Recall 22V909 covers 6,948 2023-2024 Ic Bus Resb, Cesb, and EV school buses for loose rear-axle fasteners. Free repair at any franchised Ic Bus dealer.
Ic Bus is recalling 6,948 2023-2024 Resb, Cesb, and EV school buses because fasteners connecting the transverse torque arm to the rear axle housing were tightened incorrectly. A shifting rear axle can cause loss of handling and control or instability during an emergency evacuation, and Ic Bus dealers will complete the repair free of charge.
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What's wrong?
The transverse torque arm on 2023-2024 Ic Bus Resb, Cesb, and EV school buses is a suspension link that helps hold the rear axle in position under the bus. Its fasteners, a bolt and hex nut at the rear axle housing, keep that arm tight so the axle stays centered instead of moving side to side.
On affected buses, the assembly tool told the operator the joint had reached the required tightness when it had not. That left the torque arm fasteners under-tightened. Once the bus was in service, those fasteners loosened or went missing, which lets the rear axle shift sideways against the bus body.
Drivers can notice a loose feeling while driving or a metallic clunking noise from the rear of the bus. During a pre-trip or post-trip inspection, the rear axle can also look off-center compared with the bus body.
Who's affected?
Covers the Resb, Cesb, and EV bus models across the 2023 and 2024 model years, all tied to the same suspension component.
| 2023 Ic Bus Resb | suspension component |
|---|---|
| 2023 Ic Bus Cesb | suspension component |
| 2024 Ic Bus Cesb | suspension component |
| 2023 Ic Bus EV | suspension component |
| Units affected | 6,948 |
| Field incidents | NHTSA has logged 19 field incidents to date. |
The year and model narrow the list, but the VIN decides. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
A rear axle that shifts side to side can reduce handling and control and raise crash risk. A loose axle also creates instability during emergency evacuation, which raises injury risk. Watch for a loose driving feel, rear metallic clunking, or an axle that looks off center. Drive cautiously and schedule the repair soon. Repair is free at any franchised Ic Bus dealer.
What should I do?
- Check your VIN to confirm your 2023-2024 Ic Bus Resb, Cesb, or EV is included in this recall.
- Contact a franchised Ic Bus dealer to schedule the free fastener replacement and tightening that secures the transverse torque arm to the rear axle housing.
- Bring the recall notice if Ic Bus mailed one. If not, reference recall number 22V909 when you call.
- Drive cautiously until the repair is complete, since a loose rear axle can reduce handling and control.
What happens at the repair
At the dealer, an Ic Bus technician replaces and tightens the fasteners that connect the transverse torque arm to the rear axle housing. The recall repair is available now, and parts and labor are free. If you already paid for related fastener or rear axle work before the recall letter, Navistar's standard reimbursement plan applies. Follow the reimbursement instructions in the owner letter and bring repair invoices or payment records to support the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 8, 2022 | NHTSA published the recall |
|---|---|
| February 6, 2023 | Dealer notification began |
| February 6, 2023 | Dealer notification ended |
| February 6, 2023 | Owner notification mailed |
| February 6, 2023 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| February 6, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V909?
Recall 22V909 covers 6,948 2023-2024 Ic Bus Resb, Cesb, and EV school buses with torque arm fasteners that were tightened incorrectly. The rear axle can shift side to side, causing loss of handling and control. Dealers will replace and tighten the fasteners for free.
What should I do if my 2023-2024 Ic Bus Resb, Cesb, or EV is on this recall?
Check your VIN to confirm your specific bus is included in recall 22V909. If it is, contact a franchised Ic Bus dealer to schedule the torque arm fastener replacement and tightening. Reference recall number 22V909 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Navistar's remedy says dealers will replace and tighten the rear axle torque arm fasteners free of charge at a franchised Ic Bus dealer.
What is the safety risk?
The safety risk is loss of handling and control if the rear axle shifts side to side. A loose rear axle can also make the bus unstable during an emergency evacuation, increasing injury risk. The repair path is to have the dealer replace and tighten the affected fasteners.
Who should call about this school bus recall?
The bus owner, fleet manager, or maintenance contact should confirm the VIN and schedule the dealer repair. If the bus changed districts or ownership, the VIN still decides whether recall 22V909 applies. Navistar customer service is listed at 1-800-448-7825 for this recall.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V909000 |
|---|---|
| Ic Bus customer service | 1-800-448-7825 |
| NHTSA recall # | 22V909 |
| NHTSA recall # (full) | 22V909000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →