22-092-HUS – Electrical Harness May Short Circuit – 2006-2021 Micro Bird MBII & G5 Transit Buses

April 28, 2022 NHTSA CAMPAIGN NUMBER: 22V287000

Electrical Harness May Short Circuit

A damaged electrical harness may short circuit, increasing the risk of a fire.

 

NHTSA Campaign Number: 22V287

Manufacturer Corp. Micro Bird, Inc.

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 14,229

 

Summary

Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2006-2021 MBII and G5 transit buses. An inactive electrical harness that is secured in an opening in the B-pillar may become damaged from sharp edges inside the opening.

 

Remedy

Dealers will secure the electrical harness and remove the fuse linked to the main cable, free of charge. Owner notification letters were mailed on June 20, 2022. Owners may contact Micro Bird’s customer service at 1-819-477-2012. Micro Bird’s number for this recall is 22-092-HUS.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 


Micro Bird has decided that a defect which relates to motor vehicle safety exists in certain MBII and G5 models, year models 2006-2021, built on GM chassis, and manufactured between September 1, 2005, and November 30, 2021.

In certain vehicles, a harness situated near the B-pilar and provided by GM in their chassis, remains unused when the final vehicle is completed. During manufacture, this harness is secured in an opening in the B-pilar. Some edges around and inside the opening may be sharp and the harness may be damaged and become frayed.

If the harness becomes frayed while the cables forming the harness are still connected, a short-circuit may occur, increasing the risk of fire in the vehicle.

 


Chronology :

While investigating the cause of an incident where smoke emitting from the B pillar was observed in a parked and empty MY2014 bus built on a GM chassis, in August 2021, a harness installed by GM in their chassis that remains unused after completion of our vehicles was identified as possibly implicated. No claim was submitted to Micro Bird in regard with that incident. Without waiting for the conclusion, as a pre-emptive measure, we decided in December 2021 to apply a new method to secure harness and to remove the fuse linked to the main cable of the harness on the production line for all vehicles built on GM chassis.

Even though independent investigation had concluded that the causes were not related to Micro Bird, rather pointing to the fact that the final user had installed an A/C system and strobe light after delivery, we decided to review a previous incident where a MY2016 bus, also built on a GM chassis, had caught fire in Augusta, ME in April 2018. This incident had also occurred while the bus was in a parking lot. No claim was submitted to Micro Bird in regard with that incident.

On April 21st 2022, it was decided to make the new method to secure the harness permanent and to recall the vehicles built on a GM chassis having the identified harness.

We have received no claim regarding thermal incident or fire, nor any other such incident has been reported for vehicles built on GM chassis. The reported incidents have not caused any injury or death.

 


32 Affected Products

Vehicles

MAKEMODELYEAR
MICRO BIRDG52006-2021
MICRO BIRDMB II2006-2021

 


9 Associated Documents

Recall Acknowledgement

RCAK-22V287-2395.pdf 647.272KB

 


Defect Notice 573 Report

RCLRPT-22V287-2203.PDF 213.276KB

 


Recall 573 Report- 05/05/2022

RCLRPT-22V287-1410.PDF 214.102KB

 


Manufacturer Notices(to Dealers,etc)

RCMN-22V287-6939.pdf 137.735KB

 


Recall 573 Report-06/17/2022

RCLRPT-22V287-1211.PDF 214.249KB

 


ISSUED Owner Notification Letter(Part 577)

RCONL-22V287-5781.pdf 213.978KB

 


Recall Quarterly Report #1, 2022-2

RCLQRT-22V287-3671.PDF 211.144KB

 


Recall Quarterly Report #2, 2022-3

RCLQRT-22V287-9722.PDF 211.252KB

 


Recall Quarterly Report #3, 2022-4

RCLQRT-22V287-3892.PDF 211.342KB

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V287&docType=RCL

 


 

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