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Service bulletins for the 2015 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.

1134 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
TT 27-16-022017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Brand specific Alignment rack software information to address calibration concerns for adaptive cruise control.
Update Bulletin2017-11-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. UPDATE Technical Bulletin (TDI Battery Management Software): This update has been proactively released to prevent the battery from becoming discharged due to a unique set of circumstances during the CAN bus diagnostic phase, leading to excessive parasitic draw and a discharged battery while the vehicle is parked.
V191401 20225492017-10-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Technical Bulletin (Electric Coolant Fans Continue to Run after Ignition is Switched OFF): This documentation informs it is considered normal operation for the electric coolant fans to continue to run for up to 15 minutes after the ignition is switched off in gasoline engine applications, and up to 16 minutes in diesel engine applications. The production solution to service this issue is that no production change is required.
V911413 20343092017-10-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Bulletin (Car-Net Operating Control Unit (OCU/J949) Service Guidelines & General Information): For informational purposes this document informs of Software related fault codes Software operating characteristics Swapping of OCU During PDI, LED does not illuminate issues Unsuccessful Over The Air Registration (OTAR) Does not include the "S" trim for Passat, Jetta, Beetle, and Tiguan.
Update Bulletin2017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. UPDATE Technical Bulletin (TDI Battery Management Software): The battery can become discharged when the ECM "wakes-up" the CAN bus to do a diagnostic (~9 hours after vehicle shut-off). During that diagnostic time-window, if the door is opened or the ignition is switched ON, the ECM goes into a mode that can continuously wake-up the CAN bus, leading to excessive parasitic draw and a discharged battery while the vehicle is parked. This update has been proactively released to prevent the battery from becoming discharged due to a unique set of circumstances during the CAN bus diagnostic phase, leading to excessive parasitic draw and a discharged battery while the vehicle is parked.
TT 37-14-012017-10-31. Service bulletin. ELECTRICAL SYSTEM. Tech Tips (No Mechatronic Communication DTC 01315): For communication faults set in various modules indicating loss of, or no communication with the mechatronic this document informs what is needed If you find that the barrel connector lock was not properly secured.
V011504 20400572017-10-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Technical Bulletin: This document contains the fault codes for Diesel Particulate Filter issues. It also contains the procedure to update applications software
V241502 20401792017-10-31. Service bulletin. ELECTRICAL SYSTEM. Technical Bulletin (DTC P2014 Intake Manifold Position Sensor -G336- Replacement): Direction on proper part replacement when diagnosing fault code P2014 in the ECM
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
TT 27-15-012017-10-31. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. Tech Tips: No Crank, No Start After Cold Soak issues
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
TT 57-10-152017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Tech Tips: Vehicles with Immobilizer with Download/Discharge? New Key Will Not Program
TT 97-14-02ss12017-10-31. Service bulletin. ELECTRICAL SYSTEM. Tech Tips Damage to Data Link Connector (DLC) from Aftermarket Devices (Cannot Communicate with Vehicle OBD System)
TT 26-16-022017-10-31. Service bulletin. ELECTRICAL SYSTEM. Tech Tips for fault codes P0442 and/or P0457 Loose Evap Lines at Canister
V191601 20225492017-10-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Tech Bullentin concerning Electric Coolant Fans that Continue to Run after Ignition is Switched OFF
V281601 20373862017-10-31. Service bulletin. ELECTRICAL SYSTEM. Glow Plug Pressure Sensor Faults Stored in ECM Fault Memory: When diagnosing MIL ON with glow plug pressure sensor DTC?s it important to perform diagnosis prior to replacing the glow plug.
TT 90-13-02ss32017-10-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. How to Reset Inspection Service and Interval Service software
TT011701_20465672017-10-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Trouble shooting assistance should programming and/or reporting fail during campaign 23Q3 on vehicles equipped with KESSY antitheft system.
TT261701_20465682017-10-31. Service bulletin. ELECTRICAL SYSTEM. Instruction on what to do should the diesel particulate filter (DPF) lamp illuminate in the instrument panel on stock, unsold or stored vehicles as a result of short run times.
VIN-4-A-PIN Dece2017-10-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. VAG03366 in ABS Module
TT911401SS4 20362017-10-25. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT:ELECTRICAL. Direction to check for loose connections resulting in erratic operation
V281404 20373862017-10-21. Service bulletin. ELECTRICAL SYSTEM. Technical Bulletin (Glow Plug Pressure Sensor Faults): When diagnosing MIL ON with glow plug pressure sensor DTC?s it is important to perform a diagnosis prior to replacing the glow plug. This document contains the fault code interperatation after such a diagnosis. the production solution is that the codes were implementated into production. 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 57-10-112017-10-21. Service bulletin. ELECTRICAL SYSTEM. Tech Tips (Comfort Module (J393) or BCM (J519) Replacement): This document informs if a comfort or body control module is replaced during normal diagnosis, make sure the factory mode has been switched OFF. This can be accomplished by selecting guided function of either the J393 or J519 or control module OBD of J393 or J519 then selecting adaptation channel 99. Failure to deactivate factory mode will create a concern where the door locks will not lock and/or unlock with the switch and/or the remotes.
On car analysis-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. On-car analysis list of customer complaints: Mil?on with fault code P046C, untouched vehicles

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