Recall 19V520 covers 52 2019 Micro Bird Mb Ii Transit Bus and Mb Ii School Bus vehicles for grounding-wire fire risk. Dealer repair is free.
Micro Bird is recalling 52 2019 Mb Ii Transit Bus and Mb Ii School Bus vehicles because activating the main battery cut-off switch can melt the propane conversion controller grounding wire. A melted grounding wire can short-circuit and raise the risk of an engine-compartment fire; the Micro Bird dealer repair will be free once available.
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What's wrong?
The main battery cut-off switch on the 2019 Micro Bird Mb Ii Transit Bus and Mb Ii School Bus is meant to shut down battery power when the bus is parked or being serviced. The propane conversion controller also needs a safe ground path, which gives electrical current a controlled route back to the battery ground. That ground path keeps the propane system electronics stable.
On affected buses, the propane conversion controller grounding wire is attached directly to the main battery ground post. When the main battery cut-off switch is activated, some equipment stays active instead of shutting down cleanly. That leaves current flowing through the wrong path, and the grounding wire can overheat, melt, and create a short circuit with a fire risk.
There is no warning sign before failure. The problem is tied to the electrical path when the battery cut-off switch is used, so an owner is not given a normal dashboard warning, sound, or driving feel before the wire overheats.
Who's affected?
Mb Ii Transit Bus and Mb Ii School Bus configurations share the same battery component.
| 2019 Micro Bird Mb Ii Transit Bus | battery |
|---|---|
| 2019 Micro Bird Mb Ii School Bus | battery |
| Units affected | 52 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
A melted grounding wire can create a short-circuit and increase the risk of a fire in the engine compartment. Treat this as a prompt to arrange service when the remedy is open, especially before heavy use. Repair will be free at any franchised Micro Bird dealer once available.
What should I do?
- Check your VIN to confirm your 2019 Micro Bird Mb Ii Transit Bus or Mb Ii School Bus is included in this recall.
- Wait for Micro Bird's repair notice before scheduling service if the dealer says the remedy is not open for your VIN.
- Contact a franchised Micro Bird dealer to ask about the free grounding-wire relocation that fixes the melting propane-conversion-controller ground wire.
- Reference recall number 19V520 when you call, and bring the Micro Bird owner notice mailed August 6, 2019 if you have it.
- Park away from structures and stop using the main battery cut-off switch if you smell smoke, see melted wiring, or notice signs of an engine-compartment short circuit.
What happens at the repair
Once Micro Bird opens the dealer process, a Micro Bird technician will relocate the propane conversion controller grounding so the grounding wire is not exposed to heat from the main battery cut-off switch. Parts and labor are covered by the recall once the repair is available. When you contact the dealer, ask whether the grounding relocation is ready for your VIN before arranging service.
Timeline
| July 11, 2019 | NHTSA published the recall |
|---|---|
| July 11, 2019 | Dealer notification began |
| July 16, 2019 | Dealer notification ended |
| August 6, 2019 | Owner notification mailed |
Frequently asked questions
What is recall 19V520?
Recall 19V520 covers 52 2019 Micro Bird Mb Ii Transit Bus and Mb Ii School Bus vehicles with propane power and a main battery cut-off switch. If that switch is activated, the propane conversion controller grounding wire can melt and create a fire risk in the engine compartment.
What should I do if my 2019 Micro Bird Mb Ii Transit Bus or Mb Ii School Bus is on this recall?
Check your VIN to confirm your specific bus is included in recall 19V520. If it is, contact a franchised Micro Bird dealer or Micro Bird customer service at 1-819-477-2012 to arrange the grounding-wire relocation. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Micro Bird's remedy says dealers will relocate the grounding free of charge. Reference recall 19V520 when you contact the dealer or Micro Bird customer service.
What is the safety risk?
The safety risk in recall 19V520 is an engine-compartment fire. When the main battery cut-off switch is activated, the propane conversion controller grounding wire can melt, causing a short circuit. If your VIN is included, arrange the free grounding relocation before regular service use.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/19V520000 |
|---|---|
| Micro Bird customer service | 1-819-477-2012 |
| NHTSA recall # | 19V520 |
| NHTSA recall # (full) | 19V520000 |
Source documents
-
Download Owner Notification Letter (PDF) - Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →