If your VIN is in recall 25V840, Micro Bird dealers will secure loose air-conditioning power cables on 2021-2026 school buses for free.
Micro Bird is recalling 2,428 2021-2026 G5 School Bus, T-Series School Bus, and Mb Ii School Bus vehicles because the power cable feeding the air conditioning control board can have a loose connection. The concern is an overheated or melted control board, which increases fire risk; Micro Bird dealers will complete the recall repair free of charge.
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What's wrong?
On 2021-2026 Micro Bird G5 School Bus, T-Series School Bus, and Mb Ii School Bus models with a ceiling-mounted Spheros air conditioning system, the A/C control board manages electrical power for the air conditioning unit. A power cable feeds electricity to a power stud on that board. That connection needs to stay tight so current moves cleanly through the board.
On affected buses, the power cable connection to the power stud is loose. A loose electrical connection creates resistance at the contact point. As current passes through that poor connection, heat builds at the board instead of moving through the circuit as designed. Micro Bird traced localized heat damage and fire incidents to that loose cable-to-stud connection.
There is no warning sign before failure. The filing does not identify a dashboard alert, A/C behavior, or driver-visible cue before heat damage starts at the control board.
Who's affected?
Spans G5, T-Series, and Mb Ii school buses across the 2021-2026 model years, all tied to A/C system wiring.
| 2021 Micro Bird G5 School Bus | wiring |
|---|---|
| 2025 Micro Bird G5 School Bus | wiring |
| 2022 Micro Bird G5 School Bus | wiring |
| 2023 Micro Bird G5 School Bus | wiring |
| 2024 Micro Bird G5 School Bus | wiring |
| 2022 Micro Bird T-Series School Bus | wiring |
| 2023 Micro Bird T-Series School Bus | wiring |
| 2024 Micro Bird T-Series School Bus | wiring |
| 2025 Micro Bird T-Series School Bus | wiring |
| 2025 Micro Bird Mb Ii School Bus | wiring |
| 2024 Micro Bird Mb Ii School Bus | wiring |
| 2023 Micro Bird Mb Ii School Bus | wiring |
| 2022 Micro Bird Mb Ii School Bus | wiring |
| 2026 Micro Bird G5 School Bus | wiring |
| Units affected | 2,428 |
| 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 loose power cable connection can make the control board overheat and melt, increasing the risk of a fire. If your VIN is included, schedule the repair soon and ask the dealer whether the bus should stay out of service until inspected. Repair is free at any franchised Micro Bird dealer.
What should I do?
- Check your VIN to confirm your 2021-2026 Micro Bird G5 School Bus, T-Series School Bus, or Mb Ii School Bus is included in this recall.
- Contact a franchised Micro Bird dealer to schedule the free power-cable and power-stud service that secures the loose air-conditioning control-board connection.
- Bring the owner letter if you have it, and reference recall number 25V840 when you call.
- Call Micro Bird customer service at 819-477-2012 with questions about scheduling or the free repair.
What happens at the repair
At the dealer, a Micro Bird technician secures the power cable and power stud on the air conditioning control board when the connection needs correction. Parts and labor are covered under the recall. If a dealer cannot complete the repair, Micro Bird invites owners to submit a claim through the recall portal listed in the owner notice. The reimbursement period has no time limit, and Micro Bird covers labor costs plus needed parts not supplied by Micro Bird.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 5, 2025 | NHTSA published the recall |
|---|---|
| December 29, 2025 | Dealer notification began |
| December 31, 2025 | Dealer notification ended |
| February 2, 2026 | Owner notification mailed |
Frequently asked questions
What is recall 25V840?
Recall 25V840 covers 2,428 Micro Bird school buses with an air-conditioning control-board power cable that has a loose connection. That connection can overheat and melt the control board, increasing fire risk. Micro Bird dealers will secure the power cable and power stud for free.
What should I do if my 2021-2026 Micro Bird G5 School Bus, T-Series School Bus, or Mb Ii School Bus is on this recall?
Check your VIN to confirm your specific bus is included in recall 25V840. If it is, contact a Micro Bird dealer to schedule the power-cable and power-stud repair. Reference recall number 25V840 and Micro Bird recall number 25-118-SUC when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Micro Bird says dealers will secure the power cable and power stud free of charge. Parts and labor are covered for included buses.
What is the safety risk?
The safety risk is fire. The loose power cable connection can overheat and melt the air-conditioning control board, increasing fire risk. If your VIN is included, arrange the free dealer repair and ask the service desk whether the bus needs any use limits before the appointment.
When were owners notified about recall 25V840?
Micro Bird mailed owner notification letters on February 2, 2026. If you bought the bus used or manage a fleet with changed contact information, check your VIN instead of relying on a mailed letter. Micro Bird Customer Service is available at 819-477-2012.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V840000 |
|---|---|
| Micro Bird customer service | 819-477-2012 |
| NHTSA recall # | 25V840 |
| NHTSA recall # (full) | 25V840000 |
Source documents
-
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 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →