Toyota bulletin T-SB-0054-24
What it saysSome 2023 – 2024 model year Prius Prime vehicles may exhibit a condition where the 12V auxiliary battery charge may deplete due to the plug-in charge control ECU not entering sleep mode when the Plug-in Hybrid Electric… NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Jun 10, 2024, received Jul 23, 2024, about the engine — 2 documents under this number. It names 2 model years (2023–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationSome 2023 – 2024 model year Prius Prime vehicles may exhibit a condition where the 12V auxiliary battery charge may deplete due to the plug-in charge control ECU not entering sleep mode when the Plug-in Hybrid Electric Vehicle (PHEV) charging cable has an extended connection without charging (for more than two hours). The plug-in charge control ECU has been modified to reduce the possibility of this condition.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0054-24 | Service bulletin | Jun 10, 2024 | 11005090 | |
| T-SB-0054-24 | Service bulletin | Jun 10, 2024 | 11005032 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 89260-47170 | Plug-In Charge Control ECU | — | eBay Motors → |
| 89260-47172 | Plug-In Charge Control ECU | — | eBay Motors → |
| 89260-47180 | Plug-In Charge Control ECU | — | eBay Motors → |
| 89260-47182 | Plug-In Charge Control ECU | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| EL2419 | Plug-in Charge Control ECU Reprogramming | 0.7 hrs |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Toyota’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 21 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group10 other manufacturer communications filed against the Toyota Prius Prime under the same component group (engine), newest first. The eight newest are listed; the rest are on the Toyota list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| T-SB-0104-21 OBSOLETE | Service bulletin | Feb 27, 2026 | OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| T-TT-0784-25 REV1 | Service bulletin | Jun 17, 2025 | Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these typ… |
| T-TT-0784-25 | Service bulletin | Jun 13, 2025 | Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these typ… |
| T-SB-0107-20 REV2 | Service bulletin | Feb 12, 2025 | OBSOLETE NOTICE February 11, 2025: This bulletin is now obsolete. Please see T-SB-0021-25. |
| T-SB-0021-25 | Service bulletin | Feb 10, 2025 | Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for… |
| 24TC08 | Service campaign | Jan 30, 2025 | TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24TC08 TI ver. 1 FUEL TANK FILLER CLAMP AND VAPOR LEAK DETECTION CERTAIN 2023-2024 MODEL… |
| T-SB-0016-24 | Service bulletin | Apr 17, 2024 | Some 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON con… |
| T-SB-0120-20 | Service bulletin | Apr 15, 2024 | Some 2021 – 2024 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Toyota, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Toyota T-SB-0054-24 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the T-SB-0054-24 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Toyota warranty extension on file lists the ones Toyota has filed.
Which vehicles does T-SB-0054-24 cover?
The manufacturer filed it against 2 model years: 2024 Toyota Prius Prime, 2023 Toyota Prius Prime. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.