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HomeTrouble codesB15FE
Diagnostic trouble code

B15FE

0 owner reports and 105 manufacturer filings across 42 model years from Lexus, Toyota.

BodyManufacturer-specific105 manufacturer filings

Where B15FE shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2019 Toyota RAV4Equipment7
2019 Toyota SiennaEquipment7
2020 Toyota PriusEquipment6
2020 Toyota Prius PrimeEquipment6
2018 Toyota SiennaEquipment6
2020 Toyota SiennaBack Over Prevention5
2022 Lexus ESEquipment3
2021 Lexus ESEquipment3
2022 Lexus ISEquipment3
2022 Lexus RCEquipment3
2021 Lexus RCEquipment3
2020 Lexus RCEquipment3
2021 Toyota CorollaElectrical System3
2020 Lexus ESEquipment2
2021 Lexus ISEquipment2
2020 Lexus ISEquipment2
2021 Lexus NXEquipment2
2020 Lexus NXEquipment2
2022 Lexus RXEquipment2
2021 Lexus RXEquipment2
2020 Lexus RXEquipment2
2022 Lexus UXEquipment2
2021 Lexus UXEquipment2
2020 Lexus UXEquipment2
2021 Toyota AvalonEquipment Adaptive/Mobility2
2021 Toyota CamryEquipment2
2020 Toyota CamryElectrical System2
2021 Toyota HighlanderEquipment2
2020 Toyota HighlanderElectrical System2
2021 Toyota RAV4Equipment2
2020 Toyota RAV4Electrical System2
2021 Toyota 4RunnerEquipment Adaptive/Mobility1
2020 Toyota 4RunnerElectrical System1
2021 Toyota C-HREquipment1
2020 Toyota C-HREquipment1
2020 Toyota CorollaEquipment Adaptive/Mobility1
2021 Toyota PriusEquipment Adaptive/Mobility1
2021 Toyota RAV4 PrimeEquipment1
2021 Toyota TacomaEquipment1
2020 Toyota TacomaEquipment Adaptive/Mobility1
2021 Toyota TundraElectrical System1
2020 Toyota TundraEquipment Adaptive/Mobility1

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

What it gets filed under

Equipment 68Back Over Prevention 13Equipment Adaptive/Mobility 11Electrical System 8Steering 4Parking Brake 1
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Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names B15FE. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What B15FE means

Source: SAE J2012 / OBD-II

B15FE is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

Common questions about B15FE

Source: NHTSA files and the OBD-II standard

Why does this page not define B15FE?

Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.

Can I keep driving with B15FE stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.