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Service bulletin TT 011704

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 id10157373
Published by NHTSA2019-04-08
Manufacturer's numberTT 011704
Manufacturer's date2017-06-02
NHTSA componentPARKING BRAKE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

Description and clarification of hill hold function to prevent unneccesary repairs.

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

Brakes, Transmission and driveline, Automatic transmission, Parking brake, Transmission control module

Vehicles listed
VOLKSWAGEN TOUAREG2011, 2012, 2013, 2014, 2015, 2016

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

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TT9111172023-06-13. Service bulletin. Replacement RNS 510 radio/navigation units may be shipped in transportation safeguard mode and therefore will have no sound output. In order to switch the unit out of this mode, hold down the forward seek button, the back seek button, and the music button at the same time until the unit shuts down. Once the unit is powered back ?ON? the safeguard mode will be deactivated.