The worst 2018 Micro Bird MB II Transit Bus problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 3
Electrical system: wiring
- What is wrong
- 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.
- Risk
- A damaged electrical harness may short circuit, increasing the risk of a fire.
- 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.
Recall number 22V287000 · Recall details
Structure: emergency: escape/egress/exit
- What is wrong
- 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."
- Risk
- If the emergency door won't stay open during an evacuation it can increase the risk of injury.
- 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.
Recall number 20V133000 · Recall details
Seat belts: front: anchorage
- What is wrong
- Corp. Micro Bird Inc. (Micro Bird) is recalling certain 2015-2018 Micro Bird G5, MB II, and T-Series transit buses. During manufacturing, the seat belt anchorage plate may not have been correctly attached to the wall, limiting the capacity of the shoulder belt to restrain a passenger in the event of a crash.
- Risk
- If the belt anchorage plate detaches from the wall, and cannot properly restrain a passenger it can increase the risk of injury.
- Remedy
- Micro Bird Corporation will provide inspection and field modification instructions and the material kit required to complete this recall repair, free of charge. Owner letters were mailed September 26, 2018. Owners may contact Micro Bird customer service at 1‑819‑477‑2012. Micro Bird's number for this recall is 18-075-CUC.
Recall number 18V517000 · Recall details
See all 3 recalls for the 2018 Micro Bird MB II Transit Bus
Defect investigations
6L90 Transmission Failure
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 (the federal safety agency 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 (the federal safety agency 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 the federal safety agency 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
PE23016
Compare the 2018 Micro Bird MB II Transit Bus
Other model years
Questions about the 2018 Micro Bird MB II Transit Bus
Is the 2018 Micro Bird MB II Transit Bus reliable?
Owners have filed 0 complaints about the 2018 Micro Bird MB II Transit Bus.
What is the most common problem with the 2018 Micro Bird MB II Transit Bus?
There are not enough complaints to tell.
How many recalls does the 2018 Micro Bird MB II Transit Bus have?
3 recalls, covering electrical system, structure and seat belts.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2018 Micro Bird MB II Transit Bus?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history