Recall 20V610 covers 75 2019 Micro Bird Mb Ii School and Transit buses for a propane-grounding defect. Repair is free at any franchised Micro Bird dealer.
Micro Bird is recalling 75 2019 Mb Ii School Bus and Mb Ii Transit Bus propane-powered buses because, after a propane conversion controller grounding wire relocation, turning off the main battery cut-off switch can make the propane module fail, preventing engine start or causing a short circuit. A short circuit increases the risk of a fire, and the Micro Bird dealer repair will be free once available.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The 2019 Micro Bird Mb Ii School Bus and Mb Ii Transit Bus use a propane conversion controller to manage the propane fuel system. That controller helps the propane system work with the engine controls so the engine can start and run on propane. Its grounding wire gives electrical current a safe return path, while the main battery cut-off switch disconnects battery power when the bus is shut down or serviced.
On affected buses, the controller ground was relocated to the cabin frame. When the main battery cut-off switch is deactivated, that grounding path can damage the propane module. The module can fail and keep the engine from starting, or the electrical fault can create a short-circuit. The filing also identifies a marginal fire risk from that short-circuit condition.
There is no warning sign before failure. The first sign for an owner or operator can be a no-start condition after the main battery cut-off switch has been turned off.
Who's affected?
Covers the school bus and transit bus versions, with the electrical system and fuel system listed for each.
| 2019 Micro Bird Mb Ii School Bus | electrical system |
|---|---|
| 2019 Micro Bird Mb Ii School Bus | fuel system |
| 2019 Micro Bird Mb Ii Transit Bus | electrical system |
| 2019 Micro Bird Mb Ii Transit Bus | fuel system |
| Units affected | 75 |
| 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 short circuit can increase the risk of a fire. If your VIN is included, schedule the recall repair promptly and ask the dealer whether the bus should stay out of service until it is repaired. 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 School Bus or Mb Ii Transit Bus is included in this recall.
- Contact Micro Bird customer service at 1-819-477-2012 for owner-notice and repair timing, and reference recall number 20V610 when you call.
- Ask a franchised Micro Bird dealer about the free ground-wire relocation that fixes the propane conversion controller ground path linked to no-start and short-circuit risk.
- Bring the recall notice if Micro Bird mailed one, along with any service records for propane conversion work.
- Keep the bus out of service if the propane module fails after the main battery cut-off switch is deactivated.
What happens at the repair
At the dealer, a Micro Bird technician relocates the propane conversion controller grounding wire. That repair addresses the grounding position tied to the no start condition and short circuit risk after the main battery cut off switch is deactivated. The final dealer repair will be free once available, with parts and labor covered under the recall. Ask the service desk to confirm that the ground relocation has been completed before the bus returns to service.
Timeline
| October 2, 2020 | NHTSA published the recall |
|---|---|
| October 19, 2020 | Dealer notification began |
| October 23, 2020 | Dealer notification ended |
| November 23, 2020 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 23, 2020 | Interim owner notification (was planned for this date) |
| December 1, 2020 | Owner notification mailed |
Frequently asked questions
What is recall 20V610?
Recall 20V610 covers 75 2019 Micro Bird Mb Ii School Bus and Mb Ii Transit Bus vehicles with propane conversion controller grounding wire routing that can damage the propane module after the main battery cut-off switch is deactivated. A short circuit increases fire risk. Dealers relocate the ground for free.
What should I do if my 2019 Micro Bird Mb Ii School Bus or Mb Ii Transit Bus is on this recall?
Check your VIN to confirm your specific bus is included in recall 20V610. If it is, contact a Micro Bird dealer to schedule the ground relocation. Reference recall number 20V610 or Micro Bird recall number 20-085-PUS when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to fix the defect at no cost. Micro Bird dealers will relocate the propane conversion controller ground free of charge, and Micro Bird customer service can be reached at 1-819-477-2012.
What is the safety risk in recall 20V610?
The safety risk is fire from a short circuit. The recall involves the propane conversion controller grounding wire after the main battery cut-off switch is deactivated. The propane module can fail, prevent the engine from starting, or create a short circuit.
What if I bought the Micro Bird bus used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your 2019 Micro Bird Mb Ii School Bus or Mb Ii Transit Bus is included, then call a Micro Bird dealer with recall number 20V610.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V610000 |
|---|---|
| Micro Bird customer service | 1-819-477-2012 |
| NHTSA recall # | 20V610 |
| NHTSA recall # (full) | 20V610000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →