No complaints are listed for the 2021 MCI D4500. NHTSA's API and bulk file list none in this build.
Data build 2026-10-08.
NHTSA lists this vehicle as MCI D4500.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
2 recalls.
Date: 2024-02-07. Systems: EQUIPMENT ADAPTIVE/MOBILITY.
Defect: Motor Coach Industries (MCI) is recalling certain 2014-2018 D4000, 2013-2019 D4005, 2013-2023 D4500, 2013-2020 D4505, and 2021-2024 D45CRT coaches equipped with a Ricon wheelchair lift. The red beacon lighting on the Threshold Warning System (TWS) may not be bright enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 403, "Platform (excerpt)
Consequence: Beacons that do not provide proper illumination may be less visible to wheelchair lift users, increasing the risk of injury. (excerpt)
Remedy: MCI will work with Ricon to replace the TWS kits, free of charge. Owner notification letters were mailed March 21, 2024. Owners may contact MCI customer service at 1-800-241-2947. (excerpt)
Do not drive: No. Park outside: No.
Date: 2021-12-15. Systems: FUEL SYSTEM, DIESEL.
Defect: 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.
Consequence: A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
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.
Do not drive: No. Park outside: No.
Manufacturer communications
11 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 4 |
|---|
| ENGINE | 2 |
|---|
| ENGINE AND ENGINE COOLING | 1 |
|---|
| EQUIPMENT | 1 |
|---|
| FUEL SYSTEM, DIESEL | 1 |
|---|
| SEATS | 1 |
|---|
| SERVICE BRAKES | 1 |
|---|
| SERVICE BRAKES, HYDRAULIC | 1 |
|---|
11036144
Date: 2026-08-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, SERVICE BRAKES.
This bulletin is to provide instructions for clearing DTC 1067 FMI 7 (Pressure Sensor Not Calibrated) and FMI 11 (Primary and Secondary Circuit Pressure Sensor (PS1/PS2) Plausibility Error - BS Pressure), when required to prevent the loss of Adaptive Cruise Control functionality and the illuminatio
11034101
Date: 2026-06-11. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.
This bulletin introduces an optional product improvement to the A/C compressor drive system for coaches equipped with a Cummins X12. The improved pulley system is available for customers who wish to reduce noise and vibration characteristics and may be installed at the customera s discretion.
11032280
Date: 2026-05-06. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
This TSIB provides information to provide a software update. Some coaches using MCC HVAC Eco-Tempo ECU # 07-10-009 software T35-1581 / V1.04 may be experiencing random fault codes due to MCC software errors.
11029031
Date: 2026-02-09. Type: Service Bulletin/Repair Instructions. Systems: STEERING, SUSPENSION.
This TSIB is to inform customers the recommended steering axle cleaning/greasing instructions to prevent damage on axle components due to displacement of grease from the bearings, lubrication reduction and accelerate wear for coaches with independent front suspension.
11011092
Date: 2024-11-05. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, UNKNOWN OR OTHER.
Information to owners showing the proper procedure for checking the oil level in a BITZER HVAC compressor.
10246090
Date: 2023-11-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Instruction to Service to replace the farebox baseplate to provide additional clearance.
10210903
Date: 2022-04-01. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING, FUEL SYSTEM, DIESEL.
This Technical Service Information Bulletin is a supplemental reminder to all MCI owners/operators of vehicles which are affected by the Cummins Equipment Recall 21E-099 and MCI Vehicle recall 21V-971.
10210908
Date: 2022-04-01. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
This Technical Instruction describes how to upgrade the Delco alternator indicator lamp ring terminal.
10206198
Date: 2021-12-14. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES, HYDRAULIC.
This Technical Service Information Bulletin (TSIB) describes an update from Meritor for the bolt torque application requirements on hub-to-rotor bolts for the front, drive and tag axles, on specific coaches equipped with Meritor EX225 disc brakes, on either Conventional, PreSet or Unitized Wheel-End
10203121
Date: 2021-10-06. Type: Service Bulletin/Repair Instructions. Systems: SEATS.
Technical Service Information Bulletin describing an update to the Preventaive Maintenance requirements for specifically equipped motor coaches with Kiel Avane model passenger seats.