MCI D4505 recalls

• Visual System#2026007January 15, 2026

  2,161 units affected

  Issue: On certain buses, the wrong glass may have been installed on the lower front entry door panel. As a result, the glass may not meet certain requirements of Canadian regulations. Safety Risk: An incorrect window glass could reduce visibility and increase the risk of a crash. Corrective Action: Motor Coach Industries (MCI) will notify owners by mail and provide you with instructions for how to replace the lower glass panel. Alternatively, you may schedule an appointment to have the lower glass panel replaced at an authorized MCI service center.

• Electrical#2021595September 24, 2021

  202 units affected

  Issue: On certain buses, a circuit board for the main distribution panel (MDP) located in the battery compartment may fail. If this happens, the circuit board could overheat and cause a sudden vehicle shutdown. Safety Risk: A circuit board that overheats could create the risk of a fire. A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Motor Coach Industries (MCI) will notify owners by mail instruct you to take your bus to an authorized repair facility to replace the main distribution panel (MDP) with a new part that has a main disconnect and circuit breaker assembly. To reduce the safety risk, MCI recommends that you should inspect the condition of the MDP circuit board every 9600 km (6000 miles) until this recall is completed.

• Fuel System#2021297May 18, 2021

  116 units affected

  Issue: On certain buses, the fuel rail assembly could develop a leak. Note: This recall only affects buses equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Motor Coach Industries (MCI) will notify owners by mail and instruct you to take your bus to a Cummins authorized service center to inspect the fuel rail. If damage is found, the fuel rail and fuel lines will be replaced. If no damage is found, the fuel rail will be reassembled with new crush washers using a special tool.

• Electrical#2020276June 17, 2020

  111 units affected

  Issue: On certain buses, a build-up of corrosion on the alternator connection could cause it to malfunction. If this happens, the alternator voltage output may increase. As a result, the control module may switch off the engine and cause a vehicle shutdown. Safety Risk: A sudden loss of engine power and vehicle shutdown could increase the risk of a crash. Corrective Actions: Motor Coach Industries (MCI) will notify owners by mail and instruct you to take your bus to an authorized repair facility to update the software in the Vehicle Multiplexing Module (VMM). MCI also recommends periodically inspecting, cleaning and re-applying corrosion inhibitor to the alternator.

• Engine#2018256May 14, 2018

  138 units affected

  On certain motor coaches, the exhaust bellows pipe may fail prematurely and cause a leak. An exhaust leak during a regeneration event could allow the leakage of hot gases and could increase the risk of fire, causing property damage and/or personal injury. Correction: Dealers will install a new exhaust pipe assembly.

• Engine#2017280May 25, 2017

  35 units affected

  On certain vehicles, the bellows pipe (a component of the exhaust system) may have been installed incorrectly and could fail. As a result, combustion from a Diesel Particulate Filter regeneration event could exit the failed bellows pipe instead of being completely contained within the exhaust system. If this occurs, the hot combustion gases could cause a fire which may result in property damage and/or personal injury. Correction: Authorized MCI service facilities will inspect and, if necessary, replace the bellows pipe. Note: This is an expansion of recall 2013-121.

• Electrical#2014236June 19, 2014

  85 units affected

  Certain coaches previously repaired as part of recall 2012173 may require additional modifications. The power draw from the LED interior lights may exceed the design limits of the fuse block terminal and power splice connector installed as part of the previous recall. As a result, these components could overheat, potentially resulting in a vehicle fire causing property damage and/or personal injury. Correction: MCI authorized facilities will install a revised fuse holder for the LED interior lights.

• Engine#2013121April 15, 2013

  18 units affected

  On certain vehicles, the bellows pipe (a component of the exhaust system) may have been installed incorrectly and could fail. As a result, combustion from a Diesel Particulate Filter regeneration event could exit the failed bellows pipe instead of being completely contained within the exhaust system. If this occurs, the hot combustion gases could cause a fire which may result in property damage and/or personal injury. Correction: Authorized MCI service facilities will inspect and, if necessary, replace the bellows pipe.

• Electrical#2012173May 30, 2012

  85 units affected

  On certain coaches, the power draw from the LED interior lights may exceed the design limits of the electrical circuit. This could allow certain components to overheat, which could result in a vehicle fire causing property damage and/or personal injury. Correction: MCI authorized facilities will modify the electrical circuit for the LED interior lights.

• Other#2012125April 10, 2012

  17 units affected

  On certain coaches equipped with a sedan style entrance door, thirty minutes after the park brake is set and the ignition is turned OFF, the entrance door will close without warning. This could result in personal injury if someone is in the doorway. Correction: Authorized MCI service facilities will reprogram the Actia multiplex controller.

• Other#2011377October 21, 2011

  245 units affected

  On certain vehicles, specific operating conditions (such as tight, successive, highly banked curves in opposite directions), could trigger unintended Electronic Stability Control (ESC) system intervention. As a result, the ESC may unnecessarily apply one of the front brakes in order to correct the perceived oversteer condition. This may cause the vehicle to deviate from the intended path, thereby increasing the risk of a crash causing property damage and/or personal injury. Correction: Dealers will replace the ESC module.

• Seats And Restraints#2010303September 9, 2010

  8 units affected

  On certain buses, the driver's seat shock damper may break allowing the driver's seat to unexpectedly drop to the floor without warning. In the event this situation should occur while the bus is in operation, the driver may lose control of the vehicle, possibly resulting in a crash causing property damage or personal injury to occupants of passengers or pedestrians. Correction: Dealers will replace the seat shock if necessary.

• Wheels#2010153May 11, 2010

  22 units affected

  On certain coaches, the front and/or tag axle assemblies may have been installed with improper torque applied to the hub/rotor/wheel adapter bolts. Reduced bolt torque could lead to vibration loosening of the bolt, and could result in a wheel off condition. This could result in a crash causing property damage, personal injury or death. Correction: Dealers will verify the torque of the affected hub/rotor/wheel adapter plate bolts and replace the bolts as necessary.

• Other#2010082March 22, 2010

  92 units affected

  On certain vehicles equipped with a Ricon F9 series cassette wheelchair lift, an improperly manufactured switch in the wheelchair lift restraint buckle may allow operation of the lift with the safety belt not fully latched. If the belt is not properly fastened, a wheelchair may not be adequately protected against unwanted movement, resulting a fall risk, potentially causing serious injury or death. Correction: The manufacturer will provide instructional information and warning decals.

Canadian data updated August 24, 2026