Volkswagen bulletin VIN4APIN20241121
What it saysCustomer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button… NHTSA’s full summary ↓
Volkswagen filed this with NHTSA as a manufacturer communication dated Nov 21, 2024, received Dec 5, 2024. It names 16 model years (2021–2024). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCustomer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press (not KESSY); Customer states the seat cover has discoloration (usually yellowing) stains; Customer states MIL-on, U01B000 stored in ECM memory; Customer states seat belt won't retract; Customer states Electrical System Error Message, U04A1 [42304], U04A5 [42336], and/or U04A9 [42444] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000[2170894][2240526], B1248F3[1074443], U17B900[8398624] active DTC’s
Trouble codes it names: P0442 U04A1 U04A5 U04A9
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| VIN4APIN20241121 | Other | Nov 21, 2024 | 11011376 |
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 16 model years this bulletin names have filed 2,670 complaints 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.

Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Volkswagen, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Volkswagen VIN4APIN20241121 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 VIN4APIN20241121 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 VIN4APIN20241121 cover?
The manufacturer filed it against 16 model years: 2024 Volkswagen Atlas, 2023 Volkswagen Atlas, 2022 Volkswagen Atlas, 2024 Volkswagen ID.4, 2023 Volkswagen ID.4, 2022 Volkswagen ID.4 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.