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Service bulletin FT4551

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 id10155329
Published by NHTSA2019-03-25
Manufacturer's numberFT4551
Manufacturer's date2019-02-19
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Replace the affected Signal and Ground wires by New kit of Kidde.

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

Electrical system, Equipment and accessories

Vehicles listed
NOVA BUS LFS2015, 2016

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

Recalls for the same vehicles and component
22V3230002022-05-11. EQUIPMENT; EXTERIOR LIGHTING
20V3540002020-06-15. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; ELECTRICAL SYSTEM:SOFTWARE
19V2740002019-04-05. ELECTRICAL SYSTEM
18V8290002018-11-26. ELECTRICAL SYSTEM:SOFTWARE
20182872018-05-31. Electrical
17V3230002017-05-16. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; ELECTRICAL SYSTEM
16V4120002016-06-08. EQUIPMENT
16V0680002016-02-05. ELECTRICAL SYSTEM:WIRING

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
BS5463ER12024-04-30. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
BS5463E2023-12-22. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
FT54632023-09-26. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
FT52422023-02-25. Service bulletin. ECP radiator failures deemed to be due to overpressure events.
FT52432023-02-25. Service bulletin. ECP radiator failures deemed to be due to overpressure events.
APS5370E2023-02-24. Service bulletin. The Delco-Remy alternator is obsolete. Air cooled ductless (Almott) alternator, power cable and hardware kit to replace the Delco-Remy oil-cooled alternator.
LI5228E2022-05-05. Service bulletin. DEF tank Head Unit GEN4 N8900882 is no longer available in service, it is replace by the new DEF tank Head Unit GEN5 N8910051
BS5210ER12022-04-05. Service bulletin. Horn may fail due to the low internal high heat resistance.
PC10332022-03-03. Service bulletin. Headlight Failure
BS5210E2022-03-03. Service bulletin. Horn may fail due to the low internal high heat resistance.