Toyota bulletin T-SB-0049-26
What it saysSome 2022 – 2025 model year Tundra Hybrid, 2023 – 2025 model year Sequoia Hybrid, 2024 –2025 Land Cruiser and Tacoma Hybrid, and 2025 4Runner Hybrid vehicles may exhibit a whine noise from the transmission when in Ready… NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Aug 19, 2026, received Sep 9, 2026, about the power train. It names 12 model years (2022–2025). 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 2022 – 2025 model year Tundra Hybrid, 2023 – 2025 model year Sequoia Hybrid, 2024 –2025 Land Cruiser and Tacoma Hybrid, and 2025 4Runner Hybrid vehicles may exhibit a whine noise from the transmission when in Ready ON mode.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0049-26 | Service bulletin | Aug 19, 2026 | 11037198 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 35300-34010 | Tundra HV | — | eBay Motors → |
| 35300-04010 | Sequoia HV | 1 | eBay Motors → |
| 35168-0C020 | Tundra HV | — | eBay Motors → |
| 35168-60050 | Tacoma HV | 1 | eBay Motors → |
| 00289-ATFWS | Automatic Transmission Fluid 5 US qts | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| TC2604 | R&R Oil Pump w/ Motor Tundra HV Sequoia HV | 1.9 hrs |
Read by machine from the document NHTSA serves (7 pages), read Oct 5, 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 12 model years this bulletin names have filed 1,839 complaints with NHTSA since 2015. 415 of them name Power Train — 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.
The contact owns a 2025 Toyota Tacoma. The contact received notification of NHTSA Campaign Number: 25V656000 (POWER TRAIN); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue.
2025 Toyota Tacoma · Power Train · filed with NHTSA Jan 16, 2026 · ODI 11711533
Was told the electric pump housed within the transmission failed and is not sold separately so I need a whole new transmission. No ETA on when that may actually happen. When I shifted from Park into Reverse, Neutral and Drive and then back into Park I get a horrible screeching sound and was told that the truck is not safe to drive
2024 Toyota Land Cruiser · Power Train · filed with NHTSA Oct 29, 2025 · ODI 11696389
I’ve notice that when coming to a stop or yield when you press the gas pedal to go or continue driving there’s a lag or delay. This has happened more than 4-5 times since I purchased the truck on December 23, 2024. The last time it happened was last Saturday August 9, 2025. Truck was on sport mode, Auto Stop/Start was off.
2025 Toyota Tundra · Power Train · filed with NHTSA Aug 11, 2025 · ODI 11679807
In depth: 2024 Toyota Tacoma transmission and drivetrain problems → · 2024 Toyota Tundra transmission and drivetrain problems → · 2023 Toyota Tundra transmission and drivetrain problems → · 2022 Toyota Tundra transmission and drivetrain 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 power train
Source: same model, same component group18 other manufacturer communications filed against these Toyota models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Toyota list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| T-SB-0111-22 OBSOLETE | Service bulletin | Aug 24, 2026 | OBSOLETE NOTICE August 24, 2026: This bulletin is now obsolete. Please see T-SB-0032-26 |
| T-SB-0032-26 REV1 | Service bulletin | Aug 18, 2026 | Some customers of 2022 – 2026 model year Tundra vehicles equipped with specifically non-hybrid V35A-FTS engines may experience one or more o… |
| T-SB-0032-26 | Service bulletin | May 6, 2026 | Some customers of 2022 – 2026 model year Tundra vehicles equipped with specifically non-hybridV35A-FTS engines may experience one or more of… |
| T-SB-0094-24 OBSOLETE | Service bulletin | Apr 15, 2026 | OBSOLETE NOTICE April 15, 2026: This bulletin is no longer applicable and is now obsolete |
| T-SB-0094-24 REV1 | Service bulletin | Feb 5, 2026 | Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble C… |
| T-SB-0095-24 | Service bulletin | Oct 15, 2024 | Some 2023 model year Sequoia Hybrid and 2022 – 2023 Tundra Hybrid vehicles may exhibit an oil leak between the automatic transmission and th… |
| T-SB-0094-24 | Service bulletin | Oct 14, 2024 | Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble C… |
| T-SB-0076-24 OBSOLETE | Service bulletin | Oct 14, 2024 | OBSOLETE NOTICE October 14, 2024: This bulletin is now obsolete. Please see T-SB-0094-24. |
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-0049-26 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-0049-26 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-0049-26 cover?
The manufacturer filed it against 12 model years: 2025 Toyota 4Runner, 2025 Toyota Land Cruiser, 2024 Toyota Land Cruiser, 2025 Toyota Sequoia, 2024 Toyota Sequoia, 2023 Toyota Sequoia and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.