WenmarOpen by Wenmar Pro

Service bulletins for the 2020 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.

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

By type

By component

By trouble code

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

Bulletins, newest first
TT 91 19 04ss32020-06-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Addressing no green light for Car-Net. Update title.
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.
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.
VOS-20-082020-04-02. Service bulletin. ELECTRICAL SYSTEM. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
TT 01 20 012020-03-05. Service bulletin. ELECTRICAL SYSTEM. ERP fault information.
QT_ext range2020-03-05. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID. Information on the installation of remote start and extended range.
VOS-20-052020-02-08. Service bulletin. ELECTRICAL SYSTEM. This document outlines updates to the ODIS diagnostic software. Updates include corrected diagnostic test plans for the stated vehicles.
TT 91 16 122020-02-08. Service bulletin. ELECTRICAL SYSTEM. Remote start diagnostic information.
V571902_20551902020-01-08. Service bulletin. ELECTRICAL SYSTEM. Key FOB battery testing.
V011905_20577232020-01-08. Service bulletin. ELECTRICAL SYSTEM. Update ECM Programming for driveability concern.
V011812_20146032020-01-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Update model applicability to MY 2020.
Circular 24FD2020-01-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Under certain conditions, the engine may stall at very low speeds (such as while the vehicle is coming to a stop), or when the vehicle is already at a stop with the engine running.
V001904_20548662019-08-07. Service bulletin. ELECTRICAL SYSTEM. SD Set-up to Obtain Software updates.
TT 00 19 012019-08-07. Service bulletin. ELECTRICAL SYSTEM. Vehicle Fuse location assistance.
Quick Tip V1.02019-07-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Remote start and extended range quick tip - Jetta GLI
V571902_205519012019-07-08. Service bulletin. ELECTRICAL SYSTEM. Testing open circuit voltage of key batteries.

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