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Service bulletin FT5448

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 id10244594
Published by NHTSA2023-11-01
Manufacturer's numberFT5448
Manufacturer's date2023-10-31
NHTSA componentENGINE AND ENGINE COOLING; STEERING

NHTSA's summary

Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances might not be respecting to the drawing specifications.

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

Engine, Steering

Vehicles listed
NOVA BUS LFS2020, 2021

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

Recalls for the same vehicles and component
25V8220002025-11-28. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
20253842025-07-22. Steering
25V4760002025-07-22. STEERING:ELECTRIC POWER ASSIST SYSTEM
24V2310002024-03-27. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
20226492022-11-15. Steering
22V8450002022-11-15. STEERING:CRITICAL FASTENERS
22V4160002022-06-13. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
20215682021-08-31. Steering
20214582021-07-27. Engine
20210572021-02-10. Steering

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
BS5580E2024-04-30. Service bulletin. One fire suppression system pipe may be installed backwards and interfere with an alternator cable, creating friction that could damage one or both components.
FT55542024-03-04. Service bulletin. The Cabin Coolant Level Sensors for the LOW and HIGH levels are swapped.
LI5316ER22024-02-24. Service bulletin. Crank case vent (CCV) hoses may get damaged over time.
BS5511E2023-12-22. Service bulletin. The EGR cooling hose N95062-48 is not rated for the engine compartment temperature. Under certain conditions the EGR cooling hose may crack and cause coolant leak.
LI5427E2023-12-22. Service bulletin. Improved durability of engine-side heat exchanger hoses.
BS5469E2023-12-22. Service bulletin. The belt guard hinge may crack.
BS5447E2023-11-01. Service bulletin. Rework allied motion e-Steering motor. 24V e-steering power supply threads length tolerances are not respect to standard.
FT46512023-08-17. Service bulletin. Failure of DEF sensor GEN 6 within the expected 5-years lifespan.
FT54052023-07-12. Service bulletin. Power steering lines chaffing the rear shell.
FT5404E2023-07-12. Service bulletin. There is a potential restriction of fluid due to an improperly placed clamp which could cause the power steering system to not operate has intended.