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Service bulletin BS4051E

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 id10110108
Published by NHTSA2017-08-03
Manufacturer's numberBS4051E
Manufacturer's date2017-05-31
NHTSA componentEQUIPMENT; SERVICE BRAKES

NHTSA's summary

Interlock brake is activated when the B-bus network is disconnected or lost

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

Brakes, Equipment and accessories

Vehicles listed
NOVA BUS LFS2010 to 2014
NOVA BUS LFS2015, 2016
NOVA BUS LFS ARTIC2013 to 2014
NOVA BUS LFS ARTIC2016 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
26V3550002026-06-02. SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
20244252024-07-25. Brakes
24V5580002024-07-25. SERVICE BRAKES, AIR:DISC:CHAMBER
22V3230002022-05-11. EQUIPMENT; EXTERIOR LIGHTING
20182572018-05-14. Brakes
18V2990002018-05-07. SERVICE BRAKES, AIR:DISC:CALIPER
16V4120002016-06-08. EQUIPMENT

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
FT54632023-09-26. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
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.
BS5119E2021-08-02. Service bulletin. Brake chambers may fail and cause the drive axle brakes to overheat
FT5055R12021-06-02. Service bulletin. Disconnect the power for the auxiliary heater. short term countermeasure
ft50902021-06-02. Service bulletin. Kidde fire suppression system tamper seal
BS3465ER12021-05-24. Service bulletin. Articulation ACU and solenoid Justify Articulation solenoid circuit may cause an error code in ACU.
PC10202021-04-02. Service bulletin. brakes standard repair
FT50552021-04-02. Service bulletin. Disconnect the power (auxiliary heater), short term countermeasure
FT4389R12021-04-02. Service bulletin. ITS Box Shelves Loose