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Service bulletin 08-107-20

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 id10187708
Published by NHTSA2021-03-01
Manufacturer's number08-107-20
Manufacturer's date2020-12-16
NHTSA componentEQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Flash: Drive Style Control Module (DSCM) Updates This bulletin involves checking if the vehicle dynamic (DNA) selector is operable and possibly reprogramming the DSCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set in the DSCM:U1700-87 - BCM (Body Control Module) Node-Missing Message. The following DTC has been set in the Body Control Module (BCM):U1A20-87 - DSCM (Drive Style Control Module) - Missing Message. The customer may also comment on the following:The vehicle dynamic (DNA) selector is inoperable.

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

Electrical system, Equipment and accessories, Lighting

Trouble codes named

U1700, U1A20

Vehicles listed
ALFA ROMEO GIULIA2019

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