Recall 20V779 affects 72 2018-2021 Rosenbauer Commander, Avenger, and Warrior vehicles for LCD display lockups. Repair is free at any franchised Rosenbauer dealer.
Rosenbauer is recalling 72 2018-2021 Commander, Avenger, and Warrior emergency vehicles because the Weldon V-Mux Vista IV LCD display can lock up or stop working while controlling lighting and HVAC functions. A nonfunctional display can delay emergency efforts and increase injury risk; the Rosenbauer dealer repair will be free once available.
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What's wrong?
The Vista IV Display in affected 2018-2021 Rosenbauer Commander, Avenger, and Warrior vehicles is the LCD control screen for emergency vehicle lighting and HVAC functions. In normal use, it lets the operator see and control those systems from the cab, so the display has to stay powered and responsive while the truck is in service.
The problem is electrical. Negative low-voltage spikes from the vehicle installation can push the display outside its specified voltage range. The display is designed to restart after a voltage event, but these units do not always restart successfully. When that happens, the LCD screen can lock up or stop working, which leaves lighting and HVAC controls unavailable from that display.
There is no warning sign before failure. The display can work normally until a voltage spike causes it to freeze, lock up, or go blank, so the issue is not something an owner or operator can predict from normal driving behavior.
Who's affected?
Covers Commander, Avenger, and Warrior trucks across the 2018-2021 model years, all tied to the instrument panel.
| 2019 Rosenbauer Commander | instrument panel |
|---|---|
| 2018 Rosenbauer Commander | instrument panel |
| 2020 Rosenbauer Avenger | instrument panel |
| 2021 Rosenbauer Commander | instrument panel |
| 2020 Rosenbauer Commander | instrument panel |
| 2020 Rosenbauer Warrior | instrument panel |
| Units affected | 72 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A locked or non-functional LCD display interferes with information needed during emergency response. That delay increases the risk of injury. There is no warning sign listed before the display locks up, so report display freezes or blank screens and schedule service. Repair will be free at any franchised Rosenbauer dealer once available.
What should I do?
- Check your VIN to confirm your 2018-2021 Rosenbauer Commander, Avenger, or Warrior is included in this recall.
- Contact Rosenbauer customer service at 1-651-462-1000 for current repair timing before scheduling service.
- Ask a franchised Rosenbauer dealer about the free IV Standard LCD display repair or replacement that fixes display lockups affecting emergency lighting and HVAC controls.
- Bring the owner notice if Rosenbauer mailed one, and reference recall number 20V779 when you call.
- Limit nonessential use until the display repair is complete if the emergency lighting or HVAC display locks up or stops working.
What happens at the repair
Rosenbauer's remedy is to have the IV Standard LCD displays repaired or replaced. Once the dealer repair is available, a Rosenbauer technician will inspect the affected Vista IV display system and repair or replace the IV Standard LCD display, free of charge. The display controls emergency lighting and HVAC functions, so ask the service desk to confirm whether the display repair or replacement applies to your VIN before any work begins.
Timeline
| December 15, 2020 | NHTSA published the recall |
|---|---|
| December 21, 2020 | Dealer notification began |
| February 1, 2021 | Dealer notification ended |
| March 3, 2021 | Owner notification mailed |
Frequently asked questions
What is recall 20V779?
Recall 20V779 covers 72 2018-2021 Rosenbauer Commander, Avenger, and Warrior emergency vehicles with Weldon V-Mux Vista IV Standard LCD displays. Low voltage spikes can lock the display or make it nonfunctional, delaying emergency lighting or HVAC control during response work.
What should I do if my 2018-2021 Rosenbauer Commander, Avenger, or Warrior is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 20V779. If it is, contact a franchised Rosenbauer dealer to schedule repair or replacement of the IV Standard LCD display. Reference recall number 20V779 or Rosenbauer recall number 20E-078 when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair recall defects at no cost, and Rosenbauer dealers will repair or replace the affected IV Standard LCD displays free of charge. Parts and labor are covered for included vehicles.
What is the safety risk in recall 20V779?
The safety risk is delayed emergency response work. If the LCD display locks up or stops working, lighting and HVAC controls tied to that display can be unavailable when the vehicle is needed, increasing the risk of injury during emergency efforts.
Who can I call about this Rosenbauer recall?
You can call Rosenbauer customer service at 1-651-462-1000. Have the VIN ready and ask whether recall 20V779 applies to the vehicle. If it is included, ask the service team how to schedule the free display repair or replacement.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V779000 |
|---|---|
| Rosenbauer customer service | 1-651-462-1000 |
| NHTSA recall # | 20V779 |
| NHTSA recall # (full) | 20V779000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →