Mci J4500 problems & complaints
What Mci J4500 owners have reported to NHTSA, the service bulletins the manufacturer sent dealers, and any federal defect investigations, by model year. See Mci J4500 safety recalls or check your VIN.
- Owner complaints
- 1
- Service bulletins (TSBs)
- 71+
- Crashes / fires reported
- 0 / 0
- Defect investigations
- 1
Complaints by model year
Complaints owners filed with NHTSA, by the model year of the vehicle. A high count can also mean a popular year, so compare it with how many were sold.
| Year | Complaints | Crashes | Fires | Injured | Deaths | TSBs |
|---|---|---|---|---|---|---|
| 2027 | 0 | 0 | 0 | 0 | 0 | 2 |
| 2026 | 0 | 0 | 0 | 0 | 0 | 18 |
| 2025 | 0 | 0 | 0 | 0 | 0 | 25 |
| 2024 | 0 | 0 | 0 | 0 | 0 | 21 |
| 2023 | 0 | 0 | 0 | 0 | 0 | 21 |
| 2022 | 0 | 0 | 0 | 0 | 0 | 14 |
| 2021 | 0 | 0 | 0 | 0 | 0 | 18 |
| 2020 | 0 | 0 | 0 | 0 | 0 | 47 |
| 2019 | 0 | 0 | 0 | 0 | 0 | 62 |
| 2018 | 0 | 0 | 0 | 0 | 0 | 71 |
| 2017 | 0 | 0 | 0 | 0 | 0 | 58 |
| 2016 | 0 | 0 | 0 | 0 | 0 | 56 |
| 2015 | 0 | 0 | 0 | 0 | 0 | 50 |
| 2014 | 0 | 0 | 0 | 0 | 0 | 66 |
| 2013 | 0 | 0 | 0 | 0 | 0 | 57 |
| 2012 | 1 | 0 | 0 | 0 | 0 | 57 |
| 2011 | 0 | 0 | 0 | 0 | 0 | 43 |
| 2010 | 0 | 0 | 0 | 0 | 0 | 27 |
Most reported problems
The vehicle systems named most often in Mci J4500 complaints (one complaint can name several).
Latest owner complaints
In the owners’ own words, as filed with NHTSA. Unverified reports; NHTSA removes personal details before publishing.
THIS PROBLEM EXISTS ON AT LEAST 4 OUT OF 10, MCI MOTOR-COACHES MANUFACTURED FROM 2006 TO 2013. THE PROBLEM HAS NOT BEEN REPORTED NOR INVESTIGATED BECAUSE IT REMAINS UN-DETECTED DURING ROUTINE MAINTENANCE, COMPUTER DIAGNOSTICS OR BY ANY COMPANY MECHANICS. THE ISSUE ONLY BECOMES APPARENT AFTER SEVERAL HOURS OF CONTINUOUS DRIVING A (MINIMUM OF 400 MILES ) MCI PASSENGER MOTOR-COACH. NO FACILITY OR MECHANIC WILL DRIVE THE VEHICLE FOR THE EXTENDED AMOUNT OF TIME TO DETECT THE PROBLEM. THERE IS ALSO NO EQUIPMENT/MONITOR AVAILABLE TO MONITOR OR EVALUATE THE AIR QUALITY IN THE DRIVER CABIN AREA. THE DRIVER AREA BEGINS TO SMELL OF ANTIFREEZE VAPORS/TOXIC FUMES THAT HAVE ESCAPED INTO THE D…
Technical service bulletins (TSBs)
Repair instructions and other communications the manufacturer sent dealers about known issues. A TSB is not a recall, and the repair is usually free only while the car is under warranty; ask your dealer for the bulletin number.
- ITS62015
Instructions to add RGB theme light program.
- ITS62007
Instructions to update the PLC program to add a brake light telltale on dash when brakes are activated
- ITS61592
Instructions for uploading the latest program to add theme lights
- ITS61573
Instructions to clean and treat rusted surface on specific tubes showing rust on bottom of the center chassis.
- ITS61263
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.
- ITS61822
Instructions to verify compression fitting P/N 19-10-1335 is installed correctly.
- TSIB 26-07
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 illumination of a warning indicator.
- ITS61807
Instructions for uploading the latest software to include RGB light features.
- TSIB 26-05
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 customerâs discretion.
- ITS61793
Instructions for adding an oil collection bottle on the HVAC compressor to measure oil seepage past the seal.
- ITS61752
Instructions for updating software to allow automatic snow chains to activate (if equipped).
- TSIB 26-01
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.
Federal defect investigations
NHTSA’s Office of Defects Investigation opens these when complaints point to a possible safety defect. Many end in a recall.
- Supply and return heater hose rupture
By letter dated August 31, 2020, Motor Coach Industries (MCI) notified the Office of Defects Investigation (ODI) of a safety defect that may exist in certain model year (MY) 2017-2020 J4500 vehicles. An ODI review of Early Warning Reporting (EWR) submissions by MCI, on MY 2017-2019 J4500 buses, identified ruptured heater hoses on multiple motor coaches leading to the vehicles becoming disabled. ODI communications with fleets found that a low coolant level light with an audible warning would prov
Source: NHTSA Office of Defects Investigation public data (complaints, manufacturer communications, investigations), model years 2010 and later. Had a safety problem? Report it to NHTSA.
Questions
What are the most common Mci J4500 problems?
In complaints filed with NHTSA for model years 2010–2027, owners most often name: engine and engine cooling. 1 complaints are on record.
Is a complaint or a TSB the same as a recall?
No. A complaint is an unverified report from an owner. A technical service bulletin (TSB) is the manufacturer telling dealers how to fix a known issue; it is not a safety recall and is usually covered only under warranty. A recall is a formal safety action, and its repair is free.
How do I report a problem with my Mci J4500?
File a vehicle safety complaint at NHTSA.gov. NHTSA reads every report, and patterns of complaints are what open defect investigations and, eventually, recalls.