AutoCodesGMC – U184E 2017 GMC Sierra

U184E 2017 GMC Sierra Code - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus

Quick Answer

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Common causes include Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U184E 2017 GMC Sierra indicates Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus.
Common causes
Common causes include Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 186
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 24, 2023
💬 Need more help? Ask Coddy for instant answers — it's free!

Code U184E 2017 GMC Sierra Description

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the Data Link Connector (DLC), the scan tool can be used to monitor each device for diagnostic purposes and to check for Diagnostic Trouble Codes (DTC). When the vehicle is ON, each device communicating on the serial data circuit sends a state of health message to ensure that the device is operating properly. When a device stops communicating on the serial data circuit, for example, if the device loses power or ground, the state of health message it normally sends on the serial data circuit disappears. Other devices on the serial data circuit, which expect to receive that state of health message, detect its absence; those devices in turn set a DTC associated with the loss of state of health of the non-communicating device. A loss of serial data communications DTC does not represent a failure of the devices that contain the stored DTC.
OBDII Code U184E 2017 GMC Sierra - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus - AutoCodes.com
U184E 2017 GMC Sierra Code - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus

What are the Possible Causes of the DTC U184E 2017 GMC Sierra?

  • Faulty Inflatable Restraint Sensing and Diagnostic Module
  • Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted
  • Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection

How to Fix the DTC U184E 2017 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U184E 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U184E 2017 GMC Sierra code?

Need more information on how to fix the U184E 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U184E 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U184E 2017 GMC Sierra Code

What does the OBDII code U184E mean on a 2017 GMC Sierra?

The code U184E indicates a loss of communication with the Inflatable Restraint Sensing and Diagnostic Module (SDM) on the low-speed CAN bus.

What are the symptoms of the U184E code in a 2017 GMC Sierra?

Common symptoms include the airbag warning light illuminating, issues with airbag deployment functionality, or a possible lack of communication with other modules.

What causes the U184E code to appear?

Possible causes include a faulty Inflatable Restraint Sensing and Diagnostic Module, damaged or corroded wiring in the low-speed CAN bus, poor electrical connections, or a software issue.

Is the U184E code a serious problem?

Yes, it can be serious because it may affect the airbag system, which is critical for occupant safety in the event of a collision.

How can I diagnose the U184E code on my 2017 GMC Sierra?

Diagnosis involves using a scan tool to check for related codes, inspecting the wiring and connectors for damage or corrosion, and testing the communication lines on the low-speed CAN bus.

Can a U184E code be caused by a dead or weak battery?

Yes, a weak or dead battery can sometimes cause communication issues on the CAN bus, potentially triggering the U184E code.

What should I inspect if I get the U184E code?

Inspect the wiring and connectors for the Inflatable Restraint Sensing and Diagnostic Module, as well as the low-speed CAN bus network for damage, corrosion, or loose connections.

How do I fix the U184E code on a 2017 GMC Sierra?

Repairs may involve replacing or repairing damaged wiring, reconnecting loose connectors, updating module software, or replacing the Inflatable Restraint Sensing and Diagnostic Module if it’s faulty.

Can I still drive my 2017 GMC Sierra with the U184E code active?

While the truck may still run, it is not recommended to drive with this code active since it may impact the functionality of the airbag system.

Will clearing the U184E code with a scan tool fix the problem?

Clearing the code may temporarily reset the system, but if the underlying issue isn’t resolved, the code will likely return.

Discuss the causes and fixes for U184E 2017 GMC Sierra OBDII Code

Code U184E 2017 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play