# Service bulletin SMB179

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: 10159335
- Published by NHTSA: 2019\-05\-01
- Manufacturer's number: SMB179
- Manufacturer's date: 2019\-04\-17
- NHTSA component: ELECTRICAL SYSTEM; SERVICE BRAKES, AIR; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Service Manual Bulletin \- revised troubleshooting charts for MGM E\-Stroke brake monitoring system

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159335-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159335-9999.pdf)

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

## Components

Brakes, Electrical system

## Vehicles listed

- 2008 NEW FLYER XCELSIOR
- 2009 to 2019 NEW FLYER XCELSIOR

## Other bulletins for the same vehicles and component

- [TSIB 26\-08](/bulletins/11036148.md), 2026-08-12, Service bulletin: SERVICE BRAKES. This bulletin introduces new improved banjo bolts for buses equipped with a Haldex tandem air dryers. The updated banjo bolts feature enhanced corrosion resistance and are designed to replace the current banjo bolts to help minimize corrosion\-related issues that may affect air dryer performance and reliability.
- [TSIB 26\-06](/bulletins/11032698.md), 2026-05-14, Service bulletin: ELECTRICAL SYSTEM. Bulletin to follow when replacing LV batteries on buses equipped with certain Vanner battery equalizers.
- [TSIB 22\-07](/bulletins/10219149.md), 2022-09-02, Service bulletin: SERVICE BRAKES, AIR. This Technical Service Information Bulletin \(TSIB\) \- New Flyer has developed several maintenance updates for Xcelsior buses specifically equipped with the optional Powerex electric air compressors. This TSIB introduces field modifications in order to simplify maintenance operations and/or improve compressor longevity
- [TSIB 15\-07](/bulletins/10194272.md), 2021-05-24, Service bulletin: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Alternator Power Cable Support Inspections
- [TSIB 21\-03](/bulletins/10191836.md), 2021-05-06, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Technical Service Information Bulletin revising the lubrication schedule for the scroll bearing on specifically equipped vehicles with the Powerex direct drive electric air compressor.
- [SMB195](/bulletins/10191832.md), 2021-05-06, Service bulletin: ELECTRICAL SYSTEM. This Service Manual Bulletin provides additional information regarding the 6,000 mile Preventative Maintenance requirements for the low voltage battery system.
- [SMB151](/bulletins/10095882.md), 2017-03-20, Service bulletin: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. SERVICE MANUAL BULLETIN \- FRONT \& REAR DISC BRAKE INSTALLATION.
- [SMB149](/bulletins/10095865.md), 2017-03-20, Service bulletin: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SUSPENSION:FRONT:WHEEL BEARING. SERVICE MANUAL BULLETIN \- MAN AXLE FRONT \& REAR WHEEL BEARING INSPECTION.
- [TSIB 15\-07](/bulletins/10076193.md), 2016-07-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Alternator Power Cable Support Inspections New Flyer has observed several instances of chafing of the alternator power cable installations in certain of customers’ vehicles. New Flyer is issuing this Technical Service Information Bulleting to notify its customers of the potential for this chafing to occur in certain circumstances. In order to prevent chafing, New Flyer reminds customers that the inspection procedures described in the New Flyer Service Manuals relating to its vehicles must be followed before chafing issues manifest themselves and require extensive and/or expensive repairs. The inspection of alternator power cables is located in the Preventative Maintenance section of the New Flyer Service Manual for the vehicle and is to be conducted during every 6,000 mile \(9,600km\) inspection.
- [SMB\-120](/bulletins/10050460.md), 2013-02-01, Service bulletin: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. NEW FLYER: AT TIME OF PUBLICATION, PREVENTIVE MAINTENANCE INFORMATION ON CALIPERS, BRAKE CHAMBERS, AND DISC BRAKE PADS, MAY NOT BE AVAILABLE AT TIME OF PUBLICATION. SERVICE MANUAL BULLETIN IS PROVIDING INFORMATION. MODEL XCELSIOR. NO MODEL YEARS LISTED. \*PE

JSON: [/v1/bulletins/10159335](/v1/bulletins/10159335)

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