P1DB7 on Alfa Romeo vehicles
P1DB7 is named on 19 Alfa Romeo model years (2017–2026): 19 manufacturer filings and 0 owner reports in NHTSA’s files, across Giulia, Stelvio.
Which Alfa Romeo model years name P1DB7
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2026 Alfa Romeo Giulia | Power Train | 1 | — |
| 2026 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2025 Alfa Romeo Giulia | Power Train | 1 | — |
| 2025 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2024 Alfa Romeo Giulia | Power Train | 1 | — |
| 2024 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2023 Alfa Romeo Giulia | Power Train | 1 | — |
| 2023 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2022 Alfa Romeo Giulia | Power Train | 1 | — |
| 2022 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2021 Alfa Romeo Giulia | Power Train | 1 | — |
| 2021 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2020 Alfa Romeo Giulia | Power Train | 1 | — |
| 2020 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2019 Alfa Romeo Giulia | Power Train | 1 | — |
| 2019 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2018 Alfa Romeo Giulia | Power Train | 1 | — |
| 2018 Alfa Romeo Stelvio | Power Train | 1 | — |
| 2017 Alfa Romeo Giulia | Power Train | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Alfa Romeo filings that name P1DB7
Source: NHTSA manufacturer communicationsBulletins and campaigns Alfa Romeo filed with NHTSA whose summary names P1DB7. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- S2621000003 REV. A Service bulletin2026-03-09 · Power Train
- The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
What P1DB7 means
Source: SAE J2012 / OBD-IIP1DB7 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what Alfa Romeo and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P1DB7 a known problem on Alfa Romeo vehicles?
It is a documented one: NHTSA's files hold 19 manufacturer filings and 0 owner reports naming P1DB7 on 19 Alfa Romeo model years (2017–2026). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Alfa Romeo models does P1DB7 appear on most?
2026 Giulia (1 document), 2025 Giulia (1 document), 2024 Giulia (1 document).
Does P1DB7 on a Alfa Romeo mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.