The Lemon Index

Check engine light · Engine codes

U0184: Lost Communication With Radio.

Network · GenericU0184
Drive on, get it checked
What it means

The other computers in the car stopped hearing from the radio.

How serious

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

Where a shop starts

Wiring or connector fault on the data network. Then: power or ground problem at the radio; failed radio.

Owners named U0184 in 5 complaints to the U.S. government, most often on the GMC Acadia.

Cars owners report it on

Complaints that name U0184, by model. Raw counts, not a failure rate: popular models get more complaints.

The details

What U0184 means

The other computers in the car stopped hearing from the radio. Features that depend on it can stop working, and several warning lights often come on together.

Can I drive with U0184?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

40% of the owner complaints that name U0184 also say the car warning lights and electrical faults. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of U0184
  • Wiring or connector fault on the data network
  • Power or ground problem at the radio
  • Failed radio
  • Weak battery

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Warning lights and electrical faults: 40% of complaints

Share of complaints naming the code whose text also mentions each problem.

Related codes

U0170 U0164 U0159 U0155 U0151 U0146 U0141 U0140

Quick answers

What does U0184 mean?

Lost Communication With Radio. The other computers in the car stopped hearing from the radio. Features that depend on it can stop working, and several warning lights often come on together.

Can I drive with U0184?

Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.

What causes U0184?

Wiring or connector fault on the data network; Power or ground problem at the radio; Failed radio; Weak battery.

Counts: NHTSA owner complaints whose text names U0184. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

Spot a mistake or have an idea? Tell us

How can we make Lemon Index better?