WenmarOpen by Wenmar Pro

Service bulletin 0820423

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 id10243273
Published by NHTSA2023-10-02
Manufacturer's number0820423
Manufacturer's date2023-08-25
NHTSA componentEQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

NHTSA's summary

Anti-Theft Alarm Inoperative The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? B1073-71 -Volumetric Sensor Fault-Actuator Stuck. ? B1073-96 - Volumetric Sensor Fault-Component Internal Failure. Customers may also experience: ? The theft-alarm goes off and it is not possible to reactivate it. ? Message is displayed in the cluster stating the theft alarm is disabled. This bulletin involves replacing the front dome lamp.

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

Equipment and accessories

Trouble codes named

B1073

Vehicles listed
ALFA ROMEO GIULIA2021 to 2022

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