2019–2021 Rev Ambulance Type I, 2019–2021 Rev Ambulance Type iX Recall: These displays may experience low voltage spikes, causing the LCD display…
NHTSA campaign 21V289000 · Electrical System · filed Apr 23, 2021 · verified Jul 30, 2026
The defect
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.
The risk
A locked up or non-functional LCD display can delay emergency efforts, which can increase the risk of injury.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Rev Ambulance | Type I | 2019, 2020, 2021 |
| Rev Ambulance | Type iX | 2019, 2020, 2021 |
Related recalls
More Rev Ambulance Type I recalls
- 2019–2024 Rev Ambulance Type I and 1 other model — Outrigger bolts may not be properly tightened, which can…
- 2019–2024 Rev Ambulance Type I and 2 other models — In the event of a short circuit or wiring failure, the…
- 2020–2024 Rev Ambulance Type I and 2 other models — In the event of a short circuit or wiring failure, the…
Other campaigns involving Rev Ambulance vehicles
All Rev Ambulance Type I recalls → · All Rev Ambulance recalls →
Source: NHTSA recall database, campaign 21V289000. Data last verified Jul 30, 2026.