Lighting and hvac display may lock up
Defect Summary
Custom truck and body works (custom truck) is recalling certain 2020 f550 vehicles equipped with weldon v-mux vista iv standard lcd displays. these displays may experience low voltage spikes, and cause the lcd display to lock up or become nonfunctional, due to varying electrical installations.
Safety Consequence
If the lcd display becomes locked up or non-functional it can delay emergency efforts, which can increase the risk of injury.
Corrective Action
Dealers will replace the iv standard lcd displays, free of charge. the manufacturer has not yet provided a schedule for recall notification. owners may contact custom truck customer service at 1-888-712-2963.
Similar Recalls
Other recalls from Custom Truck And Body Works or involving Electrical System.
FAQ: Recall 21V408000
Your rights, the repair process, and what each field on this page means.
What is recall 21V408000?
NHTSA recall 21V408000 was issued by Custom Truck And Body Works on June 1, 2021. It addresses: Lighting and hvac display may lock up. The recall affects approximately 990 vehicles, with the defect involving the Electrical System component.
How do I get this recall repaired?
Contact any authorized Custom Truck And Body Works dealer and reference NHTSA recall ID 21V408000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.