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Service bulletin TB-23N7

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10057038
Published by NHTSA2015-04-01
Manufacturer's numberTB-23N7
Manufacturer's date2014-10-15
ReplacesUTB-23N7-A
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

VOLKSWAGEN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION UPDATED TO PREVENT BATTERY FROM DISCHARGING DUE TO CIRCUMSTANCES THAT ARE UNIQUE DURING DIAGNOSTIC PHASE OF CAN BUS. MODEL 2015 PASSAT, JETTA, GOLF, BEETLE & CONVERTIBLE. *PE UPDATED 4/3/15. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, 12-volt battery

Vehicles listed
VOLKSWAGEN JETTA2015
VOLKSWAGEN PASSAT2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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