International Motors, LLC recall 26V226

Affected vehicles (1)

Component / system

Defect

International Motors, LLC (International) is recalling certain 2022-2027 IC Bus EVSB school buses. The high voltage disconnect switch may fail to shut off power to the battery.

Risk / consequence

Switch failure may lead to unintentionally working on an energized high voltage battery, increasing the risk of injury or death by electrical shock.

Remedy

Dealers will repair the high voltage disconnect connector bypass circuit, free of charge. Owner notification letters were mailed May 4, 2026. Owners may contact International's customer service at 1-800-448-7825. International's number for this recall is 26505. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning June 1, 2026.

Chronology of events

1. Mar 10, 2026

   03/10/2026: An operator at IC Bus Tulsa Bus Assembly notices an EV Bus was able to drive while the High Voltage Disconnect Switch was in the “Off” position.

2. Mar 11, 2026

   03/11/2026: IC Bus issues a quality alert at Tulsa Bus Assembly to inspect the connection of the HVDC.

3. Mar 11, 2026

   03/11/2026: IC Bus updates installation work instructions of the HVDC.

4. Mar 12, 2026

   03/12/2026: IC Bus implements a delivery stop at Tulsa Bus Assembly and finds 137 units require an HVDC to be connected.

5. Mar 18, 2026

   03/18/2026: IC Bus meets to review the potential failure modes for an unconnected HVDC and determines that an unconnected HVDC will continue to power the high-voltage distribution module while the High Voltage Disconnect Switch is in the “Off” position.

6. Mar 19, 2026

   03/19/2026: IC Bus meets to discuss potential suspect population and containment actions.

7. Mar 23, 2026

   03/23/2026: IC Bus meets to review the containment action of connecting the HVDC and determines it will further assess containment actions.

8. Mar 25, 2026

   03/25/2026: IC Bus determines that it will modify containment actions to ensure proper measures are in place to address the potential for condition to occur during a service event.

9. Mar 26, 2026

   03/26/2026: IC Bus implements delivery stop at Tulsa Bus Assembly Plant. All affected EV Buses were contained and repaired with the modified containment action. The repair involves removing shorting bars in the connector. This repair ensures that if a service event leaves the HVDC disconnected, both the high-voltage will remain off and an error message will appear on the instrument cluster.

10. Apr 1, 2026

    04/01/2026: International finalizes the suspect population.

11. Apr 2, 2026

    04/02/2026: International declares a Safety Recall.

Notification schedule

Dealer notification

Jun 01, 2026 - Jun 01, 2026 No Dealers

Owner notification

Jun 08, 2026 - Jun 08, 2026 Phased Recall