NHTSA Recall 23V478000: Dc/dc converter (electrical system)
Toyota Motor Engineering & Manufacturing reported this safety recall to NHTSA on , covering an estimated 43,442 vehicles. It affects 2 models including the Lexus NX450H+.
| NHTSA campaign | 23V478000 |
|---|---|
| Manufacturer campaign | 23TB07/23LB01 |
| Component | ELECTRICAL SYSTEM › PROPULSION SYSTEM › DC/DC CONVERTER |
| Report received | July 12, 2023 |
| Owner notification | December 29, 2023 |
| Initiated by | Manufacturer |
Defect
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2022 RAV4 Prime and 2022 Lexus NX450h+ plug-in hybrid electric (PHEV) vehicles. The electric current rectifying module contained within the DC-DC converter may have been damaged during production, which can result in an electrical short-circuit.
Safety risk
A short circuit can cause the DC-DC converter to overheat, increasing the risk of a vehicle fire.
Remedy
Owners are advised not to charge their vehicles when the ambient air temperature is below or expected to drop below 41 degrees Fahrenheit (5 degrees Celsius). Dealers will replace the DC-DC converter, free of charge. Owner notification letters were mailed December 29, 2023. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's number for this recall is 23TB07/23LB01.
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.nhtsa.gov.
Vehicles covered by recall 23V478000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.