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Service bulletin TJ33723 1 0-2018

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 id10164136
Published by NHTSA2019-08-26
Manufacturer's numberTJ33723 1 0-2018
Manufacturer's date2018-05-15
NHTSA componentSUSPENSION:MULTIPLE AXLE; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); ENGINE

NHTSA's summary

This is a Technical Journal: ERAD Clutch DTCs, Signal Compare Failure DTCs and/or Watchdog Revised IEM software has been released. Perform an upgrade of the software according to TJ 31543. Test the car and check if any of the above DTCs return. If any DTC returns repair the car according VIDA and/or TJ33557 as necessary.

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, Suspension, Transmission and driveline, Transfer case

Vehicles listed
VOLVO S902018
VOLVO XC602018
VOLVO XC902017, 2018
VOLVO XC90H2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
TJ31247201604212016-12-22. Service bulletin. THIS IS A TECHNICAL JOURNAL : IF THE “HYBRID SYSTEM FAILURE” MESSAGE IS SHOWN IN DIM ,WITH DTC IEM-P0A1B47 OR IEM-P0A1B62, FOLLOW PROCEDURE UNDER SERVICE.