Volkswagen bulletin VOS-25-38
What it saysThis is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: Hotfix - 0001 – EVAP Fault Codes Missing Test Plan - P045100: Evaporative Emission… NHTSA’s full summary ↓
Volkswagen filed this with NHTSA as a service bulletin dated May 22, 2025, received Jun 3, 2025, about the engine — 2 documents under this number. It names 2 model years (2024–2025). 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 communicationThis is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: Hotfix - 0001 – EVAP Fault Codes Missing Test Plan - P045100: Evaporative Emission System Pressure Sensor/Switch – No test plan.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| VOS-25-38 | Service bulletin | May 22, 2025 | 11020314 | |
| VOS-25-38 | Service bulletin | May 22, 2025 | 11018945 |
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 135 complaints with NHTSA since 2015. 35 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 2025 Volkswagen Tiguan. The contact stated that while driving approximately 55-60 MPH, the vehicle suddenly became inoperable; the power steering became inoperable, and the brake pedal became difficult to depress. The message "No Key Fob Detected" illuminated.
2025 Volkswagen Tiguan · Engine · filed with NHTSA Jun 12, 2026 · ODI 11743729
My car was less than a year old, had been at the dealership for routine maintenance on September 24th, and with no warning signals from the vehicle's electronics smoke started coming out from the hood while I was ~20 minutes into my drive to work.
2024 Volkswagen Tiguan · Engine · filed with NHTSA Oct 25, 2025 · ODI 11695570
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 group47 other manufacturer communications filed against the Volkswagen Tiguan 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 |
|---|---|---|---|
| V0116152014815_20 | Service bulletin | Sep 17, 2026 | Suggested fuel additive |
| V2426012083103_1 | Service bulletin | Sep 11, 2026 | Reference to Service Action 24BD |
| V1718062017813_24 | Service bulletin | Jul 9, 2026 | Oil Consumption Measurement and Electronic Oil Consumption Measurement |
| 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 |
| Dealer 24TT_20260421 | Service campaign | Apr 21, 2026 | Under this service action, updated engine control module (ECM) software will be installed to provide robustness improvements to the ECM cali… |
| Circular 24TT_20260421 | Service campaign | Apr 21, 2026 | Under this service action, updated engine control module (ECM) software will be installed to provide robustness improvements to the ECM cali… |
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 VOS-25-38 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 VOS-25-38 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 VOS-25-38 cover?
The manufacturer filed it against 2 model years: 2025 Volkswagen Tiguan, 2024 Volkswagen Tiguan. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.