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Service bulletin Update Bulletin

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 id10157638
Published by NHTSA2019-04-08
Manufacturer's numberUpdate Bulletin
Manufacturer's date2012-10-10
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

UPDATE Technical Bulletin (UPDATE ? 23K9 Touareg TDI Software): This UPDATE installs new ECM/EDC software to prevent a false illumination of the check engine light. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.

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, Equipment and accessories

Vehicles listed
VOLKSWAGEN TOUAREG2011, 2012

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

Recalls for the same vehicles and component
11V1950002011-03-29. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
VOS-26-422026-08-05. Service bulletin. 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.
VOS-26-152026-04-06. Service bulletin. 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 multiple test plans: All basic settings test for the following components - Fill and bleed cooling system issue, N493, J338, Camshaft, V465 etc. Use this test for all the basic setting. You will need to select the component you need to run the basic settings. But there are also stand-alone tests for each of those components.
VOS-26-012026-02-06. Service bulletin. 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 a test that is not reading any information from the battery data module (BDM) and will output:
V2719012011894262024-09-06. Service bulletin. Battery testing
VWC09112024-04-22. Service bulletin. Volkswagen Carefree Maintenance Program ? Gasoline Engines (Except Routan) - REVISED
9314012024-04-15. Service bulletin. High-voltage repairs on Hybrid and Electric vehicles
9313022024-04-15. Service bulletin. High Voltage Repairs on Hybrid Vehicles
9214022024-04-15. Service bulletin. Washer Level Sensor
9114062024-04-15. Service bulletin. RNS 850 Radio Software Update
9113222024-04-15. Service bulletin. RNS 850 Radio Software Update