U0184 on Hyundai
Lost Communication With Radio
U0184 on Hyundai vehicles indicates lost communication with radio. Au7o has documented this code across 2 Hyundai models — most commonly on Ioniq 5, Palisade. 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 Hyundai by Model
Hyundai Ioniq 5(1 issue)
- Infotainment System Crashes / Dual Screen Black Out2022-2025
The dual 12.3-inch screen infotainment system in the Ioniq 5 is prone to freezing, going black, and rebooting while driving. The issue affects navigation, climate controls (which are screen-only), and the digital instrument cluster. Loss of the driver display while driving is a safety concern. Multiple OTA updates have been released to address stability.
Hyundai Palisade(1 issue)
- Infotainment Screen Blackout & BlueLink Telematics Failures2020-2025
Palisade owners report the central infotainment/navigation screen going black and unresponsive, taking out GPS, Bluetooth audio, and the backup camera at once, sometimes requiring a costly head-unit replacement. Separately, BlueLink remote start and app functions stop working, often after software updates, forcing use of the physical key. These are recurring software/head-unit and telematics faults documented across owner forums rather than a single recall.
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View U0184 across all makes →Frequently Asked Questions
What does U0184 mean on Hyundai?▼
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 Hyundai specifically, this code is documented across 2 models.
What causes U0184 on Hyundai vehicles?▼
Common causes on Hyundai: 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 Hyundai?▼
Repair costs vary widely depending on the root cause and specific Hyundai model.
Which Hyundai models have U0184 documented?▼
Au7o has documented U0184 on 2 Hyundai models: Ioniq 5, Palisade.