Micro Bird G5 School Bus, Micro Bird Mb Ii School Bus, model years 2023 to 2026. Filed by Corp. Micro Bird, Inc. and reported to NHTSA on 6 May 2026. 902 vehicles potentially affected.
What the notice says Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2023-2026 G5 and 2024 MB II school buses built on a GM chassis and equipped with a second air conditioning compressor kit. The drive belt pulley may contact and damage the the oil lines.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Micro Bird's own number for this recall: 26-121-OUS. That is the number on the owner letter and on the dealer paperwork. 26V287 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 26V287 cover?
- Micro Bird G5 School Bus, Micro Bird MB Ii School Bus, model years 2023-2026.
- What is wrong with them?
- Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2023-2026 G5 and 2024 MB II school buses built on a GM chassis and equipped with a second air conditioning compressor kit. The drive belt pulley may contact and damage the the oil lines.
- What can happen if it is not put right?
- A damaged oil like may leak, increasing the risk of a fire in the presence of an ignition source.
- Is there a fix yet?
- Yes, and it is free. Dealers will secure the oil lines, free of charge. Owner notification letters are expected to be mailed June 29, 2026. Owners can contact Micro Bird Customer Service at 819-477-2012. Micro Bird's number for this recall is 26-121-OUS.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Micro Bird calls this recall 26-121-OUS, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A damaged oil like may leak, increasing the risk of a fire in the presence of an ignition source.”
affected
in the notice
caught
| Campaign | 26V287 |
|---|---|
| Filed by | Corp. Micro Bird, Inc. |
| System at fault | Engine And Engine Cooling:Engine:Oil/Lubrication:Pipes, Hoses, And Fittings |
| Reported to NHTSA | 6 May 2026 |
| Model years | 2023-2026 |
| Vehicles named | MICRO BIRD G5 SCHOOL BUS, MICRO BIRD MB II SCHOOL BUS |
What the notice says today
The defect
Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2023-2026 G5 and 2024 MB II school buses built on a GM chassis and equipped with a second air conditioning compressor kit. The drive belt pulley may contact and damage the the oil lines.
The consequence
A damaged oil like may leak, increasing the risk of a fire in the presence of an ignition source.
The remedy
Dealers will secure the oil lines, free of charge. Owner notification letters are expected to be mailed June 29, 2026. Owners can contact Micro Bird Customer Service at 819-477-2012. Micro Bird's number for this recall is 26-121-OUS.
What it said before
Nothing has changed while we have been watching. We last read the wording of this campaign on 17 September 2026, and it matched the copy we already held.
That copy hashes to 14c262d8f34bb32b74465ad260883413…, so if it is ever edited the change is provable rather than a matter of memory.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
- Micro Bird G5 School Bus recalls: 51 US campaigns
- Micro Bird MB Ii School Bus recalls: 30 US campaigns
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 26V287, wording as read on 17 September 2026. https://carsmultiverse.com/recall/26v287/
The copy quoted above hashes to 14c262d8f34bb32b74465ad260883413…. If the notice is reworded later, that fingerprint will not match, which is how a reader checks that the quotation was of the version we say it was.
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Micro Bird notices we hold
- 26V286: 2023-2025 G5 transit buses built on a GM chassis and equipped with a second air conditioning compressor kit
- 26V149: 2003-2026 MB II, 2006-2026 G5, and 2015-2026 T-Series school buses
- 26V148: 2026 G5 transit buses
- 26V147: 2002-2015 MB II, 2008-2026 G5, and 2015-2026 T-Series transit buses
- 25V902: 2018-2019, 2024-2026 G5E transit buses
- 25V901: 2019, 2021-2026 G5E school buses
- 25V843: 2026 G5 transit buses
- 25V840: 2022-2025 MB II, T-Series, and 2021-2026 G5 school buses
All 81 Micro Bird campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 26V287 on 23 August 2026, they were:
- Defect summary
040f0031 - Consequence
137326b9 - Remedy
4d6eb2d3
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 26V287 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Micro Bird MB Ii School Bus, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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