Recall 22V370 affects 4 2020-2021 Braun Tlc, Express Plus Type I, and Chief Xl Type I ambulances for lighting failure. Repair is free at any franchised Braun dealer.
Braun is recalling 4 2020-2021 Tlc, Express Plus Type I, and Chief Xl Type I ambulances under recall 22V370 because an extra resistor was installed on a printed circuit board. The defect can disrupt CAN network communication, make vehicle lighting fail, reduce visibility, and increase crash risk; Braun will complete the free repair.
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What's wrong?
The V-mux Hercules HC Node 1.5 in these 2020-2021 Braun Tlc, Express Plus Type I, and Chief Xl Type I ambulances is an electronic control node. It sits on the ambulance electrical system and helps equipment on the CAN network, the vehicle's shared communication line, send and receive commands. That network supports lighting functions, including emergency lighting.
On affected ambulances, the printed circuit board inside the node was built with an extra resistor. A printed circuit board is the flat electronic board that carries signals between small components. The added resistor changes how the network is terminated, which disrupts CAN communication and causes vehicle lighting to fail.
There is no warning sign before failure. Because the defect is inside the control node, the crew is not given a clear symptom before the lighting command stops communicating correctly.
Who's affected?
Spans three ambulance configurations across the 2020 and 2021 model years, all using the same V-mux Hercules HC Node 1.5 module.
| 2020 Braun Tlc | electrical system |
|---|---|
| 2020 Braun Tlc | Wiring |
| 2020 Braun Ambulances Express Plus Type I | electrical system |
| 2020 Braun Ambulances Express Plus Type I | Wiring |
| 2021 Braun Chief Xl Type I | electrical system |
| 2021 Braun Chief Xl Type I | Wiring |
| Units affected | 4 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Inoperable vehicle lighting reduces visibility and increases the risk of a crash. If the lights are not working correctly, schedule the recall repair soon and avoid unnecessary trips until the modules are replaced. Repair is free at any franchised Braun dealer.
What should I do?
- Check your VIN to confirm your 2020-2021 Braun Tlc, Express Plus Type I, or Chief Xl Type I ambulance is included in this recall.
- Contact Braun customer service at 1-877-344-9990 to schedule the free module replacement that fixes the circuit-board resistor issue behind the lighting failure.
- Bring the recall notice if Braun mailed one. Reference recall number 22V370 when you call.
- Avoid driving the ambulance after dark or in low-visibility conditions until the lighting repair is complete.
What happens at the repair
At the dealer, a Braun technician removes the affected Weldon Hercules HC 1.5 I/O nodes and installs replacement nodes. This addresses the module problem that can disrupt CAN network communication and cause vehicle lighting to fail. The recall repair is available now, and Braun covers the replacement parts and labor. Ask the service desk to confirm that campaign 22V370 is open for your VIN before the ambulance is brought in for service.
Timeline
| May 24, 2022 | NHTSA published the recall |
|---|---|
| May 25, 2022 | Dealer notification began |
| May 31, 2022 | Interim owner notification (was planned for this date) |
| June 1, 2022 | Dealer notification ended |
| June 20, 2022 | Owner notification mailed |
Frequently asked questions
What is recall 22V370?
Recall 22V370 covers 4 2020-2021 Braun Tlc, Express Plus Type I, and Chief Xl Type I ambulances with an incorrectly installed resistor on a printed circuit board. The defect can disrupt CAN network communication and cause vehicle lighting to fail. Braun will replace the modules for free.
What should I do if my 2020-2021 Braun Tlc, Express Plus Type I, or Chief Xl Type I is on this recall?
Check your VIN to confirm your specific ambulance is included in recall 22V370. If it is, contact a franchised Braun dealer or Braun customer service at 1-877-344-9990 to arrange the module replacement. Reference recall number 22V370 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Braun's remedy states that the affected modules will be replaced free of charge. The free repair applies through a franchised Braun service location.
What is the safety risk?
The safety risk is failed vehicle lighting. If the lighting stops working, the ambulance has reduced visibility, increasing crash risk. The repair path is to have Braun replace the affected modules for free once your VIN is confirmed in recall 22V370.
When were owners notified about recall 22V370?
Braun mailed owner notification letters on June 20, 2022. If you bought the ambulance used or never received a letter, check your VIN to confirm whether your specific vehicle is included, then contact Braun with recall number 22V370.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V370000 |
|---|---|
| Braun customer service | 1-877-344-9990 |
| NHTSA recall # | 22V370 |
| NHTSA recall # (full) | 22V370000 |
Source documents
-
Download Owner Notification Letter (PDF) - Download Quarterly Report (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 →