TSB VOS-26-42 — Volkswagen Service bulletin

VOS-26-42 is a service bulletin filed with NHTSA by Volkswagen, covering 7 Volkswagen models across the 2009–2026 model years. NHTSA's summary reads: 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 the issue: DA 0019 - Hotfix 12-V battery test(s) – No battery diagnosis - Inconclusive test result.

NHTSA's file names Volkswagen Atlas (2018–2026); Volkswagen Beetle (2009–2010, 2012–2019); Volkswagen Golf (2009–2021); Volkswagen ID.4 (2021–2025); Volkswagen Jetta (2009–2026); Volkswagen Passat (2009–2010, 2012–2022); Volkswagen Tiguan (2009–2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

No. VOS-26-42 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under VOS-26-42, its date, and NHTSA's own summary from the public file.