WenmarOpen by Wenmar Pro

Service bulletins for the 2021 Volkswagen Jetta

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
TT 91 19 042020-06-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Addressing no green light for Car-Net. Update text to clarify procedure.
TT 97 20 01 SS12020-05-07. Service bulletin. ELECTRICAL SYSTEM. Voltage Drop Testing. Updated for picture clarity.
V9419012011521152020-05-07. Service bulletin. EQUIPMENT:ELECTRICAL. Updated to include additional models and model year applicability.
V2719022033978_82020-05-07. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Generator replacement, updated to include model years 2020 & 2021
TT 97 20 012020-05-07. Service bulletin. EQUIPMENT:ELECTRICAL. Voltage Drop Testing.
V0018072036935172020-05-07. Service bulletin. EQUIPMENT. By-pack instruction for PDI, include additional model year applicability.
VWALLMDLTRECHNS2020-05-07. Service bulletin. EQUIPMENT. Tire Chain Information (for California dealers only) All Model Years. Information only for all other dealers.
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.
21VWUSMN0317202020-04-02. Service bulletin. EQUIPMENT. New document

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