RecallMyCar

Mci D4520 Recalls & Complaints by Model Year

NHTSA lists 3 safety recalls and 0 owner complaints across 3 model years of the Mci D4520 (2020–2025).

3
safety recalls, all years
0
owner complaints, all years
2020
year with most recalls

Pick your Mci D4520 model year

Model yearRecallsComplaints
2025 Mci D452010
2021 Mci D452010
2020 Mci D452010

All Mci D4520 recalls (3)

Every NHTSA safety campaign that lists a Mci D4520, most recent first, with the model years each one covers.

  1. Labels (equipment)

    NHTSA 25V457000 Reported 321 vehicles potentially affected Motor Coach Industries

    Motor Coach Industries (MCI) is recalling certain 2025 D4520, D45CRTLE, D45CRT, J3500, and 2025-2026 J4500 buses. The emergency exit label may be placed in the incorrect location. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 217, "Bus Emergency Exits and Window Retention and Release."

    Remedy: MCI will install or mail labels as necessary, free of charge. Owner notification letters were mailed August 6, 2025. Owners may contact MCI customer service at 1-800-241-2947.

    Model years: 2025

  2. Fuel rail (fuel system)

    NHTSA 21V971000 Reported 1,125 vehicles potentially affected Motor Coach Industries

    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…

    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…

    Model years: 2021

  3. Electrical system

    NHTSA 21V748000 Reported 2,455 vehicles potentially affected Motor Coach Industries

    Motor Coach Industries (MCI) is recalling certain 2018 D4000, 2018-2020 D4005, D4000ISTV, 2017-2020 D4500, D4505, 2018-2021 J3500, 2017-2021 J4500, 2020 D4520, and 2018-2021 D45CRTLE motorcoaches. The Main Distribution Panel (MDP) located within the battery compartment contains a circuit board that may fail.

    Remedy: MCI Service Centers will remove the MDP and install a new main disconnect and circuit breaker panel, free of charge. Owner notification letters were mailed November 12, 2021. Owners may contact MCI's customer service…

    Model years: 2020

Other Mci models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.