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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: Electrical system are shown. Show all

Bulletins, newest first
V911222 20227392019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Technical Bulletin (Bluetooth System Identification): This document informs of the method to understand how to identify the various Bluetooth systems by: ? Visual Identification ? PR Code ? Part Number
V601203 20195682019-04-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; ELECTRICAL SYSTEM. Technical Bulletin (Sunroof / Sunshade, Will Not Open): The issued of The panoramic sunroof, regular sunroof or sunshade cannot be opened. The sunroof?s ?Basic Setting? has been unintentionally initiated by the customer. This document informs the procedure to reset the settings of the Sunroof / Sunshade so that functionality can be retained. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
TT 96-12-072019-04-01. Service bulletin. ELECTRICAL SYSTEM; STEERING. Tech Tips (Equipped With KESSY ? Key Adaptation Tip): When adapting keys on a vehicle equipped with KESSY, it is recommended to remove the immobilizer reader coil from behind round cover on steering column trim and insert key inside the reader coil. The steering column trim does not need to be completely removed to access reader coil. For vehicles with the Start/Stop button on the steering column, the Start/Stop button assembly can be removed from column trim without disassembling trim. Start/Stop button connector must be disconnected to allow reader coil to be removed from around button assembly. Start/Stop button should be reconnected during key adaptation. This document provides photo examples of the procedure.
TT 90-12-042019-04-01. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Tech Tips (Service Interval Settings after Instrument Cluster Replacement): This document informs that after instrument cluster replacement, service interval maximum values may need to be manually set. To set values manually, use Vehicle self-diagnosis to select 17- Instrument Cluster, then adaptation. Channel ?SIA: maximum value of distance to service? should be set to 16000 km and channel ?SIA: maximum value of time to service? should be set to 372 days.
V011228 20304532019-04-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Technical Bulletin (Update Programming for Stored in ECM Fault Memory issues): The MIL ON with NOx Sensor fault P2201 and/or Exhaust Gas Temperature Sensor faults P050E, P2080, P244C and/or P2478 stored in fault memory due to the Diagnostic strategy being to sensitive. The production solution to this issue was Improved software implemented for model year 2013. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
Update Bulletin2019-04-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. UPDATE Technical Bulletin (UPDATE ? 96C7 Micro Switch for Oil Level): This update has been proactively released to prevent continuous illumination of the ?oil level low? displayed in the MFI after oil has been properly filled by providing the missing signal to instrument cluster as hood is opened and closed. This signal is necessary to reset the oil level indicator in the instrument cluster. This document informs of the method to service this issue to reset the oil level indicator in the instrument cluster
TT 91-12-082019-04-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Tips (Bluetooth Compatibility): This document informs of the web address that can be used to check Bluetooth compatibility for all 2011, and newer vehicles, as well as 2010 Routan
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 57-10-042019-04-01. Service bulletin. ELECTRICAL SYSTEM. Tech Tips (No Communication with the J519 Vehicle Electrical System Control Module/Body Control Module): If no communication can be established to the Vehicle electrical system control module J519 (address word 09) in Guided Fault Finding or Vehicle Self Diagnosis, it may be necessary to cycle door locks. This document informs of the recommended observations that should be taken when performing the procedure.
V961301 20261772019-04-01. Service bulletin. ELECTRICAL SYSTEM. Technical Bulletin (Keyless Entry Inoperative after Access/Start (KESSY) Module Replacement): After replacing the Access/Start (KESSY) module, the keyless entry does not work. The Access/Start (KESSY) module service parts are programmed incorrectly, resulting in a lack of functionality. This document informs of the conditions necessary to allow the software to be reprogrammed
Control Module R2019-04-01. Service bulletin. ELECTRICAL SYSTEM. Quick Reference Update Guide: This document informs of the corresponding software/hardware and disc availability to the customer concerns about a vehicle
TT 0117052019-04-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Coding information for replacement ECM to address specific fault setting after the install.
TT 0117012019-04-01. Service bulletin. ELECTRICAL SYSTEM. Update to existing tip for addressing Kessy vehicles in the AEM flash
TT 90 19 012019-04-01. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. Instructions to address oil sensor warning.
TT 90 11 012019-04-01. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Instrument cluster production mode solution, updated to include additional model and model year applicability.
On-car Analysis2019-04-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. On-car analysis list of customer complaints: Transmission Concerns (including clutch assembly, bevel box and Haldex)
On-car Analysis2019-04-01. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. On-car analysis list from customer complaints: Transmission Concerns (including clutch assembly, bevel box and Haldex)
TT 57 11 082019-03-11. Service bulletin. ELECTRICAL SYSTEM. Remote lock function. Update to model year applicability.
TT 91 18 182019-03-04. Service bulletin. ELECTRICAL SYSTEM:HORN; STEERING: STEERING WHEEL/HANDLE BAR; STEERING. Horn and ancillary steering wheel controls diagnosis.
AEM-2 Passat Veh2019-03-04. Service bulletin. ELECTRICAL SYSTEM. AEM-Correction Approved for Generation 2 Passat Vehicles
analysis list 042019-01-07. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM:IGNITION; STRUCTURE:BODY:DOOR. On-car analysis list of Customer Complaints: Transmission
analysis list 062018-12-10. Service bulletin. ENGINE; ELECTRICAL SYSTEM. On-car analysis list of Customer Complaint: Mil?on with fault code P046C, untouched vehicles
TT 57 10 112018-12-10. Service bulletin. ELECTRICAL SYSTEM. Comfort/BCM Replacement direction, updated to include additional model year applicability.
VW Diagnostic Co2018-12-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. VW Diagnostic Content V2.36.5 Released
VW Diagnostic Co2018-12-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Critical VW Diagnostic Content Update 2.36.5_Delayed

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