WenmarOpen by Wenmar Pro

Service bulletin BS5320ER1

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 id10233268
Published by NHTSA2023-04-03
Manufacturer's numberBS5320ER1
Manufacturer's date2023-03-15
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

Fire light coming on in the dash, Fire detection system

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

Vehicles listed
NOVA BUS LFS2018, 2019, 2020, 2021, 2022, 2023
NOVA BUS LFS ARTIC2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
NOVA BUS LFS ARTIC2021, 2022

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

Recalls for the same vehicles and component
20264242026-09-03. Engine
26V5730002026-09-03. ENGINE AND ENGINE COOLING:COOLING SYSTEM
26V2750002026-04-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU)
20261072026-03-10. Engine
25V8220002025-11-28. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
20255392025-10-09. Engine
20255132025-09-25. Engine
20253472025-06-23. Electrical
20251762025-04-07. Electrical
25V2130002025-04-07. 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
BS5571E2024-04-30. Service bulletin. The HVAC generator engine pulley has bolts that are too long.
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.
FT5575E2024-04-30. Service bulletin. Rear Door Electrical Operator. Incorrectly adjusted door stops could mislead the system by indicating incomplete closure of the door.
BS5463ER12024-04-30. Service bulletin. Failure of camera bracket will cause the camera to swing while bus is in motion.
BS5572E2024-03-29. Service bulletin. Water Sensor in E-Steering Compartment.
BS5572E2024-03-29. Service bulletin. Water Sensor in E-Steering Compartment.
BS5438E2024-03-29. Service bulletin. Restricted access to the Modular Propulsion Control System (MPCS) makes decommissioning difficult and presents a risk of damaging the HV cables during handling or testing.
BS5561E2024-03-29. Service bulletin. Non-conforming Exterior speakers.
FT55672024-03-29. Service bulletin. Battery Unbalanced Light Logic with AGM Battery.
FT55502024-03-29. Service bulletin. The Parker PHD70 display might freeze or not work properly.