# 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.

- Type: Service bulletin
- NHTSA id: 10233268
- Published by NHTSA: 2023\-04\-03
- Manufacturer's number: BS5320ER1
- Manufacturer's date: 2023\-03\-15
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

Fire light coming on in the dash, Fire detection system

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233268-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233268-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine

## Vehicles listed

- 2018 to 2023 NOVA BUS LFS
- 2019 to 2020 NOVA BUS LFS ARTIC
- 2021 to 2022 NOVA BUS LFS ARTIC

## Recalls for the same vehicles and component

- [2026424](/recalls/tc/2026424.md), 2026-09-03: Engine
- [26V573000](/recalls/nhtsa/26V573000.md), 2026-09-03: ENGINE AND ENGINE COOLING:COOLING SYSTEM
- [26V275000](/recalls/nhtsa/26V275000.md), 2026-04-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE \(HPCU\)
- [2026107](/recalls/tc/2026107.md), 2026-03-10: Engine
- [25V822000](/recalls/nhtsa/25V822000.md), 2025-11-28: ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
- [2025539](/recalls/tc/2025539.md), 2025-10-09: Engine
- [2025513](/recalls/tc/2025513.md), 2025-09-25: Engine
- [2025347](/recalls/tc/2025347.md), 2025-06-23: Electrical
- [2025176](/recalls/tc/2025176.md), 2025-04-07: Electrical
- [25V213000](/recalls/nhtsa/25V213000.md), 2025-04-07: ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [BS5571E](/bulletins/10253694.md), 2024-04-30, Service bulletin: ENGINE AND ENGINE COOLING. The HVAC generator engine pulley has bolts that are too long.
- [BS5580E](/bulletins/10253692.md), 2024-04-30, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. One fire suppression system pipe may be installed backwards and interfere with an alternator cable, creating friction that could damage one or both components.
- [FT5575E](/bulletins/10253691.md), 2024-04-30, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE. Rear Door Electrical Operator. Incorrectly adjusted door stops could mislead the system by indicating incomplete closure of the door.
- [BS5463ER1](/bulletins/10253690.md), 2024-04-30, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY. Failure of camera bracket will cause the camera to swing while bus is in motion.
- [BS5572E](/bulletins/10252145.md), 2024-03-29, Service bulletin: ENGINE AND ENGINE COOLING; UNKNOWN OR OTHER. Water Sensor in E\-Steering Compartment.
- [BS5572E](/bulletins/10252144.md), 2024-03-29, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING. Water Sensor in E\-Steering Compartment.
- [BS5438E](/bulletins/10252143.md), 2024-03-29, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES:FASTENER/CONNECTOR; POWER TRAIN. 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.
- [BS5561E](/bulletins/10252141.md), 2024-03-29, Service bulletin: ELECTRICAL SYSTEM. Non\-conforming Exterior speakers.
- [FT5567](/bulletins/10252140.md), 2024-03-29, Service bulletin: ELECTRICAL SYSTEM. Battery Unbalanced Light Logic with AGM Battery.
- [FT5550](/bulletins/10252139.md), 2024-03-29, Service bulletin: ELECTRICAL SYSTEM. The Parker PHD70 display might freeze or not work properly.

JSON: [/v1/bulletins/10233268](/v1/bulletins/10233268)

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