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Service bulletin TT 27 18 07

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 id10149858
Published by NHTSA2018-12-03
Manufacturer's numberTT 27 18 07
Manufacturer's date2018-08-24
NHTSA componentFORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

NHTSA's summary

Direction to complete update of J428 upon replacement.

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

Driver assistance, Adaptive cruise control

Vehicles listed
VOLKSWAGEN ATLAS2018
VOLKSWAGEN GOLF2015, 2016, 2017, 2018
VOLKSWAGEN GOLF R2015 (the catalog's model; the bulletin names a series or trim of it)
VOLKSWAGEN GOLF R2016, 2017, 2018
VOLKSWAGEN GOLF SPORTWAGEN2015, 2016, 2017, 2018
VOLKSWAGEN JETTA2015, 2016, 2017, 2018, 2019
VOLKSWAGEN PASSAT2015, 2016, 2017, 2018
VOLKSWAGEN TIGUAN2018

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

Other bulletins for the same vehicles and component
WLA-22-152022-12-06. Service bulletin. ACC Calibration Process
TT 27-17-012019-12-06. Service bulletin. Update to include latest model years.
TT 27 18 062018-12-03. Service bulletin. Additional diagnosis when grill is removed
TT 2717012017-12-14. Service bulletin. Example of devices, modifications or alterations that can impede Adaptive Cruise Control Radar Sensor function.