Recall 21V408 covers 990 2020 Custom Truck & Body Works-modified Ford F-550 vehicles for LCD display lockup. Free repair at a Ford dealer once available.
Custom Truck & Body Works is recalling 990 2020 Ford F-550 vehicles under recall 21V408 because low-voltage spikes can lock up or disable the Weldon V-Mux Vista IV display. A failed display can delay emergency efforts and increase the risk of injury; Ford dealers will complete the repair free of charge once Custom Truck & Body Works makes the remedy available.
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What's wrong?
The Weldon V-Mux Vista IV Standard LCD display in the 2020 Custom Truck & Body Works Ford F-550 is part of the front display and instrument panel. It gives the driver a screen for information tied to the truck's electrical system. That screen needs steady voltage so it can start, reset, and keep showing information while the vehicle is in use.
On affected trucks, a negative voltage spike during vehicle startup can push the display outside its specified voltage range. The unit is designed to restart after that kind of voltage event, but this version does not always restart successfully. The screen can lock up, go blank, or become nonfunctional because the display revision is more sensitive to voltage drops than other versions, and the wiring installation affects how severe the spike is.
There is no warning sign before failure. The owner notices the problem when the Vista IV screen is blank, locked, or not responding.
Who's affected?
This is an upfitter recall, so the chassis badge alone does not confirm inclusion; the completed-truck build and VIN decide.
| 2020 Custom Truck & Body Works Ford F-550 | instrument panel |
|---|---|
| Units affected | 990 |
| 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 LCD display locks up or stops working, emergency efforts take longer, increasing the risk of injury. There is no warning sign before the display failure, so treat a frozen or blank display as a service issue. Repair will be free at any franchised Ford dealer once available.
What should I do?
- Check your VIN to confirm your 2020 Custom Truck & Body Works Ford F-550 is included in this recall.
- Wait for Custom Truck & Body Works repair instructions before scheduling the IV Standard LCD display replacement.
- Contact a franchised Ford dealer once the remedy opens to schedule the free LCD display replacement that fixes the lockup risk during emergency use.
- Call Custom Truck & Body Works customer service at 1-888-712-2963 with questions and reference recall number 21V408 when you call.
- Bring the recall notice if Custom Truck & Body Works has mailed one.
What happens at the repair
Because this repair is still under development, the final dealer repair cannot be treated as open yet. Once Custom Truck & Body Works opens the remedy, a Ford technician will replace the IV Standard LCD display at no charge. Parts and labor are covered under the recall. The recall notice schedule has not been provided yet. For prior out-of-pocket repairs tied to this LCD display defect, the manufacturer's standard reimbursement plan is on file. Keep repair documentation and ask Custom Truck customer service how to submit it.
| Reimbursement | Reimbursement available |
|---|
Timeline
| June 1, 2021 | NHTSA published the recall |
|---|---|
| June 1, 2021 | Owner notification mailed |
Frequently asked questions
What is recall 21V408?
Recall 21V408 covers 990 2020 Custom Truck & Body Works Ford F-550 vehicles with Weldon V-Mux Vista IV Standard LCD displays. Low-voltage spikes can lock up the display or make it nonfunctional, which can delay emergency efforts and increase injury risk.
What should I do if my 2020 Custom Truck & Body Works Ford F-550 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 21V408. If it is, contact the dealer or Custom Truck & Body Works customer service at 1-888-712-2963 and ask when the LCD display replacement can be scheduled.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Custom Truck & Body Works says dealers will replace the IV Standard LCD displays free of charge once the repair process is ready.
What is the safety risk?
The risk is delayed emergency response. If the LCD display locks up or stops working, the vehicle crew loses display function tied to emergency operations, which can slow emergency efforts and increase the risk of injury.
When will I be notified about recall 21V408?
Custom Truck & Body Works had not provided a recall-notification schedule in the filing. Check your VIN first, then call Custom Truck & Body Works customer service at 1-888-712-2963 with recall 21V408 so they can give current repair scheduling guidance.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V408000 |
|---|---|
| Custom Truck & Body Works customer service | 1-888-712-2963 |
| NHTSA recall # | 21V408 |
| NHTSA recall # (full) | 21V408000 |
Source documents
-
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 →