Service bulletin TB23N7a
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10241757 |
| Published by NHTSA | 2023-09-05 |
| Manufacturer's number | TB23N7a |
| Manufacturer's date | 2014-10-01 |
| NHTSA component | ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY THERMAL:MANAGEMENT:SOFTWARE |
NHTSA's summary
TDI Battery Management Software (FED_EMS)
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Hybrid and electric drive
| VOLKSWAGEN BEETLE | 2015 |
|---|---|
| VOLKSWAGEN BEETLE CONVERTIBLE | 2015 (the catalog's model; the bulletin names a series or trim of it) |
| VOLKSWAGEN GOLF | 2015 |
| VOLKSWAGEN JETTA | 2015 |
| VOLKSWAGEN PASSAT | 2015 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 19V615000 | 2019-08-22. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE; STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE |
|---|---|
| 18V464000 | 2018-07-11. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE; STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE |
| 2017455 | 2017-09-20. Electrical |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| VOS-26-42 | 2026-08-05. Service bulletin. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: DA 0019 - Hotfix 12-V battery test(s) – No battery diagnosis - Inconclusive test result. |
|---|---|
| VOS-26-15 | 2026-04-06. Service bulletin. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct multiple test plans: All basic settings test for the following components - Fill and bleed cooling system issue, N493, J338, Camshaft, V465 etc. Use this test for all the basic setting. You will need to select the component you need to run the basic settings. But there are also stand-alone tests for each of those components. |
| VOS-26-01 | 2026-02-06. Service bulletin. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct a test that is not reading any information from the battery data module (BDM) and will output: |
| SM 45-2025 | 2025-09-04. Other. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| V271901201189426 | 2024-09-06. Service bulletin. Battery testing |
| TT 57-21-01 | 2024-08-06. Other. KESSY Key adaptation |
| 931401 | 2024-04-15. Service bulletin. High-voltage repairs on Hybrid and Electric vehicles |
| 911413 | 2024-04-15. Service bulletin. Car-Net? Operating Control Unit (OCU/J949) Service Guidelines & General Information |
| TT961405 | 2024-04-08. Service bulletin. Immobilizer Key/Key Remote Adaptation Test Plan |
| 23N7UPDATEa | 2024-04-01. Service bulletin. TDI Battery Management Software |