Toyota bulletin T-SB-0048-26 REV1
What it saysSome 2018 – 2019 model year C-HR vehicles may exhibit a grinding and/or whining noise from the transaxle while accelerating from 15 – 30 mph and/or decelerating from 30 – 15 mph. NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Sep 4, 2026, received Oct 8, 2026, about the power train — 1 document under this number: T-SB-0048-26 Rev1. It names 2 model years (2018–2019). 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 2018 – 2019 model year C-HR vehicles may exhibit a grinding and/or whining noise from the transaxle while accelerating from 15 – 30 mph and/or decelerating from 30 – 15 mph. An updated transaxle is available when the specified noise and serial number requirements are met.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0048-26 Rev1 | Service bulletin | Sep 4, 2026 | 11038369 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 30400-10031 | — | — | |
| 04003-40110 | CVT & Torque Converter Kit | 1 | eBay Motors → |
| 90430-18008 | Gasket, Refill Plug | 1 | eBay Motors → |
| 90430-12008 | Gasket, Overflow Plug | 1 | eBay Motors → |
| 00279-CVTFE | CVTF FE ( 6-quart Container) | 1 | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| TC2504 | R&R Transmission Unit with T/C | 6.5 hrs |
Read by machine from the document NHTSA serves (5 pages), read Oct 9, 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 441 complaints with NHTSA since 2015. 281 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 2018 Toyota C-HR, the 27 owners who gave an odometer reading for Power Train reported it at a median of 80,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I park my 2018 C-Hr in the street on south side of my driveway on parking with the car on I close the door and walk to my Toyota land cruiser I have park about 50 feet away on north side of my driveway went something hit me and was the C-Hr goin in reverse by itselft hit me with the rear end was no time and I get cut with the rear tire…
2018 Toyota C-HR · Power Train · filed with NHTSA Sep 9, 2020 · ODI 11354009
Transmission has failed on this 2019 Toyota CHR 2 years after purchase. Took to Toyota dealership and was told this vehicle is notorious for transmission issues from year 2018-2020.
2019 Toyota C-HR · Power Train · filed with NHTSA Jan 5, 2024 · ODI 11563801
In depth: 2019 Toyota C-HR transmission and drivetrain problems → · 2018 Toyota C-HR 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 group2 other manufacturer communications filed against the Toyota C-HR under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 26TE06 | Warranty extension | Sep 22, 2026 | Although the Continuously Variable Transmissions (CVT) is covered by Toyota’s New Vehicle Limited Warranty for 5 years or 60,000 miles… |
| T-SB-0048-26 | Service bulletin | Aug 13, 2026 | Some 2018 – 2019 model year C-HR vehicles may exhibit a grinding and/or whining noise from the transaxle while accelerating from 15 – 30 mph… |
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-0048-26 REV1 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-0048-26 REV1 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-0048-26 REV1 cover?
The manufacturer filed it against 2 model years: 2019 Toyota C-HR, 2018 Toyota C-HR. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.