Volkswagen bulletin V0123122072378_1
What it saysUpdate Programming Engine/Motor Control module for EVAP system vent valve. NHTSA’s full summary ↓
Volkswagen filed this with NHTSA as a service bulletin dated Dec 11, 2023, received Jan 4, 2024, about the engine. It names 2 model years (2020–2021). 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 communicationUpdate Programming Engine/Motor Control module for EVAP system vent valve.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| V0123122072378_1 | Service bulletin | Dec 11, 2023 | 10247534 | 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.
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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 125 complaints with NHTSA since 2015. 12 of them name Engine — 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.
The contact owns a 2021 Volkswagen Jetta. The contact stated that while reversing at an undisclosed speed, the vehicle lost motive power. The check engine warning light was illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure.
2021 Volkswagen Jetta · Engine · filed with NHTSA Feb 10, 2022 · ODI 11451329
When vehicle goes over 60mph starts to shake really bad and warning not enough power for engine light is on
2020 Volkswagen Jetta · Engine · filed with NHTSA Jan 3, 2022 · ODI 11445991
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 engine
Source: same model, same component group54 other manufacturer communications filed against the Volkswagen Jetta under the same component group (engine), newest first. The eight newest are listed; the rest are on the Volkswagen list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 54E4 / 5537 | Service bulletin | Sep 30, 2026 | Update ECM Control Module Programming |
| V0116152014815_20 | Service bulletin | Sep 17, 2026 | Suggested fuel additive |
| V0126032083018_1 | Service bulletin | Aug 20, 2026 | Update Programming of the Engine/Motor Control Module -J623- |
| V1718062017813_24 | Service bulletin | Jul 9, 2026 | Oil Consumption Measurement and Electronic Oil Consumption Measurement |
| 4C6D | Service bulletin | Jun 24, 2026 | Engine/Motor Control Module software update for DTC 0456 |
| TT 13-20-01_3 | Service bulletin | Jun 18, 2026 | Instruction, how to lubicate engine before initial start. |
| TT 10-18-02_2 | Other | Jun 18, 2026 | Lubricating engine components before reassembly. |
| V1719012012855_81 | Service bulletin | Jun 4, 2026 | Volkswagen Engine Oil Standards |
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 V0123122072378_1 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 V0123122072378_1 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 Volkswagen warranty extension on file lists the ones Volkswagen has filed.
Which vehicles does V0123122072378_1 cover?
The manufacturer filed it against 2 model years: 2021 Volkswagen Jetta, 2020 Volkswagen Jetta. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.