Toyota bulletin T-SB-0045-23
What it saysTSB: Some 2019 ? 2023 model year Tacoma Double Cab vehicles may exhibit a whine noise from the rear of the vehicle. NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Jul 21, 2023, received Aug 28, 2023, about the power train. It names 5 model years (2019–2023). 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 communicationTSB: Some 2019 ? 2023 model year Tacoma Double Cab vehicles may exhibit a whine noise from the rear of the vehicle. This condition may occur while driving around 50 mph (80 kph) at constant speed, slight acceleration, or slight deceleration. This condition may be caused by rear differential vibration transferring through the chassis and body
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0045-23 | Service bulletin | Jul 21, 2023 | 10241402 | not found |
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 5 model years this bulletin names have filed 503 complaints with NHTSA since 2015. 86 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.
On the 2019 Toyota Tacoma, the 24 owners who gave an odometer reading for Power Train reported it at a median of 1,500 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Vehicle purchased less than year ago. Vehicle has approximately 10,000 miles on it. I am on my second rear differential replacement. The original and the first replacement were both making a whining noise. Dealer inspected and found metal shavings in both. There are numerous complaints of similar situation on Tacoma owner websites.
2021 Toyota Tacoma · Power Train · filed with NHTSA Jun 14, 2022 · ODI 11469227
The contact owns a 2022 Toyota Tacoma. The contact stated that while driving at an undisclosed speed, the gear shifter turned hard. The contact also stated that while shifting the gear, she noticed an abnormal sound. The contact stated that no warning lights were illuminated. The vehicle was taken to the dealer.
2022 Toyota Tacoma · Power Train · filed with NHTSA Apr 26, 2024 · ODI 11585485
With the truck warmed up: pushing the gas pedal almost to the floor to enter traffic the truck just sat there and did not move this happened twice. The only way the truck would move was to push the gas pedal slow and enter the flow of traffic at reduced speed.
2020 Toyota Tacoma · Power Train · filed with NHTSA Jan 26, 2021 · ODI 11390085
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 group9 other manufacturer communications filed against the Toyota Tacoma 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-0049-26 | Service bulletin | Aug 19, 2026 | Some 2022 – 2025 model year Tundra Hybrid, 2023 – 2025 model year Sequoia Hybrid, 2024 –2025 Land Cruiser and Tacoma Hybrid, and 2025 4Runne… |
| 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-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. |
| T-SB-0076-24 | Service bulletin | Sep 9, 2024 | Some 2024 model year Tacoma vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) presen… |
| T-TT-0758-24 | Service bulletin | Jul 15, 2024 | When replacing the transmission, if debris is found in the pan, it is required to also replace the torque converter. If the torque converter… |
| T-SB-0058-24 | Service bulletin | Jul 8, 2024 | Some 2024 model year Tacoma vehicles equipped with a RC60F manual transmission / transaxle may exhibit a condition where the vehicle is unab… |
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-0045-23 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-0045-23 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-0045-23 cover?
The manufacturer filed it against 5 model years: 2023 Toyota Tacoma, 2022 Toyota Tacoma, 2021 Toyota Tacoma, 2020 Toyota Tacoma, 2019 Toyota Tacoma. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.