Service bulletin Update Bulletin
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 | 10121605 |
| Published by NHTSA | 2017-10-31 |
| Manufacturer's number | Update Bulletin |
| Manufacturer's date | 2014-10-15 |
| NHTSA component | ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE |
NHTSA's summary
UPDATE Technical Bulletin (TDI Battery Management Software): The battery can become discharged when the ECM "wakes-up" the CAN bus to do a diagnostic (~9 hours after vehicle shut-off). During that diagnostic time-window, if the door is opened or the ignition is switched ON, the ECM goes into a mode that can continuously wake-up the CAN bus, leading to excessive parasitic draw and a discharged battery while the vehicle is parked. This update has been proactively released to prevent the battery from becoming discharged due to a unique set of circumstances during the CAN bus diagnostic phase, leading to excessive parasitic draw and a discharged battery while the vehicle is parked.
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, 12-volt battery, Software
| 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.
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| UPDATE45D7 | 2023-08-14. Service bulletin. TPMS/ESC Software Update |
| UPDATE23N7 | 2023-08-14. Service bulletin. TDI Battery Management Software Update |
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| V011812201460319 | 2023-07-10. Service bulletin. Software Version Management (SVM) instruction. |