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Service bulletin LI4494E

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 id10188182
Published by NHTSA2021-03-04
Manufacturer's numberLI4494E
Manufacturer's date2021-02-26
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

Engine compartment junction block scheduled maintenance. This document is an addendum to Nova Bus Maintenance Manual section 19-401, outlining the need to monitor the condition of junction blocks and correct when required.

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, Engine, Equipment and accessories, Labels and manuals

Vehicles listed
NOVA BUS LFS2011
NOVA BUS LFS2015, 2016
NOVA BUS LFS2018
NOVA BUS LFS ARTIC2012
NOVA BUS LFS ARTIC2015, 2016, 2017, 2018 (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
23V6070002023-08-31. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
22V3230002022-05-11. EQUIPMENT; EXTERIOR LIGHTING
20V3540002020-06-15. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; ELECTRICAL SYSTEM:SOFTWARE
20191722019-04-05. Accessories
20191712019-04-05. Engine
19V2740002019-04-05. ELECTRICAL SYSTEM
18V8290002018-11-26. ELECTRICAL SYSTEM:SOFTWARE
20182872018-05-31. Electrical
20172642017-05-16. Engine
17V3230002017-05-16. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; ELECTRICAL SYSTEM

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.
LI5316ER22024-02-24. Service bulletin. Crank case vent (CCV) hoses may get damaged over time.
BS5463E2023-12-22. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
LI5427E2023-12-22. Service bulletin. Improved durability of engine-side heat exchanger hoses.
FT54332023-09-26. Service bulletin. Support for infotainement displays may crack. Overhead Screen Display (for 40' buses)
FT54342023-09-26. Service bulletin. Support for infotainement displays may crack. Overhead Screen Display (for 60' buses)
FT54632023-09-26. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
FT46512023-08-17. Service bulletin. Failure of DEF sensor GEN 6 within the expected 5-years lifespan.
LI5228ER22023-04-27. Service bulletin. DEF GEN4 tank, tank head and sensor will no longer be available in service
BS5320ER12023-04-03. Service bulletin. Fire light coming on in the dash, Fire detection system