Alfa Romeo bulletin 18-003-25
What it says"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): P0606 - Control Module… NHTSA’s full summary ↓
Alfa Romeo filed this with NHTSA as a service bulletin dated Mar 19, 2025, received Feb 11, 2025, about the power train — 2 documents under this number: 18-003-25 REV. A and 1 more. It names 1 model year (2023). 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 communication"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software"
Trouble codes it names: P0606
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-003-25 REV. A | Service bulletin | Mar 19, 2025 | 11015905 | PDF, 138 KB |
| 18-003-25 | Service bulletin | Feb 8, 2025 | 11014159 | PDF, 133 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-06-EG | Module, Powertrain Control (PCM) - Inspect | 0.2 hrs |
| 18-19-06-EH | Module, Powertrain Control (PCM) - Inspect and Reprogram | 0.8 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Alfa Romeo’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.
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 6 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.
More bulletins about the power train
Source: same model, same component group8 other manufacturer communications filed against the Alfa Romeo Stelvio under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2621000003 | Service bulletin | Mar 9, 2026 | The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8… |
| 18-006-25 | Service bulletin | Mar 20, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-013-25 | Service bulletin | Mar 8, 2025 | "Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle… |
| 18-007-25 | Service bulletin | Feb 26, 2025 | "Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle… |
| 2101723 | Service bulletin | Jun 30, 2023 | Flash: Transmission Control Module (TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inv… |
| 1804123 | Service bulletin | Jun 29, 2023 | Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves… |
| 1804123A | Service bulletin | Jun 2, 2023 | Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further inves… |
| Reference46A | Service bulletin | Jun 1, 2023 | Customer Satisfaction Notification 46A - Powertrain Control Module Software |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Alfa Romeo, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Alfa Romeo 18-003-25 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 18-003-25 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 18-003-25 cover?
The manufacturer filed it against 1 model year: 2023 Alfa Romeo Stelvio. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.