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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.

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By component

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
V0019042054866_42021-09-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. SD creator instruction, updated to include model year 2022.
V8718082049039112021-08-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. Cleaning of R1234YF Refrigerant Circuit
V0118122014603172021-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Software Version Management (SVM)
DC_Passatremst2021-06-03. Service bulletin. ELECTRICAL SYSTEM. This dealer memo is an informational memo regarding that MY21 Passats will only have Remote Start capability through the key fob and will not have Remote Start access through the VW Car-Net App
TT 57 18 02_32021-04-06. Service bulletin. ELECTRICAL SYSTEM. Key battery diagnosis, updated to include additional model year applicability.
V0118122014603162021-03-04. Service bulletin. ELECTRICAL SYSTEM. Software Version Management (SVM) instruction updated to include model year 2021
21ID4ServXprs2021-03-04. Service bulletin. ELECTRICAL SYSTEM. New Doc
V2719012011894162021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Battery testing. Updated to include additional model and model year applicability.
21VWUSELCMN1212021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. "Additional Maintenance Items: Dust & Pollen Filter: Change ""40,000 miles or 2 years, whichever occurs first"""
TT 57 10 152021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Updated key ordering protocol
V0019042054866_22021-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Instruction on how to create S/D cards used to update programming on various control modules.
TT 91 20 092020-08-06. Service bulletin. ELECTRICAL SYSTEM. CarNet, No green light at PDI
TT 91 16 132020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Apple Car Play Information
TT 97 20 01 SS12020-05-07. Service bulletin. ELECTRICAL SYSTEM. Voltage Drop Testing. Updated for picture clarity.
V2719022033978_82020-05-07. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Generator replacement, updated to include model years 2020 & 2021
TT 91 20 042020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Car-Net OCU information.
TT 91 20 032020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Car-Net requirement at PDI.
TT 91 20 022020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Car-Net technical handling.
TT 91 19 042020-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Addressing no green light for Car-Net.

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