Recall 26V454 affects 159 2025-2026 E-One Cyclone N, Typhoon N, and Commercial emergency vehicles for transfer-case disengagement. Repair will be free at any franchised E-One dealer once available.
E-One is recalling 159 2025-2026 Cyclone N, Typhoon N, and Commercial emergency vehicles because the drive/pump mode transfer case can disengage and cut power to the rear wheels. That loss of power can keep the vehicle from moving and raise crash risk; the dealer repair will be free once E-One makes it available.
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What's wrong?
On affected 2025-2026 E-One emergency vehicles, including Cyclone N, Typhoon N, and Commercial models, the IDEX VMUX electrical program controls the drive/pump mode system. That system uses a pneumatic solenoid valve to keep air pressure on the transfer case actuator. The actuator holds the transfer case in drive mode so engine power keeps going to the rear wheels.
In NHTSA campaign 26V454, the problem is the program setting, not a broken gear or clutch. The VMUX unit was not programmed to keep the solenoid valve energized while driving. Without steady air pressure, road vibration can let the transfer case actuator move out of position. If that happens, the transfer case disengages and the truck loses power to the rear wheels.
There is no warning sign before failure. The source record says no warning will come before the truck comes out of drive mode, so the driver should not expect a light, message, or gradual change first.
Who's affected?
Covers Cyclone N, Typhoon N, and Commercial vehicles across the 2025 and 2026 model years, all tied to the automatic-transmission component.
| 2025 E-One Cyclone N | automatic transmission |
|---|---|
| 2025 E-One Typhoon N | automatic transmission |
| 2026 E-One Cyclone N | automatic transmission |
| 2026 E-One Typhoon N | automatic transmission |
| 2026 E-One Commercial | automatic transmission |
| Units affected | 159 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Loss of power to the rear wheels can leave the vehicle unable to move and increase crash risk. There is no warning before this failure, so treat any loss of drive power as a reason to stop safely and contact an E-One dealer. Repair will be free at any franchised E-One dealer once available.
What should I do?
- Check your VIN to confirm your 2025-2026 E-One Cyclone N, Typhoon N, or Commercial emergency vehicle is included in this recall.
- Watch for E-One's owner notification letter, expected August 7, 2026, then contact a franchised E-One dealer about the free repair.
- Ask the dealer to update the VMUX electrical program software, which addresses transfer-case disengagement and loss of power to the rear wheels.
- Reference recall number 26V454 when you call E-One or the dealer.
- Avoid emergency response use if the vehicle loses power to the rear wheels, and arrange inspection before returning it to service.
What happens at the repair
Because the final remedy is not listed as available yet, do not treat this as a scheduled repair until E-One opens the campaign. Once available, an E-One technician will update the VMUX electrical program software that controls the affected drive and pump mode behavior. The dealer repair will be free once it opens, with parts and labor covered under the recall. E-One used its general reimbursement plan on file, so keep invoices for any related out-of-pocket software repair and ask E-One customer service or the service desk how to submit documentation.
| Reimbursement | Reimbursement available |
|---|
Timeline
| July 15, 2026 | NHTSA published the recall |
|---|---|
| July 24, 2026 | Dealer notification began |
| August 7, 2026 | Dealer notification ended |
Frequently asked questions
What is recall 26V454?
Recall 26V454 covers 159 2025-2026 E-One Cyclone N, Typhoon N, and Commercial emergency vehicles. The drive/pump mode transfer case can disengage, which can cut power to the rear wheels and increase crash risk. Dealers will update the VMUX electrical program software for free.
What should I do if my 2025-2026 E-One Cyclone N, Typhoon N, or Commercial is on this recall?
Check your VIN to confirm your specific emergency vehicle is included in recall 26V454. If it is, contact an E-One dealer to schedule the VMUX electrical program software update. Reference recall number 26V454 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to perform the recall repair at no cost. For recall 26V454, E-One dealers will update the VMUX electrical program software free of charge.
What is the safety risk?
The listed risk is loss of power to the rear wheels. If the drive/pump mode transfer case disengages, the emergency vehicle can stop moving, which increases crash risk. Check your VIN, then arrange the free software update through an E-One dealer if your vehicle is included.
When will E-One send recall notices?
E-One expects to mail owner notification letters on August 7, 2026. You do not need to wait for a letter to act. Check your VIN now, and call E-One customer service at 1-352-237-1122 or an E-One dealer with recall number 26V454.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/26V454000 |
|---|---|
| E-One customer service | 1-352-237-1122 |
| NHTSA recall # | 26V454 |
| NHTSA recall # (full) | 26V454000 |
Source documents
This article is generated from NHTSA's primary recall filings and reviewed against the source on July 26, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →