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Service bulletin K54101221

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 id10145226
Published by NHTSA2018-10-09
Manufacturer's numberK54101221
Manufacturer's date2018-09-25
NHTSA componentPOWER TRAIN

NHTSA's summary

** Tech Tip ** TT - 001 - 2015 - How And When To Diagnose A P0402 Code

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

Trouble codes named

P0402

Vehicles listed
VOLVO VAH
VOLVO VHD
VOLVO VNL
VOLVO VNM
VOLVO VNX2013 to 2019

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