# 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.

- Type: Service bulletin
- NHTSA id: 10057038
- Published by NHTSA: 2015\-04\-01
- Manufacturer's number: TB\-23N7
- Manufacturer's date: 2014\-10\-15
- Replaces: UTB\-23N7\-A
- NHTSA component: ELECTRICAL 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

- 2015 VOLKSWAGEN JETTA
- 2015 VOLKSWAGEN PASSAT

## Other bulletins for the same vehicles and component

- [UPDATE23N7](/bulletins/10240667.md), 2023-08-14, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TDI Battery Management Software Update
- [V271901201189424](/bulletins/10239655.md), 2023-08-04, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Testing and Charging using Midtronics VAS6161 and or GRX3000 Vas Charger
- [TT 27 20 02\_3](/bulletins/10236096.md), 2023-06-06, Service bulletin: EQUIPMENT:OTHER:LABELS; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery adaptation procedure when battery label is missing.
- [V271503201607611](/bulletins/10208920.md), 2022-04-06, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Discharged Battery, Diagnosis for excessive current draw.
- [TT 27 20 02\_1](/bulletins/10185168.md), 2021-01-08, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:LABELS. Battery Id for testing
- [V931902\_2041691](/bulletins/10159341.md), 2019-05-06, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. Update model year applicability.
- [V271902\-2033978](/bulletins/10159017.md), 2019-04-22, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Update to model year applicability. Generator Replacement Charging System inoperative/malfunctions, noise from engine compartment, accessory drive belt damaged or missing.
- [TT 271002](/bulletins/10157828.md), 2019-04-08, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Updated to include model year 2014 thru 2018 applicability.
- [TT 58 18 01](/bulletins/10150809.md), 2018-12-10, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Key Battery Diagnostic Process
- [TT 57 18 02](/bulletins/10149859.md), 2018-12-03, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. Remote Ket battery diagnostics. Updated to change incorrect repair manual group number \(from TT581801 to TT571802\)

JSON: [/v1/bulletins/10057038](/v1/bulletins/10057038)

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