# Service bulletin BS4757E

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: 10210976
- Published by NHTSA: 2022\-05\-05
- Manufacturer's number: BS4757E
- Manufacturer's date: 2022\-04\-07
- NHTSA component: EQUIPMENT; SERVICE BRAKES, AIR

## NHTSA's summary

Replace the 50 PSI interlock pressure regulator for a 65 PSI interlock pressure regulator

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210976-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210976-9999.pdf)

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

## Components

Brakes, Equipment and accessories

## Vehicles listed

- 2019 NOVA BUS LFS

## Recalls for the same vehicles and component

- [26V355000](/recalls/nhtsa/26V355000.md), 2026-06-02: SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
- [24V657000](/recalls/nhtsa/24V657000.md), 2024-09-09: EQUIPMENT:ELECTRICAL; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT
- [2024426](/recalls/tc/2024426.md), 2024-07-25: Brakes
- [2024425](/recalls/tc/2024425.md), 2024-07-25: Brakes
- [24V559000](/recalls/nhtsa/24V559000.md), 2024-07-25: SERVICE BRAKES, AIR:DISC:CHAMBER
- [24V558000](/recalls/nhtsa/24V558000.md), 2024-07-25: SERVICE BRAKES, AIR:DISC:CHAMBER
- [22V323000](/recalls/nhtsa/22V323000.md), 2022-05-11: EQUIPMENT; EXTERIOR LIGHTING

## Other bulletins for the same vehicles and component

- [BS5357E](/bulletins/10233270.md), 2023-04-03, Service bulletin: EQUIPMENT. Lexan panels cracking at mounting holes. Need to change the attachment of Lexan panels due to apparent cracks.
- [BS5356E](/bulletins/10233269.md), 2023-04-03, Service bulletin: EQUIPMENT. Lexan panels cracking at mounting holes. Need to change the attachment of Lexan panels due to apparent cracks.
- [LI5315E](/bulletins/10224817.md), 2022-10-27, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. On the Thermo King HVAC roof unit, after replacing the actuator N8897109, some customers could see the error code 36.
- [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
- [BS5299E](/bulletins/10222266.md), 2022-10-03, Service bulletin: EQUIPMENT. HVAC deflectors are breaking at the folded attachment points. The brackets broke right at the bending due to a sharp curve
- [BS5210ER1](/bulletins/10209688.md), 2022-04-05, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. Horn may fail due to the low internal high heat resistance.
- [BS5182E](/bulletins/10201888.md), 2021-10-05, Service bulletin: SERVICE BRAKES. Brake chambers may fail and cause the drive axle brakes to overheat.
- [BS5119E](/bulletins/10199701.md), 2021-08-02, Service bulletin: SERVICE BRAKES, AIR. Brake chambers may fail and cause the drive axle brakes to overheat
- [ft5090](/bulletins/10194787.md), 2021-06-02, Service bulletin: EQUIPMENT. Kidde fire suppression system tamper seal
- [ft5068](/bulletins/10191638.md), 2021-05-04, Service bulletin: SERVICE BRAKES, HYDRAULIC. Hydraulic Tank Rubber Mount Bushing Failures

JSON: [/v1/bulletins/10210976](/v1/bulletins/10210976)

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