WenmarOpen by Wenmar Pro

Service bulletin K21052070

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 id10142818
Published by NHTSA2018-07-16
Manufacturer's numberK21052070
Manufacturer's date2018-06-29
NHTSA componentENGINE

NHTSA's summary

Intermittent Occurrences Of Very Brief Loss Of Power, Engine Stumble Or Hiccup Lasting Much Less Than A Second, Most Frequently Between 1500 And 1700 RPM, No Diagnostic Trouble Codes ( DTC ) Generated - All Common Rail Fuel System Chassis - US17+OBD16 And Newer Emissions, Commonly Model Year 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

Engine

Vehicles listed
VOLVO VAH2018
VOLVO VHD2018 to 2019
VOLVO VN2018 to 2019
VOLVO VNL2018 to 2019
VOLVO VNM2018 to 2019
VOLVO VNR2019
VOLVO VNX2018

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