# Other MCD\-017

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: Other
- NHTSA id: 11036543
- Published by NHTSA: 2026\-09\-01
- Manufacturer's number: MCD\-017
- Manufacturer's date: 2026\-08\-28
- Campaign id or software version: MCD\-017
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## NHTSA's summary

On certain 2027 Allegro Bus motorhomes, the tail light parameters were not correct. The turn signal would activate correctly, but once the brake was applied the brake light would override the turn signal. Instead of updating the parameters in production, the wiring was modified.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036543-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036543-9999.pdf)

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

## Components

Electrical system, Lighting

## Vehicles listed

- 2027 TIFFIN ALLEGRO BUS

JSON: [/v1/bulletins/11036543](/v1/bulletins/11036543)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Other%20MCD-017&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11036543&vehicle=Other%20MCD-017)