WenmarOpen by Wenmar Pro

Service bulletin K31539545

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 id10138790
Published by NHTSA2018-05-29
Manufacturer's numberK31539545
Manufacturer's date2018-04-20
NHTSA componentFUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

Volvo Chassis - Diagnostic Trouble Code ( DTC ) P20CF, Diagnosis And Repair - US14+OBD15, Commonly Model Year 2016

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, Exhaust and emissions, Fuel system

Trouble codes named

P20CF

Vehicles listed
VOLVO VAH2016
VOLVO VHD2016
VOLVO VNL2016
VOLVO VNM2016
VOLVO VNX2016

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