No complaints are listed for the 2021 MCI J4500. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as MCI J4500.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
5 recalls.
Date: 2025-12-10. Systems: STRUCTURE, VISIBILITY.
Defect: 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, (excerpt)
Consequence: The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash. (excerpt)
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. (excerpt)
Do not drive: No. Park outside: No.
Date: 2023-04-05. Systems: EQUIPMENT.
Defect: Motor Coach Industries (MCI) is recalling certain 2019-2021 D45CRTLE, J3500, and J4500 coaches, equipped with a rear-mounted bike rack. The vehicle's rear lighting may be obstructed when bikes are installed on the bike rack. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: Obstructed rear lighting may reduce the visibility of the vehicle to other drivers, increasing the risk of a crash.
Remedy: MCI will provide instructions and a kit to add lighting to the rear-mounted bike rack, free of charge. Owner notification letters were mailed August 31, 2023. Owners may contact MCI customer service at 1-800-241-2947.
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.
Date: 2021-09-24. Systems: ELECTRICAL SYSTEM.
Defect: 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.
Consequence: MDP circuit board failure can result in a fire or an unexpected vehicle shutdown, increasing the risk of a crash.
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 at 1-800-241-2947. MCI's number for this recall is R21-010.
Do not drive: No. Park outside: No.
Date: 2021-02-10. Systems: ELECTRICAL SYSTEM.
Defect: Motor Coach Industries (MCI) is recalling certain 2018-2021 J4500 and 2018-2020 D45CRTLE vehicles. The power cables may have been improperly installed and routed in the vehicle battery compartment, which may result in chafing.
Consequence: The power cables may chafe, increasing the risk of a fire.
Remedy: MCI will notify owners, and dealers will inspect and if necessary, correct the clearance for the power cables in the battery compartment, free of charge. The recall began March 12, 2021. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is R21-003.
Do not drive: No. Park outside: No.
Manufacturer communications
18 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 7 |
|---|
| ENGINE | 3 |
|---|
| ENGINE AND ENGINE COOLING | 3 |
|---|
| EQUIPMENT | 3 |
|---|
| FUEL/PROPULSION SYSTEM | 2 |
|---|
| STRUCTURE | 2 |
|---|
| FUEL SYSTEM, DIESEL | 1 |
|---|
| SEATS | 1 |
|---|
11036566
Date: 2026-08-28. Type: Service Bulletin/Repair Instructions. Systems: FUEL/PROPULSION SYSTEM.
ITS to replace the neck fill assembly with a new design which resolves a possible splashback issue at higher fuel flow rates, without the need for fuel tank removal.
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.
11030367
Date: 2026-03-20. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, FUEL/PROPULSION SYSTEM.
Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 22inch DEF tank
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.
11023870
Date: 2025-10-01. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Instructions to download BCC program (T35-1581) V4.06. This program will allow the Eco-Temp system to properly log A17 code for low suction pressure.
11019689
Date: 2025-06-10. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
The mini fuses in the battery compartment for the condenser may not be enough for certain load conditions.
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.
10240348
Date: 2023-07-18. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, STRUCTURE.
Instructions to improve sealing in the front junction box.