U0184 on Alfa Romeo
Lost Communication With Radio
U0184 on Alfa Romeo vehicles indicates lost communication with radio. Au7o has documented this code across 1 Alfa Romeo model — most commonly on Giulia. This network code means a module stopped receiving expected communication messages from the radio/audio module over the vehicle's data bus. When the radio module goes offline or its bus connection fails, this code is logged. On some vehicles the audio module also acts as a network gateway, so its loss can trigger several related communication codes. Symptoms are typically a dead or unresponsive radio/infotainment system; it does not affect drivability.
Common Causes of U0184
- •Loss of power or ground to the radio/audio module
- •Blown radio fuse
- •Wiring or connector fault on the communication bus
- •Faulty radio/audio control module
- •Corroded or loose module connector
- •Network/bus wiring short affecting multiple modules
U0184 on Alfa Romeo by Model
Alfa Romeo Giulia(1 issue)
- Infotainment System Random Reboots2017-2026
The Uconnect infotainment system reboots randomly during driving, losing navigation, audio, and phone connectivity. The system can take 30-60 seconds to restart, leaving the driver without backup camera or climate controls.
Looking for U0184 on a different make?
View U0184 across all makes →Frequently Asked Questions
What does U0184 mean on Alfa Romeo?▼
U0184 stands for "Lost Communication With Radio." This network code means a module stopped receiving expected communication messages from the radio/audio module over the vehicle's data bus. When the radio module goes offline or its bus connection fails, this code is logged. On some vehicles the audio module also acts as a network gateway, so its loss can trigger several related communication codes. Symptoms are typically a dead or unresponsive radio/infotainment system; it does not affect drivability. On Alfa Romeo specifically, this code is documented across 1 model.
What causes U0184 on Alfa Romeo vehicles?▼
Common causes on Alfa Romeo: Loss of power or ground to the radio/audio module, Blown radio fuse, Wiring or connector fault on the communication bus, Faulty radio/audio control module, Corroded or loose module connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0184 on a Alfa Romeo?▼
Repair costs vary widely depending on the root cause and specific Alfa Romeo model.
Which Alfa Romeo models have U0184 documented?▼
Au7o has documented U0184 on 1 Alfa Romeo model: Giulia.