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Service bulletin SP18-35H

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 id10213316
Published by NHTSA2022-06-06
Manufacturer's numberSP18-35H
Manufacturer's date2022-05-17
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING

NHTSA's summary

P20EE (diagnostic troubleshooting code) SOLUTION - NOX CONVERSION EFFICIENCY

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, Equipment and accessories

Trouble codes named

P20EE

Vehicles listed
PREVOST H3-412017 to 2019
PREVOST H3-452017 to 2019
PREVOST X32017 to 2019
PREVOST X3-452017 to 2019
VOLVO BUS 97002017 to 2018

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