# Service bulletin BS4818

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: 10174662
- Published by NHTSA: 2020\-05\-05
- Manufacturer's number: BS4818
- Manufacturer's date: 2020\-04\-20
- NHTSA component: EQUIPMENT; ELECTRICAL SYSTEM

## NHTSA's summary

Communication to the auxiliary heater cannot be done through the rear engine control box.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174662-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174662-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2018 NOVA BUS LFS

## Recalls for the same vehicles and component

- [23V607000](/recalls/nhtsa/23V607000.md), 2023-08-31: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
- [22V323000](/recalls/nhtsa/22V323000.md), 2022-05-11: EQUIPMENT; EXTERIOR LIGHTING
- [20V354000](/recalls/nhtsa/20V354000.md), 2020-06-15: STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; ELECTRICAL SYSTEM:SOFTWARE
- [19V274000](/recalls/nhtsa/19V274000.md), 2019-04-05: ELECTRICAL SYSTEM
- [18V829000](/recalls/nhtsa/18V829000.md), 2018-11-26: ELECTRICAL SYSTEM:SOFTWARE
- [2018287](/recalls/tc/2018287.md), 2018-05-31: Electrical

## Other bulletins for the same vehicles and component

- [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.
- [BS5463E](/bulletins/10247616.md), 2023-12-22, Service bulletin: VISIBILITY; ELECTRICAL SYSTEM. Failure of camera bracket will cause the camera to swing while bus is in motion.
- [FT5433](/bulletins/10242853.md), 2023-09-26, Service bulletin: ELECTRICAL SYSTEM. Support for infotainement displays may crack. Overhead Screen Display \(for 40' buses\)
- [FT5434](/bulletins/10242852.md), 2023-09-26, Service bulletin: ELECTRICAL SYSTEM. Support for infotainement displays may crack. Overhead Screen Display \(for 60' buses\)
- [FT5463](/bulletins/10242846.md), 2023-09-26, Service bulletin: VISIBILITY; EQUIPMENT. Failure of camera bracket will cause the camera to swing while bus is in motion.
- [BS5320ER1](/bulletins/10233268.md), 2023-04-03, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Fire light coming on in the dash, Fire detection system
- [FT5243](/bulletins/10231883.md), 2023-02-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. ECP radiator failures deemed to be due to overpressure events.
- [APS5370E](/bulletins/10231881.md), 2023-02-24, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The Delco\-Remy alternator is obsolete. Air cooled ductless \(Almott\) alternator, power cable and hardware kit to replace the Delco\-Remy oil\-cooled alternator.
- [BS5320E](/bulletins/10227046.md), 2022-12-03, Service bulletin: ELECTRICAL SYSTEM. Fire light coming on in the dash. Addition of a bracket so water won’t drip on temperature sensor.
- [BS5300E](/bulletins/10222267.md), 2022-10-03, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT. HVAC deflectors are breaking at the folded attachment points. The brackets broke right at the bending due to a sharp curve

JSON: [/v1/bulletins/10174662](/v1/bulletins/10174662)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20BS4818&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10174662&vehicle=Service%20bulletin%20BS4818)