AutoCodes – GMC – B3031 2016 GMC Sierra

B3031 2016 GMC Sierra Code - Security System Controller In Learn Mode

Quick Answer

When learning a coded key, the Body Control Module (BCM) is placed in learn mode. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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: B3031 2016 GMC Sierra indicates Security System Controller In Learn Mode.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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 207

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 Jun 02, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3031 2016 GMC Sierra Description

When learning a coded key, the Body Control Module (BCM) is placed in learn mode. Diagnostic Trouble Code (DTC) B3031 will be set automatically as an indicator that the system is in learning mode and not as a fault indicator. On some model-year vehicles, the instructions for adding keys includes the direction to always use two learned keys. This DTC will be set if that direction is not followed. If only one learned key is available, then Replacing Keys must be performed. Once the coded key is learned, learn mode will be exited and the DTC cleared. If the BCM does not exit learn mode, DTC B3031 will remain current and indicate a fault. The instrument cluster security indicator will illuminate, and the driver information center will display a message.

OBDII Code B3031 2016 GMC Sierra - Security System Controller In Learn Mode - AutoCodes.com — B3031 2016 GMC Sierra Code - Security System Controller In Learn Mode

What does this mean?

What are the Possible Causes of the DTC B3031 2016 GMC Sierra?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC B3031 2016 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 B3031 2016 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 B3031 2016 GMC Sierra 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 B3031 2016 GMC Sierra Code

1. What does OBDII code B3031 for a 2016 GMC Sierra mean?

The code B3031 indicates that the Security System Controller is in Learn Mode.

2. What are some common symptoms of the Security System Controller being in Learn Mode?

Common symptoms may include issues with starting the vehicle, a security light illuminated on the dashboard, and possible immobilization of the vehicle.

3. What can cause the Security System Controller to enter Learn Mode in a 2016 GMC Sierra?

The Security System Controller may enter Learn Mode due to a faulty key fob, a battery drain issue, or a malfunction within the security system itself.

4. How can I diagnose the Security System Controller Learn Mode issue in my 2016 GMC Sierra?

Diagnosing the issue may involve using a professional OBDII scanner to retrieve the specific B3031 code, checking the key fob functionality, and inspecting the security system components for any visible damage.

5. Can I repair the Security System Controller Learn Mode issue on my own?

Depending on the cause, some simple repairs like replacing the key fob battery or resetting the security system may resolve the Learn Mode issue. However, more complex issues may require professional assistance.

6. Is it safe to drive my 2016 GMC Sierra with the Security System Controller in Learn Mode?

It is not recommended to drive the vehicle with the Security System Controller in Learn Mode, as it may lead to unexpected security system activation or immobilization while driving.

7. How much does it typically cost to repair the Security System Controller Learn Mode issue on a 2016 GMC Sierra?

The cost of repairing the Learn Mode issue can vary depending on the exact cause and needed repairs. It is advisable to consult with a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast reset the Security System Controller Learn Mode without specialized tools?

In some cases, simply disconnecting the vehicle's battery for a few minutes may reset the Security System Controller and exit Learn Mode. However, using a professional OBDII scanner is the most effective way to diagnose and reset the issue.

9. Will resetting the Security System Controller Learn Mode erase any stored data or settings in my 2016 GMC Sierra?

Resetting the Security System Controller should not erase any vital data or settings in the vehicle. However, it is always recommended to consult the vehicle's manual or a professional mechanic for specific guidance.

10. How can I prevent the Security System Controller from entering Learn Mode in the future?

To prevent the Security System Controller from entering Learn Mode, ensure your key fob is in good condition, avoid leaving the vehicle's interior lights on for extended periods, and address any battery drain issues promptly. Regular maintenance checks on the security system can also help prevent future occurrences.