U0100 on Volkswagen vehicles A module has stopped hearing from the engine control module over the vehicle network
U0100 is named on 20 Volkswagen model years (2018–2023): 39 manufacturer filings and 0 owner reports in NHTSA’s files, across Golf / GTI, Beetle, Arteon, Atlas, Tiguan and 1 more.
Which Volkswagen model years name U0100
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Volkswagen Golf / GTI | Engine | 6 | — |
| 2019 Volkswagen Beetle | Engine | 4 | — |
| 2018 Volkswagen Beetle | Engine | 4 | — |
| 2023 Volkswagen Atlas | Engine | 2 | — |
| 2023 Volkswagen Golf / GTI | Engine | 2 | — |
| 2022 Volkswagen Atlas | Engine | 2 | — |
| 2022 Volkswagen Golf / GTI | Engine | 2 | — |
| 2021 Volkswagen Golf / GTI | Engine | 2 | — |
| 2020 Volkswagen Golf / GTI | Engine | 2 | — |
| 2019 Volkswagen Arteon | Engine | 2 | — |
| 2018 Volkswagen Tiguan | Engine | 2 | — |
| 2023 Volkswagen Arteon | Engine | 1 | — |
| 2023 Volkswagen Jetta | Engine | 1 | — |
| 2023 Volkswagen Tiguan | Engine | 1 | — |
| 2022 Volkswagen Arteon | Engine | 1 | — |
| 2022 Volkswagen Jetta | Engine | 1 | — |
| 2022 Volkswagen Tiguan | Engine | 1 | — |
| 2021 Volkswagen Arteon | Engine | 1 | — |
| 2021 Volkswagen Tiguan | Engine | 1 | — |
| 2020 Volkswagen Arteon | Engine | 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.
Volkswagen filings that name U0100
Source: NHTSA manufacturer communicationsBulletins and campaigns Volkswagen filed with NHTSA whose summary names U0100. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- TT 01 19 05_4 Service bulletin2021-11-04 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm) — Software
- Diagnostic assistance for no start or no communication with ECM with DTC U0100 stored.
- TT 01 19 05_6 Service bulletin2024-02-22 · Engine And Engine Cooling — Engine — Engine Control Module (Ecu/Ecm)
- Engine Crank, No Start or No -J623- ECM Communication with DTC U0100 Stored in ECM Fault Memory
What U0100 means
Source: SAE J2012 / OBD-IIA module has stopped hearing from the engine control module over the vehicle network.
A stored code names the test that failed, never the part that caused it. The record above is what Volkswagen 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 U0100 a known problem on Volkswagen vehicles?
It is a documented one: NHTSA's files hold 39 manufacturer filings and 0 owner reports naming U0100 on 20 Volkswagen model years (2018–2023). 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 Volkswagen models does U0100 appear on most?
2018 Golf / GTI (6 documents), 2019 Beetle (4 documents), 2018 Beetle (4 documents).
Does U0100 on a Volkswagen 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.