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Service bulletin TT 20-12-02

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 id10120150
Published by NHTSA2017-10-21
Manufacturer's numberTT 20-12-02
Manufacturer's date2014-06-27
NHTSA componentFUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

NHTSA's summary

Tech Tips (V6 3.6L-Evap Tank Leak Test): It is recommended to perform the EVAP tank leak test on V6 equipped Touareg through Control Module OBD. The test can be selected from the basic settings selection under the ECM address 01. This document informs on the procedure conduct the test

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, Fuel system

Vehicles listed
VOLKSWAGEN TOUAREG2010, 2011, 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
20171232017-03-08. Fuel System
17V1510002017-03-08. FUEL SYSTEM, GASOLINE
15V0190002015-01-20. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

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
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
TT9614022024-04-08. Service bulletin. Vehicles equipped with Immobilizer 4 (Download) ? Adapting Keys after Vehicle Lock Set Replacement
TT9111142024-04-01. Service bulletin. RNS 315 Navigation ? Bluetooth Module Location