AutoCodes – Chevrolet – B3031 2018 Chevrolet Silverado

B3031 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 414

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Security System Controller In Learn Mode - AutoCodes.com — B3031 2018 Chevrolet Silverado Code - Security System Controller In Learn Mode

What does this mean?

What are the Possible Causes of the DTC B3031 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

Need more information on how to fix the B3031 2018 Chevrolet Silverado 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 B3031 2018 Chevrolet Silverado Code

1. What does OBDII code B3031 mean on a 2018 Chevrolet Silverado?

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

2. What are the common symptoms of OBDII code B3031 on a 2018 Chevrolet Silverado?

- Common symptoms of code B3031 include issues with the vehicle's security system, such as difficulty starting the engine or the security light staying on.

3. What are the possible causes of OBDII code B3031 on a 2018 Chevrolet Silverado?

- The code B3031 can be triggered by a malfunction in the Security System Controller, a faulty key fob, or issues with the vehicle's immobilizer system.

4. How can I diagnose OBDII code B3031 on my 2018 Chevrolet Silverado?

- To diagnose code B3031, you may need to use a diagnostic scanner to read the code and check for any related security system malfunctions.

5. How do I repair OBDII code B3031 on a 2018 Chevrolet Silverado?

- Repairing code B3031 may involve resetting the Security System Controller, reprogramming key fobs, or addressing any underlying issues with the security system components.

6. Can I drive my 2018 Chevrolet Silverado with OBDII code B3031?

- It is recommended to address the underlying issue causing code B3031 before driving your vehicle to prevent any potential security system malfunctions.

7. Is OBDII code B3031 a serious problem on a 2018 Chevrolet Silverado?

- While code B3031 may not directly affect the drivability of the vehicle, it is still important to address the issue to ensure the proper functioning of the security system.

8. How much does it cost to fix OBDII code B3031 on a 2018 Chevrolet Silverado?

- The cost of fixing code B3031 can vary depending on the underlying cause and the necessary repairs, so it is advisable to consult a professional for an accurate estimate.

9. Can I reset OBDII code B3031 on my 2018 Chevrolet Silverado without professional help?

- Resetting code B3031 may require specialized tools and knowledge, so it is recommended to seek assistance from a qualified mechanic or dealership.

10. How can I prevent OBDII code B3031 from appearing on my 2018 Chevrolet Silverado in the future?

- To prevent code B3031 from reoccurring, make sure to properly maintain your vehicle's security system components, including key fobs and the Security System Controller.