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B252E 2018 GMC Sierra Code - Child Security Lock Switch Indicator Circuit

Quick Answer

The B252E diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the Child Security Lock Switch Indicator Circuit. Common causes include Faulty child security lock switch, Wiring issues in the child security lock indicator circuit, Malfunctioning body control module (BCM). 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
B252E 2018 GMC Sierra indicates Child Security Lock Switch Indicator Circuit.
Common causes
Common causes include Faulty child security lock switch, Wiring issues in the child security lock indicator circuit, Malfunctioning body control module (BCM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B252E 2018 GMC Sierra Description

The B252E diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the Child Security Lock Switch Indicator Circuit. This code indicates that there is a malfunction in the circuit that controls the child security lock switch indicator. The child security lock switch is a safety feature in the vehicle that allows the driver to prevent the rear doors from being opened from the inside, ensuring the safety of children or passengers in the back seats.

OBDII Code B252E 2018 GMC Sierra - Child Security Lock Switch Indicator Circuit
B252E 2018 GMC Sierra Code - Child Security Lock Switch Indicator Circuit

Common Causes of B252E 2018 GMC Sierra

  1. Faulty child security lock switch.
  2. Wiring issues in the child security lock indicator circuit.
  3. Malfunctioning body control module (BCM).
  4. Loose or corroded electrical connections.
  5. Water damage to the child security lock switch indicator circuit.

Symptoms of B252E 2018 GMC Sierra

  1. Child security lock indicator not lighting up on the dashboard.
  2. Inconsistent behavior of the child security lock switch.
  3. Inability to engage or disengage the child security lock.
  4. Dashboard warning light related to child security lock system.

How to Fix B252E 2018 GMC Sierra

  1. Begin by diagnosing the root cause of the issue using a scan tool to retrieve the specific DTC (B252E).
  2. Inspect the child security lock switch and indicator circuit for any visible damage or corrosion. Replace any faulty components.
  3. Check the wiring harness for any breaks or shorts. Repair or replace any damaged wiring.
  4. Test the body control module (BCM) to ensure it is functioning correctly. Replace if necessary.
  5. Clear the DTC from the vehicle's memory and test the child security lock system to ensure proper operation.

Cost to Fix B252E 2018 GMC Sierra

The cost of repairing the Child Security Lock Switch Indicator Circuit issue can vary depending on the specific cause of the problem. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost for this issue can be around $150 to $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

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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 B252E 2018 GMC Sierra Code

1. What does OBDII code B252E for a 2018 GMC Sierra indicate?

The code B252E on a 2018 GMC Sierra relates to the Child Security Lock Switch Indicator Circuit.

2. What are the common symptoms of OBDII code B252E in a 2018 GMC Sierra?

Common symptoms of code B252E in a 2018 GMC Sierra may include the child security lock switch indicator not functioning properly or staying illuminated.

3. What are the possible causes of OBDII code B252E in a 2018 GMC Sierra?

Potential causes of code B252E in a 2018 GMC Sierra include a faulty child security lock switch, wiring issues in the indicator circuit, or a malfunctioning control module.

4. How can I diagnose the Child Security Lock Switch Indicator Circuit issue in a 2018 GMC Sierra?

To diagnose the Child Security Lock Switch Indicator Circuit problem in a 2018 GMC Sierra, you can start by checking the child security lock switch for proper operation and inspecting the wiring for any visible damage.

5. Can I repair OBDII code B252E in a 2018 GMC Sierra myself?

Depending on the cause of the code B252E in your 2018 GMC Sierra, you may be able to repair it yourself if you have the necessary tools and knowledge. However, complex electrical issues may require professional diagnosis and repair.

6. Is it safe to continue driving with OBDII code B252E in a 2018 GMC Sierra?

It is generally not recommended to continue driving with unresolved OBDII codes like B252E in a 2018 GMC Sierra, as it can indicate underlying issues that may affect the vehicle's safety and performance.

7. How much does it typically cost to repair OBDII code B252E in a 2018 GMC Sierra?

The cost of repairing OBDII code B252E in a 2018 GMC Sierra can vary depending on the specific cause of the issue, labor rates in your area, and whether you choose to fix it yourself or take it to a professional mechanic.

8. Can a faulty child security lock switch cause OBDII code B252E in a 2018 GMC Sierra?

Yes, a faulty child security lock switch is one of the potential causes of OBDII code B252E in a 2018 GMC Sierra, as it can impact the proper functioning of the indicator circuit.

9. How do I reset the OBDII code B252E in a 2018 GMC Sierra after making repairs?

Once you have addressed the underlying issue causing OBDII code B252E in a 2018 GMC Sierra, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

10. Are there any recalls or technical service bulletins related to OBDII code B252E in a 2018 GMC Sierra?

To determine if there are any recalls or technical service bulletins related to OBDII code B252E in a 2018 GMC Sierra, you can check with a GMC dealership or search online databases for relevant information.

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