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Vehicle recall 21V289000 · April 23, 2021

REV Ambulance Type I and Type IX

These displays may experience low voltage spikes, causing the LCD display to lock up or become nonfunctional, due to varying electrical installations.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
REV Ambulance Group Orlando, Inc. (REV) is recalling certain 2019-2021 Type I and IX vehicles equipped with Weldon V-Mux Vista IV LCD displays used for controlling emergency vehicle lighting and HVAC functions. These displays may experience low voltage spikes, causing the LCD display to lock up or become nonfunctional, due to varying electrical installations.
Consequence
A locked up or non-functional LCD display can delay emergency efforts, which can increase the risk of injury.
Remedy
REV has notified owners, and Weldon, a division of Akron Brass will provide a replacement display, free of charge. Owner notification letters were mailed on May 5, 2021. Owners may contact REV customer servicer at 1-855-661-9232.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign
21V289000
Reported to NHTSA
April 23, 2021
Filed by
REV Ambulance Group Orlando, Inc.
Owner notification
May 5, 2021
Vehicles potentially affected
20
Initiated by
the manufacturer
Components
Electrical system › Instrument cluster/panel
Recall 21V289000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your REV Ambulance been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A REV Ambulance dealer can also check your VIN. Recall repairs are free.