2017 Mci J4500 Recall

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.

An incorrect window glass could reduce visibility and increase the risk of a crash.

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.

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.

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.

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.

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.

A fuel leak can create the risk of a fire.

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.

On certain buses, the engine coolant hoses may be defective and could fail. As a result, engine coolant could leak. If this happens, a low coolant warning may appear and the engine can shut down. It could also cause coolant to spill onto the road.

A sudden loss of engine power could increase the risk of a crash. Additionally, an engine coolant leak could create a hazard for other road users. A bus that is disabled could result in a transfer of passengers in an uncontrolled environment, which may create a risk of injury.

Motor Coach Industries (MCI) will notify owners by mail and advise you to replace the engine coolant hoses. They will supply you with the replacement parts and instructions for completing the repairs.

On certain buses, the brake hoses may be routed incorrectly and could become damaged or fail. If this happens, air could leak from the hose and cause a delay in the front brakes activating. This would reduce braking performance.

Reduced brake performance can cause extended stopping distances and increase the risk of a crash.

Motor Coach Industries (MCI) will notify owners by mail and instruct you to inspect the brake hoses. MCI will supply replacement parts and advise owners to replace any hoses that are leaking or damaged.

On certain motor coaches, the left-rear side window may not be properly attached. This could cause the window to separate from the vehicle.

If the window separates, it could fall and become a hazard for road users and bystanders. This could create a risk of injury and/or a crash.

The company will notify owners by mail. Owners can choose to have the necessary parts and instructions sent to them to complete the repair themselves, or they can take their vehicle(s) to a dealer to inspect the window mounting. The window will be repaired or replaced as necessary and retaining clips will be installed. Note: This recall supersedes recall 2018-171. All vehicles require a new inspection and repair under this recall.

Certain motor coaches equipped with the optional 60 passenger seating arrangement do not conform to the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 217 - Bus Window Retention, Release and Emergency Exits. The motor coaches do not meet the minimum emergency exit requirements of the standard, which could increase the risk of injury in the event of an emergency. Correction: Dealers will install 2 additional emergency exit windows and emergency exit labelling.

A failure of this component (seats and restraints) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles, the front sway bar could crack at one of the bushing/clamp locations. This could affect vehicle handling and increase the risk of a crash causing injury and/or damage to property. Correction: Vehicles will be fitted with a new sway bar of an updated design. Note: This recall supersedes recall 2017-175

A failure of this component (suspension) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 121 - Air Brake Systems. Clamps securing the front brake hoses may have been over-tightened at time of assembly. This could distort the brake hoses, potentially causing damage and leaks. If a leak occurs, it would cause delay brake actuation, and could cause the vehicle to fail to conform to the standard. A delay in brake actuation would increase stopping distances, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect and repair air hoses and clamps as necessary.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard 121 - Air Brake Systems. Due to an error in programming, the low air pressure audible and visual warnings may not occur during a low pressure event, contrary to the requirements of the Standard. In the event of a loss of air pressure in the rear air tank (primary) system, the audible and visual warnings notifying the operator of a condition that could result in reduced service brake performance, or unexpected application of the parking brakes, may not occur. Continued operation of the vehicle with a low primary air system condition could increase the risk of a crash causing injury and/or damage to property. Correction: The manufacturer's field service organization will reprogram affected vehicles. Note: The dashboard mounted air pressure gauge does display the correct system air pressure.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).