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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
VOS-26-012026-02-06. Service bulletin. ELECTRICAL SYSTEM. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct a test that is not reading any information from the battery data module (BDM) and will output:
V2715032016076_132026-01-07. Service bulletin. ELECTRICAL SYSTEM. Diagnosis for Excessive Current Draw.
V9124052074273_62025-12-05. Service bulletin. ELECTRICAL SYSTEM. A "How To" activate Car Net® 2.0 - Emergency Call Module and Communication Unit -J949-Vehicle is Offline (Not Connected)
V5718012042955_72025-12-05. Service bulletin. UNKNOWN OR OTHER. Replace Door Lock and Cap.
V4622022067177_42025-12-05. Service bulletin. SERVICE BRAKES. Warranty Instruction and guidance
V4418012043620_82025-12-05. Service bulletin. SERVICE BRAKES. Alignment sheet submission.
WLA-25-112025-11-10. Service bulletin. ENGINE. Coolant Bleed Procedure
V8718102043704_242025-11-10. Service bulletin. UNKNOWN OR OTHER. GFF Requirements regardless of concern plus System flush requirement
V3718022033975_142025-11-10. Service bulletin. POWER TRAIN. Cautions about using aftermarket transmission flush machines and aftermarket transmission fluids.
V3416022034406_82025-11-10. Service bulletin. POWER TRAIN. Diagnosing Manual Transmission Noise
V1917012022548_152025-11-10. Service bulletin. ENGINE. G12Evo can now be mixed with previous coolants.
V1718062017813_232025-11-10. Service bulletin. ENGINE. How to measure engine oil consumption.
V1718032037201_202025-11-10. Service bulletin. ENGINE. Proper engine oil level before leaving the factory.
V0123022069588_32025-11-10. Service bulletin. ENGINE. EVAP and Leak Detection Pump replacement components.
V0116152014815_192025-11-10. Service bulletin. ENGINE. A list of suggested fuel stations
V0116132033805_112025-11-10. Service bulletin. ENGINE. Engine misfire diagnostic aid.
V0017132033846_252025-11-10. Service bulletin. ENGINE. Fuel Additive to prevent sporatic misfire
SM 55-20252025-11-10. Other. STEERING. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
V9124052074273_52025-09-04. Service bulletin. ELECTRICAL SYSTEM. Activation
V9124052074273_42025-08-05. Service bulletin. UNKNOWN OR OTHER. How to activate CAR NET including additional diagnostics
V9422012066639_52025-08-05. Service bulletin. EXTERIOR LIGHTING. What to do if customer mentions water droplet within tail lights.
V1719012012855_792025-07-08. Service bulletin. ENGINE. Volkswagen Engine Oil Quality Standards (U.S. Only)
V8720022061094_92025-06-03. Service bulletin. UNKNOWN OR OTHER. How to check for HVAC system leaks using nitrogen.
V4418012043620_72025-06-03. Service bulletin. STEERING. Using Alignment Sheet Submission Form
V1719012012855_782025-05-02. Service bulletin. ENGINE. Volkswagen Engine Oil Quality Standards

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