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Service bulletin K28021025

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 id10142795
Published by NHTSA2018-07-16
Manufacturer's numberK28021025
Manufacturer's date2018-06-14
NHTSA componentPOWER TRAIN

NHTSA's summary

Volvo Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, I-Shift ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% - US17+OBD16 (GHG17) And Newer Emissions, Common Model Years 2018 And Newer

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

Transmission and driveline

Vehicles listed
VOLVO VAH2018
VOLVO VHD2018 to 2019
VOLVO VN2018 to 2019
VOLVO VNL2018 to 2019
VOLVO VNR2019
VOLVO VNX2018

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