AutoCodes – GMC – C0280 2014 GMC Sierra

C0280 2014 GMC Sierra Code - Stability System Active Too Long

Quick Answer

The solenoid valves are integral parts of the brake pressure modulator. Common causes include Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV), Brake Pressure Modulator Valve harness is open or shorted, Brake Pressure Modulator Valve 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: C0280 2014 GMC Sierra indicates Stability System Active Too Long.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV), Brake Pressure Modulator Valve harness is open or shorted, Brake Pressure Modulator Valve 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.

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Code Popularity 175

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 05, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0280 2014 GMC Sierra Description

The solenoid valves are integral parts of the brake pressure modulator. The brake pressure modulator contains an isolation solenoid valve and a dump solenoid valve for each wheel. A traction/stability control supply solenoid valve and an isolation solenoid valve for each brake circuit. The solenoid valves are not engaged during normal system operation. When the ABS, the traction control, or the stability control operation is required the Electronic Brake Control Module (EBCM) turns the required solenoid ON. The Diagnostic Trouble Code (DTC) will be set due to the extended operation of the ABS, the traction control, or the stability control.

OBDII Code C0280 2014 GMC Sierra - Stability System Active Too Long - AutoCodes.com — C0280 2014 GMC Sierra Code - Stability System Active Too Long

What does this mean?

What are the Possible Causes of the DTC C0280 2014 GMC Sierra?

Faulty Electronic Brake Control Module (EBCM) with Brake Pressure Modulator Valve (BPMV)
Brake Pressure Modulator Valve harness is open or shorted
Brake Pressure Modulator Valve circuit poor electrical connection

How to Fix the DTC C0280 2014 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 C0280 2014 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 C0280 2014 GMC Sierra code?

Need more information on how to fix the C0280 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C0280 2014 GMC Sierra Code

1. What does the OBDII code C0280 mean on a 2014 GMC Sierra?

C0280 indicates that the Stability Control System has been active for an extended period, suggesting a potential issue with the system's ability to stabilize the vehicle.

2. What are the common symptoms of the C0280 code?

Symptoms include the stability control or traction control warning light illuminating, reduced stability system performance, and occasional loss of traction assistance.

3. What causes the C0280 code to appear?

This code can result from issues like a malfunctioning wheel speed sensor, faulty yaw rate sensor, worn brake components, or a problem with the electronic brake control module (EBCM).

4. Can driving habits trigger the C0280 code?

Yes, aggressive driving, especially on slippery surfaces, can overwork the stability system, leading to this code if the system is active for too long.

5. How is the C0280 code diagnosed?

A mechanic will use a diagnostic scanner to confirm the code, inspect wheel speed sensors, check for brake system issues, and verify the functionality of the EBCM.

6. Is the C0280 code serious?

While not immediately dangerous, this code indicates potential stability or traction issues that could affect vehicle handling in certain driving conditions.

7. Can I fix the C0280 code myself?

If the issue is due to dirty or misaligned wheel speed sensors, you may be able to clean or adjust them. However, more complex issues like a faulty EBCM require professional repair.

8. How much does it cost to repair the C0280 code?

Repair costs vary depending on the root cause, ranging from $50 for cleaning sensors to over $1,000 if the EBCM needs replacement.

9. Can a software update resolve the C0280 code?

In some cases, a software update for the EBCM or related control systems may resolve the issue, but this depends on the specific fault and vehicle history.

10. How can I prevent the C0280 code from reoccurring?

Regular maintenance of the brake and stability systems, avoiding aggressive driving, and addressing warning lights promptly can help prevent this code from returning.