Engine-CodesGMC – U0028 2017 GMC Sierra

U0028 2017 GMC Sierra Code - Media Oriented Systems Transport Bus

Quick Answer

The U0028 code for a 2017 GMC Sierra refers to an issue with the Media Oriented Systems Transport (MOST) Bus. Common causes include Damaged optical fiber cables, Faulty MOST Bus control module, Faulty components connected to the MOST Bus. 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
U0028 2017 GMC Sierra indicates Media Oriented Systems Transport Bus.
Common causes
Common causes include Damaged optical fiber cables, Faulty MOST Bus control module, Faulty components connected to the MOST Bus.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code U0028 2017 GMC Sierra Description

The U0028 code for a 2017 GMC Sierra refers to an issue with the Media Oriented Systems Transport (MOST) Bus. The MOST Bus is a high-speed multimedia network that connects various components in the vehicle, such as the infotainment system, navigation system, and other multimedia devices. When this code is triggered, it indicates a communication problem within the MOST Bus system, which can affect the functionality of these multimedia systems.

OBDII Code U0028 2017 GMC Sierra - Media Oriented Systems Transport Bus
U0028 2017 GMC Sierra Code - Media Oriented Systems Transport Bus

Common Causes of U0028 2017 GMC Sierra

  1. Damaged optical fiber cables
  2. Faulty MOST Bus control module
  3. Faulty components connected to the MOST Bus
  4. Software glitches in the multimedia systems
  5. Electrical issues affecting the MOST Bus communication

Symptoms of U0028 2017 GMC Sierra

  1. Infotainment system freezing or not responding
  2. Navigation system errors or inaccuracies
  3. Loss of audio or video output
  4. Difficulty accessing multimedia features
  5. Diagnostic system unable to communicate with certain modules

How to Fix U0028 2017 GMC Sierra

  1. Inspect and test the optical fiber cables for damage
  2. Check and diagnose the MOST Bus control module for faults
  3. Test components connected to the MOST Bus for proper functionality
  4. Update software in the multimedia systems to address any glitches
  5. Repair or replace any damaged components affecting the MOST Bus communication

Cost to Fix U0028 2017 GMC Sierra

The cost of repairing the U0028 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, the repair costs for addressing MOST Bus communication problems can range from $200 to $800, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

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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 U0028 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code U0028 in a 2017 GMC Sierra related to the Media Oriented Systems Transport Bus?

The common symptoms include issues with the vehicle's infotainment system, loss of communication with multimedia components, and possibly a malfunctioning audio system.

2. What are the possible causes of OBDII code U0028 in a 2017 GMC Sierra?

The code U0028 in a 2017 GMC Sierra typically indicates a communication error on the Media Oriented Systems Transport Bus, which can be caused by a faulty multimedia module, wiring issues, or a software glitch.

3. How can I diagnose the OBDII code U0028 in a 2017 GMC Sierra?

Diagnosing the code U0028 involves checking the connections and wiring related to the Media Oriented Systems Transport Bus, testing the multimedia module, and using a diagnostic scanner to retrieve specific fault codes.

4. What are some repair tips for resolving the OBDII code U0028 in a 2017 GMC Sierra?

Repair tips may include checking and repairing any damaged wiring, resetting the multimedia module, updating software if available, or replacing the multimedia module if necessary.

5. Can I drive my 2017 GMC Sierra with the OBDII code U0028 present?

While the vehicle may still be operable with the code U0028 present, it is recommended to address the issue promptly to prevent further damage to the multimedia system and ensure proper communication within the vehicle's network.

6. Does resetting the OBDII code U0028 in a 2017 GMC Sierra fix the underlying issue?

Resetting the code may temporarily clear the fault code, but if the underlying issue causing the U0028 code is not addressed, it is likely to reappear. Proper diagnosis and repair are necessary for a long-term solution.

7. Is the repair for OBDII code U0028 in a 2017 GMC Sierra covered under warranty?

Depending on the vehicle's warranty status and the specific cause of the U0028 code, the repair may be covered under warranty. It is recommended to check with your GMC dealership or warranty provider for more information.

8. Can a DIY enthusiast fix the OBDII code U0028 issue in a 2017 GMC Sierra?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing the U0028 code related to the Media Oriented Systems Transport Bus may require specialized tools and expertise, so professional assistance is often recommended.

9. How much does it cost to repair the OBDII code U0028 in a 2017 GMC Sierra?

The cost of repairing the U0028 code can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It is advisable to obtain quotes from reputable automotive technicians or dealerships for an accurate estimate.

10. How can I prevent the OBDII code U0028 from reoccurring in my 2017 GMC Sierra?

Regular maintenance, timely software updates, and addressing any wiring or connection issues promptly can help prevent the recurrence of the U0028 code related to the Media Oriented Systems Transport Bus in a 2017 GMC Sierra.

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