Model year record

2021 MCI D4520

2 recall campaigns on file for this model year. No owner complaints in our copy of the federal file.

Recalls

Recall campaignNHTSA 26V645000

Electrical system: instrument cluster/panel

Component
Electrical system: instrument cluster/panel
Manufacturer
Motor Coach Industries, Inc
Vehicles affected
683
Reported to NHTSA
2026-10-05

Defect description

Motor Coach Industries (MCI) is recalling certain 2018-2026 buses. Please see the complete list of models above. The instrument panel indicator light may not illuminate when the hazard warning lights are on and the master run switch is in the 'Off' position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Safety risk

Without the illuminated reminder, the driver may fail to turn off the exterior lights when no longer needed. Hazard warning lights that remain activated unintentionally can confuse other drivers, increasing the risk of a crash.

Manufacturer remedy

MCI will update the software, free of charge. Owner notification letters are expected to be mailed November 24, 2026. Owners may contact MCI customer service at 1-800-241-2947.

Recall campaignNHTSA 21V971000

Fuel system, diesel: fuel injection system: fuel rail

Component
Fuel system, diesel: fuel injection system: fuel rail
Manufacturer
Motor Coach Industries
Vehicles affected
1,125
Reported to NHTSA
2021-12-15
Owners notified
2022-03-11

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 risk

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.

Owner complaints

A complaint is one person's report to a federal agency. It is not a finding.

No complaints in our copy of the federal file for this model year. The daily feed covers recent filings; older history appears only after a full-history rebuild.

Other MCI D4520 model years

All MCI D4520 recalls by year

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.