Alfa Romeo bulletin Reference46A
What it saysCustomer Satisfaction Notification 46A - Powertrain Control Module Software NHTSA’s full summary ↓
Alfa Romeo filed this with NHTSA as a service bulletin dated Jun 1, 2023, received Aug 21, 2023, about the power train. It names 2 model years (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 communicationCustomer Satisfaction Notification 46A - Powertrain Control Module Software
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Reference46A | Service bulletin | Jun 1, 2023 | 10241053 | 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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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 8 complaints with NHTSA since 2015. 4 of them name Electrical System — 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.
Leasing car since November 11, 2023. Car has been in service four times for various problems regarding engine light on, throttle problems, gas emission problems, headlight not working, heater not working, I am very anxious and fearful of driving car. Dealership has had car in for service more than I have had car in my possession
2023 Alfa Romeo Stelvio · Electrical System · filed with NHTSA Jan 21, 2023
The back up camera has failed to display on the radio screen when the vehicle is placed in reverse on multiple occasions. The Alfa Romeo Stelvio has poor rear visibility due to a small rear window placed at a relatively shallow angle making the backup camera a necessary safety feature to safely operate the vehicle.
2023 Alfa Romeo Stelvio · Electrical System · filed with NHTSA Oct 31, 2024
2023 Alfa Romeo Stelvio estrema - informant system, which includes the back up camera view has fully malfunctioned and blank causing a back up assistance hazard. There is not an Alfa Romeo dealership in oklahoma and the nearest Alfa Romeo dealership is located in plano, tx.
2023 Alfa Romeo Stelvio · Electrical System · filed with NHTSA Mar 4, 2026
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 group21 other manufacturer communications filed against these Alfa Romeo models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Alfa Romeo list.
| 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… |
| 18-005-25 | Service bulletin | Mar 19, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-004-25 | Service bulletin | Mar 19, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-003-25 | Service bulletin | Mar 19, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-018-25 | Service bulletin | Mar 12, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-017-25 | Service bulletin | Mar 12, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
| 18-016-25 | Service bulletin | Mar 12, 2025 | "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mu… |
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 Reference46A 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 Reference46A 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 Reference46A cover?
The manufacturer filed it against 2 model years: 2023 Alfa Romeo Giulia, 2023 Alfa Romeo Stelvio. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.