color.
DOC-10341712019-04-01. Service bulletin. SS 1034171 Airliner Rear Suspension Chassis Lean Troubleshooting
TSN 32-06 Airlin2018-12-10. Service bulletin. Technical Service Note: Airliner Rear Suspension Main Crossmember Fastener Replacement.
sb3125 AirLiner2018-12-10. Service bulletin. Service Bulletin: AirLiner Suspension Six-Piece Bolted Service Crossmember
sb310372018-10-29. Service bulletin. With the start of production on February 12, 2018, the fasteners used to assemble Airliner rear suspension crossmembers changed. The forward-suspension crossmember will assembled with 5/8-18 fasteners and the rear-suspension (bogie) crossmember will be assembled with 3/4-16 fasteners.
sb35292018-06-25. Service bulletin. sb3529 Axle Alignment Specifications
sb32512018-06-18. Service bulletin. sb3251 Replacing or Upgrading Airliner 40K Transverse Torque RodsB
sb32502018-06-18. Service bulletin. sb3250 Incorrect ECAS Ride Height Sensor and Linkage InstallationB
17TL252018-02-12. Service bulletin. 17TL25 TruckCam? Alignment System
4952014-05-07. Service bulletin. ELECTRONICALLY CONTROLLED AIR SUSPENSION IS BEING REPLACED. *LJ UPDATED 6/26/14. *PE UPDATED 7/3/14. *PE