Recall 22V853 affects 11 2021-2022 Midwest Fire All-Poly Series fire trucks for a road-to-pump shifting software defect. Midwest Fire provides free reprogramming instructions and hardware.
Midwest Fire is recalling 11 2021-2022 All-Poly Series fire trucks equipped with split-shaft transmissions because Class1 Es-Key multiplex system software can prevent shifting between road-to-pump and pump-to-road modes. If a truck cannot shift modes, emergency response can be delayed and injury risk increases; Midwest Fire dealers will complete the recall repair free of charge.
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What's wrong?
The split-shaft transmission on the 2021-2022 Midwest Fire All-Poly Series fire trucks lets the driveline switch from moving the truck on the road to powering the fire pump at a scene. The Class1 Es-Key multiplex system is the electronic control network that tells the truck when to shift between road-to-pump and pump-to-road modes.
On affected trucks, the multiplex programming was changed from the pump operation setting Midwest Fire intended. The system was set to engage at 0 mph instead of the standard 2-4 mph specified for pump operation. That incorrect setting keeps the pump shift command from working as expected, so the truck does not shift between road and pump modes when the operator needs it to.
There is no warning sign before failure. The problem shows up when the operator tries to shift the pump into gear or return the truck from pump mode to road mode and the system does not complete the shift.
Who's affected?
Covers one All-Poly Series configuration across 2021 and 2022, with the same automatic transmission component listed for both model years.
| 2021 Midwest Fire All-Poly Series | automatic transmission |
|---|---|
| 2022 Midwest Fire All-Poly Series | automatic transmission |
| Units affected | 11 |
| Field incidents | NHTSA has logged 2 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
If the system cannot shift modes, an emergency vehicle can lose time reaching or helping people, which increases the risk of injury. For affected All-Poly Series vehicles, treat any mode-shift problem as a service issue and schedule the recall repair soon. Repair is free at any franchised Midwest Fire dealer.
What should I do?
- Check your VIN to confirm your 2021-2022 Midwest Fire All-Poly Series fire truck is included in this recall.
- Contact Midwest Fire customer service at 1-800-344-2059 to arrange the free Class1 Es-Key multiplex software reprogramming that fixes the road-to-pump and pump-to-road shifting problem.
- Bring the owner letter if Midwest Fire mailed one. If not, reference recall number 22V853 when you call.
- Confirm the software update is complete before placing the truck back in emergency-response service.
What happens at the repair
Midwest Fire handles this as a software reprogramming repair, not a parts replacement at a franchised dealer. The company provides the USB to USB cable and instructions needed to update the Class1 multiplex system. The owner downloads the ES-KeyPro II Read Only program, then Midwest Fire logs in remotely and installs the corrected program. The reprogramming hardware, instructions, and remote installation are free under the recall.
Timeline
| November 18, 2022 | NHTSA published the recall |
|---|---|
| December 13, 2022 | Owner notification mailed |
| December 15, 2022 | Dealer notification ended |
| December 15, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V853?
Recall 22V853 covers 11 2021-2022 Midwest Fire All-Poly Series fire trucks with split-shaft transmissions. The Class1 Es-Key multiplex system software can prevent shifting between road-to-pump and pump-to-road modes. Midwest Fire provides the instructions and hardware needed to reprogram the software for free.
What should I do if my 2021-2022 Midwest Fire All-Poly Series is on this recall?
Check your VIN to confirm your specific fire truck is included in recall 22V853. If it is, contact Midwest Fire customer service at 1-800-344-2059 and reference recall 22V853. Midwest Fire provides the reprogramming instructions and needed hardware free of charge.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to correct the defect at no cost. For recall 22V853, Midwest Fire provides the instructions and hardware needed to reprogram the Class1 Es-Key multiplex system software free of charge.
What is the safety risk?
The safety risk is delayed emergency response. If the truck cannot shift between road-to-pump and pump-to-road modes, the crew can lose time when positioning the apparatus for firefighting operations. Midwest Fire's free software reprogramming is the remedy for the affected trucks.
When were owners notified about recall 22V853?
Midwest Fire listed December 15, 2022, as the owner-letter mailing date for recall 22V853. If you bought the fire truck later or never received a notice, check your VIN and contact Midwest Fire customer service with the campaign number.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V853000 |
|---|---|
| Midwest Fire customer service | 1-800-344-2059 |
| NHTSA recall # | 22V853 |
| NHTSA recall # (full) | 22V853000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Report (PDF)
- Download Owner Notification Letter (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 →