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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
TT9113022023-06-13. Service bulletin. ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS:ACCESORY POWER OUTLET/JACK/PORT/USB/SAE/CIGARETTE LIGHTER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. The Apple iPhone 5, iPad fourth generation, and iPod nano seventh generation use a proprietary ?Lightning? connector that is different than the 30 pin dock connector found on previous iPhone and iPod models.
TT911117a2023-06-13. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE. Replacement RNS 510 radio/navigation units may be shipped in transportation safeguard mode and therefore will have no sound output. In order to switch the unit out of this mode, hold down the forward seek button, the back seek button, and the music button at the same time until the unit shuts down. Once the unit is powered back ?ON? the safeguard mode will be deactivated.
TT9111172023-06-13. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE. Replacement RNS 510 radio/navigation units may be shipped in transportation safeguard mode and therefore will have no sound output. In order to switch the unit out of this mode, hold down the forward seek button, the back seek button, and the music button at the same time until the unit shuts down. Once the unit is powered back ?ON? the safeguard mode will be deactivated.
TT9111142023-06-13. Service bulletin. ELECTRICAL SYSTEM. The Bluetooth module has now been integrated into the navigation head unit on 2012-2013 vehicles with RNS 315 navigation part number 1K0 035 274 B or higher. The diagnosis for this system is similar to the 9W7 system. Technical Bulletin 91 11 09 (2026015) can be used for the diagnosis.
TT901302a2023-06-13. Service bulletin. ELECTRICAL SYSTEM. Under the ?Control Module? tab right click on address word ?17 Dash Board?. Open ?Control module OBD?. Click ?
TT9012042023-06-13. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 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.
TB2716012023-05-22. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Generator replacement.
TB2316012023-05-22. Service bulletin. ELECTRICAL SYSTEM. MIL on, No start, Running rough with DTCs P0087,P0088 or P0191 stored in ECM Fault memory.
TB1916012023-05-22. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Electric coolant fans continue to run after ignition is switched off.
V2719022033978102023-04-06. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Generator Replacement
TT 01 20 03_22023-02-07. Service bulletin. ELECTRICAL SYSTEM. Diagnostic assistance for DTC P2201. Updated text with referral to Safety Recall 23T3.
V2719012011894222023-01-06. Service bulletin. ELECTRICAL SYSTEM. Battery testing and charging using special tools VAS6161 & GRX3000VAS Charger. Updated to include additional model year applicability.
561065760A2023-01-03. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. Installation of original remote start feature accessory
561065760A2022-09-26. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. Installation of original remote start feature accessory
CT_batt_charger2022-09-01. Service bulletin. ELECTRICAL SYSTEM. Minimum battery charger requirements during software updates
VOS-22-272022-07-01. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
V2719012011894202022-07-01. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. Battery Testing and Charging using VAS6161 and or GRX3000VAS
V0118122014603182022-07-01. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE; UNKNOWN OR OTHER. Software Version Management (SVM) instruction. Update to require 70amp minimum battery charger during procedure.
V2719012011894192022-06-07. Service bulletin. ELECTRICAL SYSTEM. Battery Testing and Charging using recommended VW test equipment.
TT 27-10-02_42022-06-07. Service bulletin. ELECTRICAL SYSTEM. Battery Tester VAS 6161 introduction.
V2715032016076112022-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Discharged Battery, Diagnosis for excessive current draw.
TT27-11-022022-03-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No charging system voltage.
EN-129132022-03-28. Service bulletin. ELECTRICAL SYSTEM. VW Elsa News Letter
VOS-22-072022-03-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. "Instructional document regarding the installation of a hotfix for the ODIS service software. Hotfix is to be used during the following actions: Brake Electronics (ABS) A3 Passat NMS Software Configuration/Coding
V2719012011894172022-01-06. Service bulletin. ELECTRICAL SYSTEM. Battery testing using VW special tools, updated to include additional model year applicability and include I.D.4.

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