Toyota bulletin 22TD01
What it saysDP: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Nov 11, 2024, received Sep 15, 2022, about the electrical system — 3 documents under this number. It names 1 model year (2021). 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 communicationDP: Due to improper programming in the EV Control Computer, under certain conditions, the vehicle may erroneously illuminate the warning message ?FCV system malfunction? in the instrument panel. Note: This message can be displayed for other issues unrelated to this Limited Service Campaign and should not be ignored.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 22TD01 | Service bulletin | Nov 11, 2024 | 11011641 | |
| 22TD01 | Service bulletin | Jun 30, 2022 | 10224127 | not found |
| 22TD01 | Service bulletin | Jun 30, 2022 | 10220202 | not found |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 00451-00001 | LBL* Authorized Modification Label | 1 | eBay Motors → |
Read by machine from the document NHTSA serves (12 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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the instrument cluster/panel for the 2021 Mirai →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 1 model year this bulletin names have filed 1 complaint 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 electrical system
Source: same model, same component group26 other manufacturer communications filed against the Toyota Mirai under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Toyota list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| T-SB-0106-22 OBSOLETE | Service bulletin | Jan 30, 2026 | OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26. |
| T-SB-0001-26 | Service bulletin | Jan 28, 2026 | Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool… |
| T-SB-0083-25 | Service bulletin | Nov 7, 2025 | A new head unit software update is available for 2022 – 2025 model year Tundra, and Tundra Hybrid; 2023 – 2025 model year Corolla Cross, Cor… |
| T-SB-0015-24 REV2 | Service bulletin | Sep 9, 2025 | A new head unit software update is available for 2023 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, and Mir… |
| T-SB-0058-23 REV1 | Service campaign | Jun 13, 2025 | The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The… |
| T-TT-0780-25 | Service bulletin | Apr 2, 2025 | To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. T… |
| T-TT-0779-25 | Service bulletin | Apr 2, 2025 | To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. T… |
| T-SB-0106-22 REV2 | Service bulletin | Feb 11, 2025 | Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool… |
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 22TD01 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 22TD01 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 22TD01 cover?
The manufacturer filed it against 1 model year: 2021 Toyota Mirai. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.