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U184D 2016 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

Quick Answer

The U184D diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that there is a communication issue between the vehicle's radio and the low-speed Controller Area Network (CAN) bus. Common causes include Faulty radio unit, Wiring or connection issues between the radio and the low-speed CAN bus, Defective low-speed CAN bus module. 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
U184D 2016 Chevrolet Silverado indicates Lost Communication with Radio on Low Speed CAN Bus.
Common causes
Common causes include Faulty radio unit, Wiring or connection issues between the radio and the low-speed CAN bus, Defective low-speed CAN bus module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code U184D 2016 Chevrolet Silverado Description

The U184D diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that there is a communication issue between the vehicle's radio and the low-speed Controller Area Network (CAN) bus. The CAN bus is a network that allows various electronic control units (ECUs) in the vehicle to communicate with each other. When the radio loses communication on the low-speed CAN bus, it can lead to a variety of issues within the vehicle's systems.

OBDII Code U184D 2016 Chevrolet Silverado - Lost Communication with Radio on Low Speed CAN Bus
U184D 2016 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

Common Causes of U184D 2016 Chevrolet Silverado

  1. Faulty radio unit
  2. Wiring or connection issues between the radio and the low-speed CAN bus
  3. Defective low-speed CAN bus module
  4. Software glitches or updates that are not compatible with the vehicle's systems
  5. Electrical interference or damage to the CAN bus network

Symptoms of U184D 2016 Chevrolet Silverado

  1. Radio not functioning properly or not working at all
  2. Loss of audio controls on the steering wheel
  3. Bluetooth connectivity issues
  4. Navigation system malfunction
  5. Error messages related to communication failure on the radio display

How to Fix U184D 2016 Chevrolet Silverado

  1. Begin by checking the wiring and connections between the radio and the low-speed CAN bus for any signs of damage or loose connections.
  2. Test the radio unit to determine if it is functioning correctly or if it needs to be replaced.
  3. Inspect the low-speed CAN bus module for any faults or malfunctions that may be causing the communication error.
  4. Update the software on the radio unit and the vehicle's ECUs to ensure compatibility and resolve any software-related issues.
  5. If necessary, replace any faulty components such as the radio unit or the low-speed CAN bus module to restore proper communication.

Cost to Fix U184D 2016 Chevrolet Silverado

The cost of repairing a lost communication issue with the radio on the low-speed CAN bus in a 2016 Chevrolet Silverado can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair for this type of issue can range from $200 to $500, including parts and labor. However, it is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is recommended to check with local shops for a more accurate estimate.

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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 U184D 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U184D in a 2016 Chevrolet Silverado?

- Common symptoms include loss of communication with the radio, malfunctioning infotainment system, and potential issues with other vehicle systems connected to the Low Speed CAN Bus.

2. What can cause the U184D code to appear in a 2016 Chevrolet Silverado?

- The code U184D is typically triggered by a communication breakdown between the vehicle's control modules and the radio, often due to wiring issues, a faulty radio unit, or a malfunction in the Low Speed CAN Bus network.

3. How can I diagnose the U184D code in my 2016 Chevrolet Silverado?

- To diagnose the U184D code, it is recommended to use a diagnostic scanner to retrieve the fault codes and perform a thorough inspection of the wiring connections, radio unit, and Low Speed CAN Bus network for any visible issues.

4. Are there any quick repair tips for resolving the U184D code in a 2016 Chevrolet Silverado?

- Quick repair tips include checking and repairing any damaged wiring connections, ensuring the radio unit is functioning correctly, and resetting the fault codes using a diagnostic scanner.

5. Can I continue driving my 2016 Chevrolet Silverado with the U184D code present?

- While the vehicle may still be operable with the U184D code, it is recommended to address the issue promptly to prevent potential malfunctions in other vehicle systems connected to the Low Speed CAN Bus.

6. How much does it typically cost to repair the U184D code in a 2016 Chevrolet Silverado?

- The cost of repairing the U184D code can vary depending on the underlying cause of the communication issue. Costs may range from a simple wiring repair to potentially replacing the radio unit or control modules.

7. Will resetting the U184D code make it go away permanently?

- Resetting the U184D code without addressing the underlying issue will likely result in the code reappearing once the vehicle's systems attempt to communicate with the radio again. It is important to diagnose and repair the root cause of the problem.

8. Can extreme weather conditions affect the appearance of the U184D code in a 2016 Chevrolet Silverado?

- Extreme weather conditions, especially temperature fluctuations, can potentially affect the electrical connections and components involved in the Low Speed CAN Bus network, leading to intermittent communication issues and the triggering of the U184D code.

9. Is it possible to prevent the U184D code from reoccurring in the future?

- Regular maintenance checks, ensuring proper wiring connections, and promptly addressing any communication issues with the radio or control modules can help prevent the U184D code from reoccurring in the future.

10. Should I attempt to repair the U184D code in my 2016 Chevrolet Silverado myself or seek professional help?

- While simple checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing complex communication issues related to the U184D code may require professional assistance from a certified mechanic or technician.

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