# 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.

- Type: Service bulletin
- NHTSA id: 10157638
- Published by NHTSA: 2019\-04\-08
- Manufacturer's number: Update Bulletin
- Manufacturer's date: 2012\-10\-10
- NHTSA component: EQUIPMENT; 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10157638-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10157638-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2011 to 2012 VOLKSWAGEN TOUAREG

## Recalls for the same vehicles and component

- [11V195000](/recalls/nhtsa/11V195000.md), 2011-03-29: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [VOS\-26\-42](/bulletins/11035772.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. 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\-15](/bulletins/11030829.md), 2026-04-06, Service bulletin: ELECTRICAL SYSTEM. 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\-01](/bulletins/11028490.md), 2026-02-06, Service bulletin: ELECTRICAL SYSTEM. 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:
- [V271901201189426](/bulletins/11007398.md), 2024-09-06, Service bulletin: ELECTRICAL SYSTEM. Battery testing
- [VWC0911](/bulletins/10253439.md), 2024-04-22, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Volkswagen Carefree Maintenance Program ? Gasoline Engines \(Except Routan\) \- REVISED
- [931401](/bulletins/10253210.md), 2024-04-15, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT; UNKNOWN OR OTHER. High\-voltage repairs on Hybrid and Electric vehicles
- [931302](/bulletins/10253209.md), 2024-04-15, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT; UNKNOWN OR OTHER. High Voltage Repairs on Hybrid Vehicles
- [921402](/bulletins/10253207.md), 2024-04-15, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Washer Level Sensor
- [911406](/bulletins/10253194.md), 2024-04-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. RNS 850 Radio Software Update
- [911322](/bulletins/10253187.md), 2024-04-15, Service bulletin: UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. RNS 850 Radio Software Update

JSON: [/v1/bulletins/10157638](/v1/bulletins/10157638)

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