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Manufacturer communication · Other

Toyota bulletin 21TD03

Toyota filed this with NHTSA as a manufacturer communication dated Jan 6, 2025, received Oct 25, 2021, about the structure — 4 documents under this number: 21TD03 - Dealer. It names 4 model years (2016–2019). A manufacturer communication 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.

What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

DD: Certain 2016-2019 Model Year Double Cab Tacoma Center High-Mounted Stop Lamp ? Water Leak 21TD03 has been updated with part number 00948-CHMHW-01, this part number has been created for CLAIM FILING PUPRPOSES ONLY. Part number 00948-CHMSL-HW should no longer be included when submitting claims.

Kind Other (also filed as Service bulletin) Manufacturer date Jan 6, 2025 Received by NHTSA Oct 25, 2021 Components Structure, Electrical System, Unknown Or Other First dated Sep 8, 2021

Documents filed under this number

DocumentKindDatedNHTSA id
21TD03OtherJan 6, 202511014176
21TD03OtherJul 16, 202411007448
21TD03OtherJul 16, 202411006154
21TD03 - DealerService bulletinSep 8, 202110202457

The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it at a service desk; it is what the dealer’s system is keyed on.

Model years it names

Source: as the manufacturer filed them

A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Toyota 21TD03 a recall?

No. A manufacturer communication 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 21TD03 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.

Which vehicles does 21TD03 cover?

The manufacturer filed it against 4 model years: 2019 Toyota Tacoma, 2018 Toyota Tacoma, 2017 Toyota Tacoma, 2016 Toyota Tacoma. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.