2021 Micro Bird Mb Ii School Bus Recalls

Safety recall campaigns filed with NHTSA that cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov

Recall campaigns

Newest Mar 13, 2026

Carrying an NHTSA advisory

Open investigations

1 investigation on file

Recall campaigns

8 campaigns cover this model year — what the defect is, what it could cause, and what the remedy is

26V149000

EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:

Mar 13, 2026

584 units potentially affected

The defect: Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2003-2026 MB II, 2006-2026 G5, and 2015-2026 T-Series school buses. An installation error may prevent the wheelchair tie-downs from locking, leaving the wheelchair improperly secured.

The risk: An unsecured wheelchair can move during transit or a crash, increasing the risk of injury.

The remedy: Dealers will inspect and secure the anchor screw cap as necessary, free of charge. Owner notification letters were mailed April 28, 2026. Owners can contact Micro Bird Customer Service at 819-477-2012. Micro Bird's number for this recall is 26-120-AUS.

Corp. Micro Bird, Inc.Manufacturer number 26-120-AUSView on NHTSA.gov

24V484000

STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR; STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT

Jun 27, 2024

22,582 units potentially affected

The defect: Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2008-2025 G5, 2008-2024 MBII, and 2015-2024 T-Series school buses. The rear emergency door exterior handle may unexpectedly break under applied force.

The risk: In the event of an emergency, a broken door handle can prevent or delay emergency responders from entering the bus, increasing the risk of injury.

The remedy: Dealers will replace the rear emergency door exterior handle, free of charge. Owner notification letters were mailed August 15, 2024. Owners may contact Micro Bird customer service at 1-819-477-2012. Micro Bird's number for this recall is 24-109-EUS.

Corp. Micro Bird, Inc.Manufacturer number 24-109-EUSView on NHTSA.gov

22V715000

ELECTRICAL SYSTEM

Sep 23, 2022

2,753 units potentially affected

The defect: Corp. Micro Bird, Inc. (Micro) is recalling certain 2012-2023 G5, 2012-2023 MBII and 2015-2022 T-Series school buses. The power cable that provides electricity to the air conditioning control board may have a loose connection to the power stud on the board.

The risk: A loose power cable connection may cause the control board to overheat and melt, increasing the risk of a fire.

The remedy: Dealers will redirect the power cable and secure the power cable connect as necessary, free of charge. Owner notification letters were mailed on March 2, 2023. Owners may contact Micro Bird customer service at 1-819-477-2012. Micro Bird's number for this recall is 22-096-VUS.

Corp. Micro Bird, Inc.Manufacturer number 22-096-VUSView on NHTSA.gov

22V540000

STRUCTURE:BODY

Jul 27, 2022

127 units potentially affected

The defect: Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2021-2022 G5, MBII, and T-Series school buses. The inside panels under the windows may have been insufficiently attached. As such, these vehicles fail to comply with the requirements of the Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength."

The risk: Insufficiently attached panels may separate during a crash, increasing the risk of an injury.

The remedy: Dealers will provide parts and instructions on how to correct the defect, free of charge. The manufacturer has not yet provided a schedule for recall notification. Owners may contact Micro Bird's customer service at 1-819-477-2012. Micro Bird's number for this recall is 22-094-PUS.

Corp. Micro Bird, Inc.Manufacturer number 22-094-PUSView on NHTSA.gov

22V287000

ELECTRICAL SYSTEM:WIRING

Apr 28, 2022

14,229 units potentially affected

The defect: 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.

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

The 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.

Corp. Micro Bird, Inc.Manufacturer number 22-092-HUSView on NHTSA.gov

22V286000

ELECTRICAL SYSTEM:WIRING

Apr 28, 2022

156 units potentially affected

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

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

Corp. Micro Bird, Inc.Manufacturer number 22-092-HUCView on NHTSA.gov

21V530000

STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT:LATCHING/RELEASE SYSTEM

Jul 13, 2021

17,204 units potentially affected

The defect: Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2003-2022 MBII, T-Series, and G5 school buses. The emergency release handle on the service door may bind, not allowing the door panels to open.

The risk: The service door may not open, preventing evacuation of the vehicle in case of emergency, and increasing the risk of injury.

The remedy: Dealers will provide instructions on how to correctly adjust the service door, free of charge. Owner notification letters were mailed on September 8, 2021. Owners may contact Micro Bird customer service at 1-819-477-2012. Micro Bird's number for this recall is 21-087-DUS.

Corp. Micro Bird, Inc.Manufacturer number 21-087-DUSView on NHTSA.gov

20V133000

STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT

Mar 6, 2020

17,693 units potentially affected

The defect: Corp. Micro Bird Inc. (Micro Bird) is recalling certain 2004-2021 T-Series, G5, and MBII school buses. The emergency door retaining device may fail to keep the door in an open position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 217, "Bus Emergency Exits and Window Retention and Release."

The risk: If the emergency door won't stay open during an evacuation it can increase the risk of injury.

The remedy: Micro Bird will notify owners, and dealers will install a kit to repair the emergency door retaining device, free of charge. The recall April 24, 2020. Owners may contact Micro Bird customer service at 1-819-477-2012. Micro Bird's number for this recall is 20-084-RUS.

Corp. Micro Bird Inc.Manufacturer number 20-084-RUSView on NHTSA.gov

Safety recall: A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
Safety investigation: NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
Manufacturer communication: Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect, and it is not a recall.

PE23016ClosedPreliminary Evaluation

6L90 Transmission Failure

Opened Sep 27, 2023

Closed Jan 10, 2025

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE) after receiving one Vehicle Owner Questionnaire (VOQ) complaint related to four school buses built on General Motors (GM) van chassis. The VOQ alleged transmission failure resulting in a loss of all forward gear. In ODI's pre-investigative discussions with GM, ODI learned that valve body separator plates had been machined out of tolerance during production periods between October 2016 to April 2017 and February 2021 to April 2021. This out of tolerance machining may create excessive wear to the valve body check balls, possibly resulting in an inability to engage drive or reverse. The potential loss of drivability only begins when shifting from a park or neutral transmission selection and does not occur during a functional drive cycle. The average failure mileage of vehicles which experienced this condition is within warranty and related claims or complaints did not include any accidents, injuries, or fatalities. After discussions with GM, Technical Service Bulletin (TSB) 23-NA-142 (NHTSA ID number 10243753) was released in September 2023. This technical service bulletin provides a procedure for technicians to replace the forward check ball and separator plate if found to be the cause of a customer's concern. During the course of the investigation, GM also released a Customer Satisfaction Program (CSP) N232428780 (NHTSA ID 10253316) in February 2024, to notify school bus and ambulance fleets of the concern and to proactively mitigate the risk in these essential-operation vehicles. Recently, ODI contacted multiple school bus fleets, verifying that there have not been any stranded buses mid-route from this condition. Additionally, ODI has not received any additional VOQ complaints since the opening of this investigation. Based on the available information, including GM's TSB and CSP, this PE is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI report cited in the Closing Resume ODI Report Identification Numbers document, go to NHTSA.gov.

POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY

Elsewhere on this vehicle

Data sources

NHTSA Office of Defects Investigation — recall campaigns and safety investigations

2021 Micro Bird Mb Ii School Bus Recalls

Recall campaigns

What a recall is

Safety investigations

Elsewhere on this vehicle

Data sources