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Service bulletin VOS-18-21

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10149926
Published by NHTSA2018-12-03
Manufacturer's numberVOS-18-21
Manufacturer's date2018-10-03
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Announces revisions to vehicle diagnostics software uninstallation and reinstallation instructions. Supersedes VOS-17-15

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Software

Vehicles listed
VOLKSWAGEN VOLKSWAGEN

Listing a model year does not mean every vehicle of it is concerned: the document says which.