AutoCodes – GMC – B124F 2018 GMC Sierra

B124F 2018 GMC Sierra Code - Universal Serial Bus Programming

Quick Answer

Certain devices in the entertainment system must be programmed with specific software and other information to operate correctly. Common causes include Program the device that set the DTC, Faulty Instrument Cluster (If DTC is set in Instrument Cluster). 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: B124F 2018 GMC Sierra indicates Universal Serial Bus Programming.
Common causes: Common causes include Program the device that set the DTC, Faulty Instrument Cluster (If DTC is set in Instrument Cluster).
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.

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Code Popularity 183

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B124F 2018 GMC Sierra Description

Certain devices in the entertainment system must be programmed with specific software and other information to operate correctly. This Diagnostic Trouble Code (DTC) is the result of an unsuccessful Universal Serial Bus (USB) programming event for the device. The symptom byte information is for engineering reference only. No external circuit diagnosis is involved

OBDII Code B124F 2018 GMC Sierra - Universal Serial Bus Programming - AutoCodes.com — B124F 2018 GMC Sierra Code - Universal Serial Bus Programming

What does this mean?

What are the Possible Causes of the DTC B124F 2018 GMC Sierra?

Program the device that set the DTC
Faulty Instrument Cluster (If DTC is set in Instrument Cluster)

How to Fix the DTC B124F 2018 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 B124F 2018 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 B124F 2018 GMC Sierra code?

Need more information on how to fix the B124F 2018 GMC Sierra code? Get Access to Factory Service Manuals

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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 B124F 2018 GMC Sierra Code

1. What does the OBDII code B124F mean on a 2018 GMC Sierra?

The B124F code indicates an issue related to the Universal Serial Bus (USB) Programming, typically involving a fault in the USB system or its configuration.

2. What are the common symptoms of the B124F code on a 2018 GMC Sierra?

Symptoms may include USB ports not functioning, inability to play media via USB, or failure to recognize connected devices.

3. What causes the B124F code to appear on a 2018 GMC Sierra?

Common causes include a malfunctioning USB port, a faulty USB cable, outdated software, or a problem with the infotainment system.

4. How do I fix the B124F code on my 2018 GMC Sierra?

Start by inspecting the USB ports and cables for damage, ensure devices are compatible, and update the vehicleâ€™s infotainment system software if necessary.

5. Can a loose connection cause the B124F code on a 2018 GMC Sierra?

Yes, loose or corroded USB connections can trigger this code by disrupting communication between the USB module and the infotainment system.

6. How do I update the infotainment system to resolve the B124F code?

Visit your GMC dealership or check the ownerâ€™s manual for instructions on downloading and installing the latest firmware updates for your vehicle.

7. Is the B124F code a serious issue on a 2018 GMC Sierra?

While not critical to vehicle operation, it can affect USB functionality and user convenience, so addressing it promptly is recommended.

8. Can a faulty USB device trigger the B124F code?

Yes, connecting a malfunctioning or incompatible USB device can cause the system to generate this code.

9. Will clearing the B124F code fix the issue on a 2018 GMC Sierra?

Clearing the code may temporarily remove it, but the underlying issue must be addressed to prevent it from returning.

10. Should I take my 2018 GMC Sierra to a dealership for the B124F code?

If basic troubleshooting doesnâ€™t resolve the issue, itâ€™s best to have a dealership diagnose and repair the problem to ensure proper functionality.