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2021 MCI J4500

5 recalls — 0 complaints — 14 TSBs

25V853000 Dec 10, 2025
STRUCTURE:BODY:DOOR
Defect Description
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. A... Read more
Consequence
The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
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.
15,454 vehicles affected
Manufacturer: Motor Coach Industries, Inc
23V240000 Apr 5, 2023
EQUIPMENT:MECHANICAL:CARRIER/RACK
Defect Description
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 M... Read more
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.
140 vehicles affected
Manufacturer: Motor Coach Industries
21V971000 Dec 15, 2021
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Defect Description
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, fiv... Read more
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 ... Read more
1,125 vehicles affected
Manufacturer: Motor Coach Industries
21V748000 Sep 24, 2021
ELECTRICAL SYSTEM
Defect Description
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... Read more
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.
2,455 vehicles affected
Manufacturer: Motor Coach Industries
21V063000 Feb 10, 2021
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
Defect Description
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.
1,229 vehicles affected
Manufacturer: Motor Coach Industries

No complaints found for this vehicle.

Technical Service Bulletins — 2021 MCI J4500

14 manufacturer communications from 9 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

ComponentBulletins
060000 ENGINE AND ENGINE COOLING3
110000 ELECTRICAL SYSTEM3
350000 EQUIPMENT2
160000 STRUCTURE2
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER1
220000 SEATS1
080000 FUEL SYSTEM, DIESEL1
980000 UNKNOWN OR OTHER1
TSIB 22-04 Jul 18, 2023
110000 ELECTRICAL SYSTEM
Instructions to improve sealing in the front junction box.
TSIB 22-04 Jul 18, 2023
160000 STRUCTURE
Instructions to improve sealing in the front junction box.
TSIB 22-12 Sep 7, 2022
110000 ELECTRICAL SYSTEM
MCI has released Technical Service Information Bulletin (TSIB) 22-12 to address concerns with water ingress in remote switch box. The TSIB provides guidance on how to rework the box to inhibit water intrusion and connector corrosion
TSIB 22-04 May 3, 2022
160000 STRUCTURE
Technical Service Information Bulletin describing the retrofit for the front junction box cover on specifically equipped buses.
TSIB 22-02 Apr 1, 2022
060000 ENGINE AND ENGINE COOLING
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.
TSIB 22-02 Apr 1, 2022
080000 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.
TSIB 21-10 Jan 5, 2022
110000 ELECTRICAL SYSTEM
This Technical Service Information Bulletin describes interim inspection procedures required every 6000 miles on specific motor coaches due to the global parts shortage and subsequent delay in available parts to conduct the corrective actio
TSIB 21-10 Jan 5, 2022
350000 EQUIPMENT
This Technical Service Information Bulletin describes interim inspection procedures required every 6000 miles on specific motor coaches due to the global parts shortage and subsequent delay in available parts to conduct the corrective actio
TSIB 21-08 Oct 6, 2021
220000 SEATS
Technical Service Information Bulletin describing an update to the Preventaive Maintenance requirements for specifically equipped motor coaches with Kiel Avane model passenger seats.
TSIB 21-05 Jun 2, 2021
060000 ENGINE AND ENGINE COOLING
This Technical Sevice Information Bulletion is to advise of a part number supersession of the coolant hump hose, MCI PN 6L-8-353, to MCI PN 06-08-2262.
SB 3146 Oct 22, 2020
060000 ENGINE AND ENGINE COOLING
This service bulletin outlines the steps to add the secondary air filter. The secondary filter can only be used with primary air filter, MCI P/N: 09-03-1858.
SB 3146 Oct 22, 2020
350000 EQUIPMENT
This service bulletin outlines the steps to add the secondary air filter. The secondary filter can only be used with primary air filter, MCI P/N: 09-03-1858.
SB 485 Sep 17, 2020
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
This Service Bulletin informs affected owners that the A/C compressor on certain J4500 coaches are making excessive noise and vibration which may result in vibration transferred to the coach frame, possibly resulting in noise and passenger
No comms 2024-04 Apr 5, 2024
980000 UNKNOWN OR OTHER
There are no Manufacturer Communications in accordance with 49 CFR 579.5 to report for April 2024 for Motor Coach Industries.

NHTSA Safety Investigations — MCI J4500

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

PE20001 Opened: Mar 13, 2020 — Closed: Sep 21, 2020
PE — Closed — Model Year: 2017
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, iden... Read more

MCI J4500 — All Years Overview

Complete safety history for the MCI J4500 across all model years (2001–2026).

192 Total Recalls
4 Total Complaints
1 Investigations
1 Reported Crashes
0 Reported Fires
0 Reported Deaths

MCI J4500 — Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year Recalls Complaints
2026 1 0 View
2025 1 0 View
2021 (current) 5 0
2020 9 0 View
2019 12 0 View
2018 13 0 View
2017 8 0 View
2016 7 0 View
2015 10 0 View
2014 10 0 View
2013 7 0 View
2012 7 1 View
2011 13 0 View
2010 11 0 View
2009 11 0 View
2008 10 0 View
2007 8 1 View
2006 8 0 View
2005 9 0 View
2004 8 0 View
2003 9 2 View
2002 7 0 View
2001 8 0 View

Other MCI Models

Model Recalls Complaints
102A3 0 0 View
102B3 0 0 View
102C3 0 0 View
102D 0 0 View
102D3 0 0 View
102D3ISTV 0 0 View
102DL 0 0 View
102DL3 0 0 View