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Manufacturer recall number

Toyota recall 23TB07/23LB01

Toyota calls it 23TB07/23LB01. NHTSA filed it as campaign 23V478000 on Jul 12, 2023: electrical system on the 2021–2022 Lexus and Toyota, 43,442 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
23V4780002021–2022 Lexus and ToyotaElectrical SystemJul 12, 202343,442critical
Problem 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. Risk A short circuit can cause the DC-DC converter to overheat, increasing the risk of a vehicle fire. Fix 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.

The manufacturer’s own words as filed for 23V478000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. 23TB07/23LB01 is the number Toyota assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 23V478000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is 23TB07/23LB01 the same recall as 23V478000?

Yes. 23TB07/23LB01 is Toyota’s own number for it; 23V478000 is NHTSA’s. One recall, two references.

Which vehicles does 23TB07/23LB01 cover?

2021–2022 Lexus and Toyota, 43,442 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the 23TB07/23LB01 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.