# Service bulletin ITS61988

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: 11037437
- Published by NHTSA: 2026\-09\-22
- Manufacturer's number: ITS61988
- Manufacturer's date: 2026\-09\-15
- NHTSA component: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

## NHTSA's summary

Instruction to program for the addition of ESS cell minimum and maximum voltages and ESS charge current per customer request

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037437-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037437-9999.pdf)

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

## Components

Electrical system, Fuel system

## Vehicles listed

- 2021 NEW FLYER XE35
- 2023 NEW FLYER XE35
- 2021 to 2024 NEW FLYER XE40

JSON: [/v1/bulletins/11037437](/v1/bulletins/11037437)

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