WenmarOpen by Wenmar Pro

Service bulletin SB46-057

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 id10172280
Published by NHTSA2020-03-07
Manufacturer's numberSB46-057
Manufacturer's date2020-03-06
NHTSA componentSTEERING; SUSPENSION

NHTSA's summary

Service Bulletin for APS3 Steering Gear Calibration. Vehicles equipped with an APS3 steering gear require calibration when an axle alignment is performed. Calibration is also needed when servicing any steering or suspension components, frame extension bracket or wheels or tires.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering, Suspension

Vehicles listed
FREIGHTLINER CASCADIA2021

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

Recalls for the same vehicles and component
20230832023-02-20. Steering
20215452021-09-02. Steering
21V6890002021-09-02. STEERING:LINKAGES:DRAG:LINK:CONNECTION
20213042021-05-19. Steering
21V3690002021-05-19. STEERING:LINKAGES:TIE ROD ASSEMBLY
20212192021-04-12. Steering
21V2560002021-04-12. STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING:CRITICAL FASTENERS
20V6600002020-10-27. SUSPENSION:REAR:AXLE:SPINDLE

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
FleetCom_Frnt Susp Bush2026-03-05. Other. Fleet Communications for composite front suspension bushing
FleetCom_Pwr Steer Res2026-01-08. Other. Fleet Communications for Power Steering Resevoir - NTF Replacements
FleetCom_Frnt Susp Spring2026-01-08. Other. Fleet Communications for Cascadia Front Suspension Spring Pin Bushings
FleetCom_Bosch Steer Gear2025-12-05. Other. Fleet communications for Bosch Steering Gear Replacements
CXA 10_25_Front Shock2025-11-06. Other. CX Advocate for 18k Front Suspension Shock Absorbers
SF721-OWN LTR2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
SF721-DLR LTR2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
SF721-Bulletin2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
PB33-004-FTL2025-07-08. Service bulletin. Parts Bulletin for Tie Rod Assembly Part Breakdown
CXA 3_25_SAS01T to SAS03T2025-04-02. Other. CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)