Which cars report code U0184?

Code U0184 is named in 5 US owner complaints. Models: 4, model years 2012–2022. GMC Acadia, Chevrolet Malibu, Chevrolet Trailblazer, Dodge Avenger.

U0184 code: Lost Communication With Radio

Q: What does code U0184 mean?

Lost Communication With Radio. How to read U0184: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 184 identify the specific fault.

Code U0184 is named in 5 US owner complaints. Models: 4, model years 2012–2022.

What the code means

Lost Communication With Radio. Generic meaning per SAE J2012 (the same for all makes).

How to read U0184: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 184 identify the specific fault.

Codes for body, door, climate, instrument cluster and infotainment modules. On a damaged car they often point to wiring or a connector damaged in the impact zone, or to water inside.

Key figures

Complaints with this code: 5
Models: 4
Model years: 2012–2022

Which models and years

Models whose owners name this code (4). Years link to the model year problems page.

Model	Years	Complaints
GMC Acadia	2021, 2022	2
Chevrolet Malibu	2013	1
Chevrolet Trailblazer	2022	1
Dodge Avenger	2012	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Electrical system 2
Forward collision avoidance 2
Air bags 1
Seats 1
Visibility 1

Complaints by model year

2012 1
2013 1
2021 1
2022 2

What to do if an auction car has this code

Check wiring and connectors in the impact zone and signs of water inside.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

The infotainment/radio module failed entirely due to an OTA software update (Codes: U18B4, U0184, B1325). The vehicle and component are fully available for inspection upon request. How was safety at risk? The federally mandated backup camera is now too faint/dim to read, destroying rearview visibility.
GMC Acadia 2022 · 2026-09
U0184 Lost Communication with Radio 6. U0232 Lost Communication with Side Object Detection Control Module - Left Dealer said that these are just notification and may not be able to find anything. It advised to bring vehicle back if this message pops up again.
Chevrolet Trailblazer 2022 · 2022-10
Codes B101D-00(electronic control unit hardware) and U0184-00(lost communication with radio).
Chevrolet Malibu 2013 · 2019-10

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.