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Service bulletin U029D00

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 id10175327
Published by NHTSA2020-05-21
Manufacturer's numberU029D00
Manufacturer's date2020-04-01
NHTSA componentENGINE

NHTSA's summary

Repair instructions to address fault codes U029D00 Lost Communication With NOx Sensor "A"

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

Trouble codes named

U029D

Vehicles listed
PREVOST H3-412013 to 2019
PREVOST H3-452013 to 2020
PREVOST H3-45 VIP2013 to 2020
PREVOST X3-452013 to 2020
PREVOST X3-45 COMMUTER2018 to 2019
PREVOST X3-45 VIP2013 to 2019

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