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Model year

2023 MCI J4500

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (0)Complaints (0)Investigations (0)Bulletins (20)
Recall campaigns covering this model year0No recall campaign lists this model year
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2023 MCI J4500 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

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Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

No recall campaign lists the 2023 MCI J4500

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2023 MCI J4500

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    20 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

    • ITS61263 Aug 28, 2026 · Service Bulletin/Repair Instructions
      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.
    • TSIB 26-07 Aug 11, 2026 · Service Bulletin/Repair Instructions
      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 Cruis…
    • TSIB 26-05 Jun 11, 2026 · Service Bulletin/Repair Instructions
      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 inst…
    • ITS61752 May 28, 2026 · Service Bulletin/Repair Instructions
      Instructions for updating software to allow automatic snow chains to activate (if equipped).
    • TSIB 26-01 May 6, 2026 · Service Bulletin/Repair Instructions
      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.
    • TSIB 26-04 Feb 9, 2026 · Service Bulletin/Repair Instructions
      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 …
    • ITS61456 Feb 13, 2026 · Service Bulletin/Repair Instructions
      Instructions to realign windshield support plate to prevent vertical windshield cracks.
    • TSIB 25-09 Jan 7, 2026 · Service Bulletin/Repair Instructions
      Instructions to verify security of interior REI brand monitors on affected coaches.
    • ITS61475 Oct 1, 2025 · Service Bulletin/Repair Instructions
      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.
    • ITS61345 Jun 10, 2025 · Service Bulletin/Repair Instructions
      The mini fuses in the battery compartment for the condenser may not be enough for certain load conditions.
    • ITS61262 Mar 13, 2025 · Service Bulletin/Repair Instructions
      Instructions to replace the fuel neck fill assembly with a new design which resolves the splashback issue being experienced with high-flow fueling stations. (Similar to previous ITS60956 but these instructions do not require fuel tank removal.)
    • ITS61235 Jan 10, 2025 · Service Bulletin/Repair Instructions
      This bulletin outlines steps to replace the existing harness with mini fuses to a more robust design and heavier duty fuses.
    • TSIB 24-03 Nov 5, 2024 · Service Bulletin/Repair Instructions
      Information to owners showing the proper procedure for checking the oil level in a BITZER HVAC compressor.
    • ITS60877 Dec 8, 2023 · Service Bulletin/Repair Instructions
      Instruction to Service ITS60877 provides instructions to relocate an impact sensor in baggage bay to reduce nuisance activations.
    • ITS-60825 Oct 3, 2023 · Service Bulletin/Repair Instructions
      Instruction to Service to install a spring on condenser door.
    • ITS60791 Sep 6, 2023 · Service Bulletin/Repair Instructions
      Instructions to Service ITS60791 for replacing the existing fuel level sensor with a shorter version for better fuel level reading.
    • TSIB 22-04 Jul 18, 2023 · Service Bulletin/Repair Instructions
      Instructions to improve sealing in the front junction box.
    • ITS60660 Mar 7, 2023 · Service Bulletin/Repair Instructions
      Instructions to replace fuel supply line clamps on auxiliary coolant heaters.
    • ITS60624 Feb 2, 2023 · Service Bulletin/Repair Instructions
      Instructions for improving fuel tank venting while fueling.
    • ITS-60597 Dec 22, 2022 · Service Bulletin/Repair Instructions
      ITS-60597 provides instructions on inspection, and correction as needed, of welds related to the cable bracket on the front access door.
    Source: NHTSA manufacturer communications files.
    About service bulletins