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B1815 2017 GMC Sierra Code - Driver Seat Recline Forward Switch Circuit

Quick Answer

The B1815 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the driver seat recline forward switch circuit. Common causes include Faulty recline forward switch, Wiring issues such as shorts or open circuits, Malfunctioning control module. 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
B1815 2017 GMC Sierra indicates Driver Seat Recline Forward Switch Circuit.
Common causes
Common causes include Faulty recline forward switch, Wiring issues such as shorts or open circuits, Malfunctioning control module.
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 13, 2024
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Code B1815 2017 GMC Sierra Description

The B1815 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the driver seat recline forward switch circuit. This code indicates that there is a malfunction in the circuit that controls the driver's seat recline forward switch. The driver's seat in modern vehicles is equipped with various electronic controls to adjust the seat position for comfort and safety. The recline forward switch allows the driver to adjust the angle of the seatback to move it forward.

OBDII Code B1815 2017 GMC Sierra - Driver Seat Recline Forward Switch Circuit
B1815 2017 GMC Sierra Code - Driver Seat Recline Forward Switch Circuit

Common Causes of B1815 2017 GMC Sierra

  1. Faulty recline forward switch.
  2. Wiring issues such as shorts or open circuits.
  3. Malfunctioning control module.
  4. Loose or corroded electrical connections.
  5. Physical damage to the seat adjustment mechanism.

Symptoms of B1815 2017 GMC Sierra

  1. Inability to adjust the driver's seat angle forward.
  2. The driver's seat may be stuck in a certain position.
  3. Malfunctioning or unresponsive recline forward switch.
  4. Warning light on the dashboard related to the seat controls.
  5. Unusual noises coming from the seat when attempting to adjust it.

How to Fix B1815 2017 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and testing the components involved.
  2. Inspect the recline forward switch for any signs of damage or malfunction and replace it if necessary.
  3. Check the wiring harness for any visible damage or loose connections, repairing or replacing as needed.
  4. Test the control module to ensure it is functioning correctly, replacing it if it is found to be faulty.
  5. Clear the DTC from the vehicle's computer memory and test the seat adjustment functionality to confirm that the issue has been resolved.

Cost to Fix B1815 2017 GMC Sierra

The cost of repairing a B1815 code related to the driver seat recline forward switch circuit in a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $150 to $400 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a few quotes from different shops to ensure you're getting a fair price.

What does this mean?

Tech Notes for B1815 2017 GMC Sierra









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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 B1815 2017 GMC Sierra Code

1. What does OBDII code B1815 for a 2017 GMC Sierra mean?

The B1815 code specifically relates to the Driver Seat Recline Forward Switch Circuit malfunction in a 2017 GMC Sierra.

2. What are the common symptoms of OBDII code B1815 in a 2017 GMC Sierra?

Common symptoms may include the driver seat recline switch not functioning properly, the seat reclining forward unintentionally, or the seat recline feature being completely inoperative.

3. What are the possible causes of OBDII code B1815 in a 2017 GMC Sierra?

Potential causes of the B1815 code can include a faulty driver seat recline forward switch, damaged wiring or connectors in the circuit, or a problem with the seat control module.

4. How can I diagnose the issue related to OBDII code B1815 in my 2017 GMC Sierra?

To diagnose the issue, you can start by inspecting the wiring and connectors related to the driver seat recline forward switch, checking the switch for proper functionality, and using a diagnostic scanner to read the specific error codes.

5. Can I repair OBDII code B1815 in my 2017 GMC Sierra myself?

Depending on your skill level and access to tools, you may be able to repair the issue yourself by replacing the faulty switch, repairing damaged wiring, or addressing any other identified issues in the circuit.

6. Is it safe to continue driving my 2017 GMC Sierra with OBDII code B1815 present?

It is generally not recommended to drive the vehicle with unresolved OBDII codes, as they can indicate potential safety or performance issues. It's best to address the problem promptly to prevent any further complications.

7. Will resetting the OBDII code B1815 in my 2017 GMC Sierra make it go away permanently?

Simply resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear. It's crucial to diagnose and repair the root cause of the problem to prevent recurring issues.

8. How much can I expect to pay for repairing OBDII code B1815 in a 2017 GMC Sierra at a professional mechanic shop?

The cost of repairing the B1815 code can vary depending on the specific cause of the issue, labor rates, and any required parts replacements. It's recommended to get estimates from different shops to compare prices.

9. Are there any recalls or technical service bulletins related to OBDII code B1815 for a 2017 GMC Sierra?

It's advisable to check with GMC or a certified dealership to inquire about any recalls or technical service bulletins related to the B1815 code in your specific vehicle model and year.

10. Can a malfunctioning driver seat recline switch impact other electrical systems in my 2017 GMC Sierra?

While the B1815 code specifically relates to the driver seat recline forward switch circuit, a malfunctioning switch or related components could potentially affect other electrical systems in the vehicle. It's important to address the issue promptly to prevent any further electrical issues.

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