AutoCodes – GMC – C0280 GMC

C0280 GMC 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 GMC 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 1,197

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

What does this mean?

What are the Possible Causes of the DTC C0280 GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

Get the C0280 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

C0280 2014 GMC Sierra — Stability System Active Too Long
C0280 2015 GMC Sierra — Stability System Active Too Long
C0280 2016 GMC Sierra — Stability System Active Too Long
C0280 2017 GMC Sierra — Stability System Active Too Long
C0280 2018 GMC Sierra — Stability System Active Too Long

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 GMC Code

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

- Common symptoms of OBDII code C0280, "Stability System Active Too Long," in a GMC vehicle may include the stability control warning light illuminating on the dashboard, reduced vehicle stability during driving, and potential difficulty in controlling the vehicle.

2. What does the OBDII code C0280 "Stability System Active Too Long" indicate in a GMC vehicle?

- The OBDII code C0280 indicates that the stability control system in the GMC vehicle has been continuously active for an extended period, possibly due to a malfunction or issue with the system.

3. What are some possible causes of OBDII code C0280 in a GMC vehicle?

- Possible causes of OBDII code C0280, "Stability System Active Too Long," in a GMC vehicle may include faulty wheel speed sensors, malfunctioning steering angle sensors, issues with the brake system, or a malfunction within the stability control module.

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

- Diagnosing the OBDII code C0280 in a GMC vehicle typically involves using a diagnostic scanner to retrieve the specific fault codes, inspecting the stability control system components for any visible damage or issues, and conducting tests on sensors and modules related to the stability system.

5. Are there any DIY repair tips for addressing OBDII code C0280 in a GMC vehicle?

- DIY repair tips for addressing OBDII code C0280 may include visually inspecting the wheel speed sensors and connectors for any damage, checking the brake system for proper operation, ensuring the steering angle sensor is functioning correctly, and clearing the fault codes to see if the issue reoccurs.

6. Can driving with OBDII code C0280 "Stability System Active Too Long" pose any risks in a GMC vehicle?

- Driving with OBDII code C0280, "Stability System Active Too Long," in a GMC vehicle can pose risks such as reduced stability control and potentially compromised driving safety, especially in challenging road conditions or emergency maneuvers.

7. Is it recommended to continue driving a GMC vehicle with the OBDII code C0280 unresolved?

- It is generally not recommended to continue driving a GMC vehicle with the OBDII code C0280 unresolved, as it may lead to further stability control issues and compromise the safety of the vehicle and its occupants.

8. How much does it typically cost to repair OBDII code C0280 in a GMC vehicle at a professional repair shop?

- The cost of repairing OBDII code C0280 in a GMC vehicle at a professional repair shop can vary depending on the specific underlying issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can resetting the OBDII code C0280 in a GMC vehicle temporarily solve the issue?

- Resetting the OBDII code C0280 in a GMC vehicle may temporarily clear the fault code, but if the underlying issue causing the stability system malfunction is not addressed, the code is likely to reappear, and the problem may persist.

10. How long does it typically take to repair OBDII code C0280 "Stability System Active Too Long" in a GMC vehicle?

- The time required to repair OBDII code C0280 in a GMC vehicle can vary depending on the complexity of the issue and the availability of parts, but it may take a few hours to a full day for a professional mechanic to diagnose and address the problem effectively.