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Service bulletins for the 2012 Volkswagen Passat

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.

1572 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: 12-volt battery are shown. Show all

Bulletins, newest first
V2719012011894242023-08-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Testing and Charging using Midtronics VAS6161 and or GRX3000 Vas Charger
V2715032016076112022-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Discharged Battery, Diagnosis for excessive current draw.
V271902-20339782019-04-22. 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 2710022019-04-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Updated to include model year 2014 thru 2018 applicability.
TT 27-11-022019-04-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Tech Tips (No Charging System Voltage): This document informs with a general overview of how to inspect and diagnosing a low battery or no charging system concern.
TT 27-11-022019-04-01. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Tech Tips (No Charging System Voltage): This document informs with a general overview of how to inspect and diagnosing a low battery or no charging system concern.
TT 58 18 012018-12-10. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Key Battery Diagnostic Process
TT 57 18 022018-12-03. 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)
V271502 20339782017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: The document refers to diagnosing charging systems for issues
V271503 20160762017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Battery, Discharged, Diagnosis for Excessive Static Current Draw
V271501 20118942017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Battery, Testing and Charging Using Midtronics VAS6161, MCR340V, InCharge 940, or GRX3000VAS Charger
TB-27-13-012013-08-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. VOLKSWAGEN: DUE TO ACCESSORY DRIVE BELT BEING DAMAGED OR MISSING, THE CHARGING SYSTEM IS INOPERATIVE OR MALFUNCTION, AND NOISE IS COMING FROM ENGINE COMPARTMENT. MODEL 2012-2014 ALL VEHICLES EXCEPT ROUTAN, TOUAREG HYBRID, JETTA HYBRID. *PE
TB-37-11-022012-02-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES. VOLKSWAGEN: INFORMATION PROVIDED REGARDING THE BRACKET UNDER THE HOOD HAD THE SHIFTER CABLE INSTALLED INCORRECTLY. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.