2021–2022 Toyota RAV4 Prime & Lexus NX450H+ Electrical System Recall 23V478000 (Toyota 23TB07)
NHTSA recall 23V478000 (Toyota recall 23TB07 / 23LB01) covers about 43,442 2021–2022 Toyota RAV4 Prime & Lexus NX450H+ vehicles (electrical system), filed with NHTSA Jul 12, 2023. There is no do-not-drive or park-outside advisory.
Source: NHTSA campaign 23V478000 · Data as of Nov 6, 2026 · By CarWhere Research
What's recalled
Component: Electrical system (propulsion system, dc/dc converter)
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.
The risk
A short circuit can cause the DC-DC converter to overheat, increasing the risk of a vehicle fire.
The remedy and its status
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.
Status: NHTSA lists Dec 29, 2023 as the owner-notification date for this campaign.
Toyota recall number 23TB07 / 23LB01
NHTSA lists the manufacturer's own recall number for 23V478000 as 23TB07, 23LB01. Owner letters and dealer service departments often use this code, so a search for "23TB07 recall" refers to the same campaign.
Affected models and years
Models and model years NHTSA lists for this campaign. Not every vehicle of a listed model and year is included; check by VIN.
| Vehicle | Model years | More |
|---|---|---|
| Toyota RAV4 Prime | 2021–2022 | — |
| Lexus NX450H+ | 2022 | — |
Key dates
- Report filed with NHTSA
- Jul 12, 2023
- Owner notification
- Dec 29, 2023
- Recall initiated by
- the manufacturer
- Filed by
- Toyota Motor Engineering & Manufacturing
Check your VIN for 23V478000
- Find the 17-character VIN on the driver-side dashboard (visible through the windshield), the door-jamb sticker, or your registration.
- Enter it in NHTSA's free VIN recall lookup. It shows every open recall on that exact vehicle, including this one if it applies and hasn't been repaired.
- If 23V478000 is open, call any Toyota dealer's service department and give them the recall number (23V478000 or 23TB07). The repair is free.
Not sure of the exact model or year? Decode it first with the free VIN decoder.
Frequently asked questions
What is recall 23V478000?
NHTSA recall 23V478000 (Toyota recall 23TB07 / 23LB01) covers about 43,442 2021–2022 Toyota RAV4 Prime & Lexus NX450H+ vehicles (electrical system), filed with NHTSA Jul 12, 2023. There is no do-not-drive or park-outside advisory. It covers certain 2021-2022 RAV4 Prime and 2022 Lexus NX450h+ plug-in hybrid electric (PHEV) vehicles.
Is it safe to drive a vehicle with recall 23V478000?
NHTSA's record for 23V478000 carries no do-not-drive or park-outside advisory. The risk NHTSA lists is: "A short circuit can cause the DC-DC converter to overheat, increasing the risk of a vehicle fire." Get the free repair as soon as it is available for your vehicle.
How do I know if my vehicle is affected by 23V478000?
Only a VIN lookup can tell you. Not every vehicle of the listed models and years is included, and repaired vehicles drop off. Enter your 17-character VIN in NHTSA's free recall lookup at nhtsa.gov/recalls, or ask any Toyota dealer to check it.
What is the fix for recall 23V478000, and is it free?
NHTSA's record says: "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)." NHTSA lists Dec 29, 2023 as the owner-notification date for this campaign. Safety-recall repairs are done free of charge at authorized dealers.
What is the Toyota recall number for 23V478000?
NHTSA lists the manufacturer's own recall number as 23TB07, 23LB01. Dealers and owner letters often use that code (23TB07, 23LB01) instead of the NHTSA campaign number 23V478000.
Sources and method
- NHTSA recall record for 23V478000, from NHTSA's public recall campaign database. Problem, risk and remedy text is NHTSA's own wording.
- "Vehicles affected" is NHTSA's potential-units-affected count for the whole campaign.
- Data as of Nov 6, 2026. NHTSA updates campaigns as manufacturers file amendments, so check the official record for the latest.
Related recalls
- 25V744000: 2022–2026 40 models backup camera / back-over prevention (Oct 30, 2025)
- 25V595000: 2023–2025 Toyota & Lexus (17 models) electrical system (Sep 11, 2025)
- 23V041000: 2021 Toyota RAV4 Prime electrical system (Feb 2, 2023)
- 22V239000: 2020–2022 Toyota & Lexus (12 models) electronic stability control (Apr 13, 2022)