Toyota bulletin T-SB-0016-24
What it saysSome 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P210015 (Throttle Actuator "A"… NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Apr 17, 2024, received Jul 6, 2024, about the engine — 4 documents under this number: T-SB-0016-24 Rev1 (2 filings) and 2 more. It names 18 model years (2016–2024). 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 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P210015 (Throttle Actuator "A" Control Motor Circuit Short to Battery or Open), or P210019 (Throttle Actuator "A" Control Motor Circuit Current Above Threshold), or P211172 (Throttle Actuator "A" Control System Actuator Stuck Open) present. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. REVISION NOTICE April 17, 2024 Rev1: •The Required Tools & Equipment section has been updated.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0016-24 Rev1 | Service bulletin | Apr 17, 2024 | 11003636 | |
| T-SB-0016-24 Rev1 | Service bulletin | Apr 17, 2024 | 11003581 | |
| T-SB-0016-24 | Service bulletin | Apr 1, 2024 | 11003602 | |
| T-SB-0016-24 | Service bulletin | Apr 1, 2024 | 11003547 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 89661-47640 | Prius | — | eBay Motors → |
| 89661-47641 | Prius | — | eBay Motors → |
| 89661-47642 | Prius | — | eBay Motors → |
| 89661-47643 | Computer, Engine | — | eBay Motors → |
| 89661-47644 | Computer, Engine | — | eBay Motors → |
| 89661-47650 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47651 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47652 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47653 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47654 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47A00 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47A01 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47A10 | Control (ECM/PCM) | — | eBay Motors → |
| 89661-47A11 | Prius Prime | — | eBay Motors → |
| 89661-47C30 | Prius Prime | — | eBay Motors → |
| 89661-47C31 | Prius Prime | — | eBay Motors → |
| 89661-47C40 | Prius Prime | — | eBay Motors → |
| 89661-47C41 | Prius Prime | — | eBay Motors → |
| 89661-47C70 | Prius Prime | — | eBay Motors → |
| 89661-47C71 | Prius Prime | — | eBay Motors → |
| 89661-47C80 | Prius Prime | — | eBay Motors → |
| 89661-47C81 | Prius Prime | — | eBay Motors → |
| 89661-47750 | Prius Prime | — | eBay Motors → |
| 89661-47751 | Prius Prime | — | eBay Motors → |
| 89661-47752 | Prius Prime | — | eBay Motors → |
| 89661-47B40 | Prius Prime | — | eBay Motors → |
| 89661-47B41 | Prius Prime | — | eBay Motors → |
| 89661-47B80 | Corolla HV | — | eBay Motors → |
| 89661-47B81 | Corolla HV | — | eBay Motors → |
| 89661-47D20 | Corolla HV | — | eBay Motors → |
| 89661-47D21 | Corolla HV | — | eBay Motors → |
| 89661-47D22 | Corolla HV | — | eBay Motors → |
| 89661-12X00 | Corolla HV | — | eBay Motors → |
| 89661-12X01 | Corolla HV | — | eBay Motors → |
| 89661-1AC50 | Corolla HV | — | eBay Motors → |
| 89661-1AC51 | Corolla HV | — | eBay Motors → |
| 89661-1AB10 | Corolla HV | — | eBay Motors → |
| 89661-1AB11 | Corolla HV | — | eBay Motors → |
| 89661-1AF40 | Corolla HV | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| EL2326 | Reprogram ECM (PCM) | 0.7 hrs |
Read by machine from the document NHTSA serves (6 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 18 model years this bulletin names have filed 1,226 complaints with NHTSA since 2015. 236 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Coolant is leaking into the catalytic converter. This seems to be a common issue. Toyota issued a technical service bulletin on XXX covering this exactly. Some 2016–2019 Prius and 2017–2019 Prius Prime vehicles may exhibit low coolant level, MIL on with DTC P148F00, and/or poor heater performance due to coolant leakage at the front…
2019 Toyota Prius · Engine · filed with NHTSA Aug 26, 2026 · ODI 11759842
The contact owns a 2022 Toyota Prius Prime. The contact stated while depressing the accelerator pedal, the vehicle failed to accelerate as intended. The contact stated multiple unknown warning lights had been temporarily illuminated. The vehicle was taken to a local dealer however, the cause of the failure could not be determined.
2022 Toyota Prius Prime · Engine · filed with NHTSA Jun 25, 2024 · ODI 11596391
The contact owns a 2022 Toyota Corolla Hatchback. While the contact's wife was driving at an undisclosed speed, the steering power low and the engine stop warning lights illuminated. The vehicle lost motive power in the middle of the road. The contact's infant child was an occupant in the vehicle at the time of the failure.
2022 Toyota Corolla · Engine · filed with NHTSA Apr 2, 2025 · ODI 11652272
In depth: 2020 Toyota Corolla engine problems →
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 group35 other manufacturer communications filed against these Toyota models 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-0110-20 OBSOLETE | Service bulletin | Aug 20, 2026 | OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26. |
| T-SB-0051-26 | Service bulletin | Aug 20, 2026 | This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. |
| 24TE04 | Warranty extension | Aug 11, 2026 | This Customer Support Program provides coverage as it applies to Flow Shut-off Valve Coolant Leak on Certain 2019-2021 Avalon & Avalon HV, 2… |
| T-TT-0801-26 | Service bulletin | Apr 16, 2026 | Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 cha… |
| 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-SB-0119-15 REV2 | Service bulletin | Feb 13, 2026 | OBSOLETE NOTICE February 13, 2026: This bulletin is now obsolete. Please see T-SB-0009-26. |
| T-SB-0009-26 | Service bulletin | Feb 13, 2026 | This bulletin includes basic procedures for performing a rescue charge on Ni-MH high voltage (HV) batteries. This bulletin should be used in… |
| 22TC07 | Other | Nov 17, 2025 | Owner Renotification Letter Due to certain programing in the engine ECU, under certain conditions, the vehicle may stall at low speeds when… |
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-0016-24 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-0016-24 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-0016-24 cover?
The manufacturer filed it against 18 model years: 2024 Toyota Corolla, 2023 Toyota Corolla, 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, 2022 Toyota Prius and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.