AutoCodes – GMC – C0280 2018 GMC Sierra

C0280 2018 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 2018 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 190

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 Jul 05, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C0280 2018 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 2018 GMC Sierra - Stability System Active Too Long - AutoCodes.com — C0280 2018 GMC Sierra Code - Stability System Active Too Long

What does this mean?

What are the Possible Causes of the DTC C0280 2018 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 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 C0280 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 C0280 2018 GMC Sierra code?

Need more information on how to fix the C0280 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0280 2018 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 C0280 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code C0280 in a 2018 GMC Sierra?

- The common symptoms include the stability system warning light being illuminated on the dashboard and a message indicating "Stability System Active Too Long."

2. What does the OBDII code C0280 in a 2018 GMC Sierra indicate?

- This code indicates that the vehicle's stability control system has been active for an extended period, possibly due to a fault in the system.

3. What are the possible causes of the Stability System Active Too Long code in a 2018 GMC Sierra?

- Possible causes include a malfunctioning wheel speed sensor, issues with the steering angle sensor, a faulty ABS module, or problems with the stability control system software.

4. How can I diagnose the OBDII code C0280 in my 2018 GMC Sierra?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific code, checking for other related codes, and conducting a thorough inspection of the stability control system components.

5. Is it safe to drive my 2018 GMC Sierra with the Stability System Active Too Long code?

- It is generally not recommended to drive the vehicle with this code active as it may affect the stability and control of the vehicle, especially in adverse driving conditions.

6. Can I reset the OBDII code C0280 in my 2018 GMC Sierra myself?

- While you can attempt to clear the code using an OBDII scanner, it is crucial to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair the Stability System Active Too Long code in a 2018 GMC Sierra?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing sensors, the ABS module, or recalibrating the stability control system, with costs ranging from a few hundred to over a thousand dollars.

8. Can extreme weather conditions trigger the OBDII code C0280 in a 2018 GMC Sierra?

- Yes, extreme weather conditions such as heavy rain, snow, or ice can sometimes trigger the stability system to remain active longer than usual, potentially causing the code to be set.

9. Will the Stability System Active Too Long code affect the overall performance of my 2018 GMC Sierra?

- Yes, the code can affect the vehicle's stability and handling, potentially compromising overall performance and safety until the issue is resolved.

10. How can I prevent the OBDII code C0280 from recurring in my 2018 GMC Sierra?

- Regular maintenance, including checking and replacing worn-out stability control system components, keeping sensors clean, and addressing any warning signs promptly, can help prevent the code from recurring.