NHTSA vehicle safety data
2021 MCI D4505 Recalls, Ratings & Complaints
The 2021 MCI D4505 has 2 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized MCI dealer.
NHTSA recall and complaint data for the 2021 MCI D4505. Recall data is refreshed daily from NHTSA.
STRUCTURE:BODY:DOOR
NHTSA #25V853000Reported December 10, 2025 · Motor Coach Industries, Inc
Potentially affected: 15,454 vehicles
Defect description
Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E4500, D4000, 102D3ISTV, D4500, J4500, D4000ISTV, D4005, D4505, and J3500 transit buses. Please refer to MCI's recall report for specific model year information. The front door lower curb view glazing material is incorrect. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 205, "Glazing Materials."
Safety consequence
The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
Manufacturer remedy
MCI will replace the glass, free of charge. Owner notification letters were mailed February 4, 2026. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is 22-005.
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
NHTSA #21V971000Reported December 15, 2021 · Motor Coach Industries
Potentially affected: 1,125 vehicles
Defect description
Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Safety consequence
A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Manufacturer remedy
On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free of charge. Owner notification letters were mailed March 11, 2022. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is R21-028.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Other MCI D4505 model years
Check your 2021 MCI D4505 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your MCI D4505 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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