Safety defect investigations, technical specifications, and manufacturer repair notices for Canadian owners.
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Safety recall notices and repair campaigns registered for the 2019 Ic Bus Ce School Bus in Canada.
On certain school buses, brake fluid may be present in the brake pressure switch and wire harness. As a result, the brake switch could short circuit. Note: This recall is an expansion of recall 23518 (Transport Canada recall no. 2023-322). Certain school buses repaired under that recall require a second repair.
A short circuit can cause wiring to overheat and create the risk of a fire, even while the school bus is parked and turned off.
To reduce the safety risk, International Motors advises that you should park your school bus outdoors and away from other vehicles or structures until the recall repairs have been completed. International Motors will notify owners by mail and advise you to take your school bus to an authorized service facility to replace the brake pressure switch and wire harness.
On certain school buses with hydraulic brakes, the brake pressure switch could leak. If this happens, the brake switch could short circuit.
A short circuit can cause wiring to overheat and create the risk of a fire.
Navistar will notify owners by mail and advise you to take your school bus to an authorized service facility to replace the brake pressure switch. If there is brake fluid found on the brake pressure switch connector or fuse, the wire harness will also be replaced.
On certain school buses equipped with a Cummins B6.7 diesel engine, the electric fuel heater could overheat and melt. Note: This recall replaces Transport Canada recall 2019-149. Vehicles that were repaired under that recall also require this repair.
A fuel heater that overheats could create the risk of a fire. This could also cause the engine to stall, increasing the risk of a crash.
Cummins will notify owners by mail and instruct you to take your school bus to a Cummins authorized service center to disable the fuel heater. The fuel heater will be replaced by installing a plug in its place. Additionally, the fuse supplying electrical power to the fuel heater will be removed and a cover will also be installed over the wire harness connector.
A problem with the left-rear brake caliper on certain school buses may cause the brake pads to drag and overheat. This could cause damage to brake components and to the wheel speed sensor, and could result in the ABS warning light turning on.
In certain school districts, an active brake warning light requires a driver to park the bus immediately. This could result in the transfer of children to another bus in an uncontrolled environment.
The company will notify owners by mail and instruct them to take their vehicle to an authorized repair facility to replace the left-rear brake caliper.
On certain vehicles equipped with a Cummins B6.7 diesel engine, the electric fuel heater could overheat and melt.
A fuel heater that overheats could create the risk of a fire. This could also cause the engine to stall, increasing the risk of a crash.
Cummins will notify owners by mail and instruct them to take their vehicle to a Cummins service location to install a new fuel heater and correct the wiring to the fuel heater. Additionally, the fuel heater fuse will be changed to a 30-amp fuse, and the fuse size information in the owner’s manual and vehicle-mounted fuse map will be updated.
On certain school buses, the brake pressure switch was made using an incorrect material that could swell when exposed to brake fluid. This could result in the switch becoming stuck in the on position and cause the brake warning light to illuminate. While the brake system would continue to function normally, an operator may be required to stop the vehicle and transfer occupants to another bus. This could create a hazardous situation with students near the roadway for an indeterminate amount of time, and expose them to an increased risk of injury. Correction: Dealers will inspect the lot code on the brake pressure switch and replace as necessary. Note: This problem would set fault code 33-520941-5.
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).
On certain school buses, a brake air line may be routed improperly and could result in a kinked line. This could cause the vehicle to pull to the right during braking or cause improper operation of the anti-lock braking system (ABS). This could create the potential for a loss of control, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect and reroute the air line from the lower relay valve YAW port to the left brake modulator valve as necessary. Any kinked air lines will be replaced.
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).
On certain vehicles, the spring-actuated parking brake may have been improperly assembled. This could result in an internal air leak or a complete separation of the parking brake from the service brake chamber, either of which would cause a loss of braking on the affected wheel assembly. This could cause a sudden, unexpected increase in stopping distance, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect and replace affected brake chamber assemblies.
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 school buses may fail to conform to the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 217 – Bus Window Retention, Release and Emergency Exits. The release handle for the emergency windows may be difficult to pull, which in the event of a crash or vehicle fire, could hamper passengers' efforts to quickly exit the vehicle, increasing the risk of injury. Correction: Dealers will apply dry lubricant to the latch assembly and cycle the handle to work the lubricant in.
A failure of this component (structure) 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 equipped with 8.8L liquid propane gas engines, the liquid propane delivery module (LPDM) relay for the propane booster pump and scavenge pump may experience intermittent continuity where the contacts in the relay may not make contact. This could cause the fuel pump to stop running, which could result in a hard start, or an unexpected engine stall without the ability to restart, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the LPDM relay with a relay that has no manual adjustment.
A failure of this component (engine) 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).
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