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Service bulletin 08-093-20

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 id10183073
Published by NHTSA2020-11-30
Manufacturer's number08-093-20
Manufacturer's date2020-10-09
NHTSA componentELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

NHTSA's summary

Flash: Adaptive Cruise Control (ACC) Updates This bulletin involves reprogramming the ACC module with the latest software available. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC)U148A-86 - Implausible Data Received From Driver Assistance System Module (DASM) Signal Invalid. The customer may describe the following: Instrument Panel Cluster (IPC) disable icon switches on warnings for the Forward Collision Warning (FCW) informing the driver ?Heads-up Warning Array (HWA) Unavailable Service Required?.The system starts working again automatically after a few seconds and/or up to 5 minutes.

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

Driver assistance, Electrical system, Adaptive cruise control, Instrument cluster, Software

Trouble codes named

U148A

Vehicles listed
ALFA ROMEO GIULIA2020
ALFA ROMEO STELVIO2020

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
S2408000056 REV.A2024-12-21. Service bulletin. Forward Collision Warning (FCW), or Adaptive Cruise Control (ACC) Warning Lamps Illuminate on The Instrument Panel Cluster (IPC)
S24080000562024-06-11. Service bulletin. Forward Collision Warning (FCW), or Adaptive Cruise Control (ACC) Warning Lamps Illuminate on The Instrument Panel Cluster (IPC)
08243232024-01-16. Service bulletin. USB Software Update to 131.010.002 for RAN Radio The customer may describe the following: ? Wrong temperature information is displayed on the performance page. This bulletin involves inspecting the software level to see if the radio needs one or two USB flash drive(s) to update the radio software level to 131.010.002. CAUTION! The repair procedure must be followed step by step. If the radio is not updated with the correct software level at the correct time the radio can be damaged or the updates won?t complete.
01001212022-09-26. Service bulletin. Oil Change Monitor Displaying Prematurely This bulletin involves resetting the oil life monitor and if necessary changing the engine oil and filter. The customer may experience the oil change light illuminated on the dash shortly after taking delivery of the vehicle within 6,437 Km (4,000 miles).
S21080002802021-12-13. Service bulletin. FCW Light Is On. DTC Revealed Misaligned DASM. Alignment Pins Not Properly Seated
S20080000102020-08-24. Service bulletin. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S20080000172020-05-26. Service bulletin. ESS Unavailable In Areas 5,250 Feet (1600 Meters) Above Sea Level