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Engine-Codes – GMC – B1740 2017 GMC Sierra

B1740 2017 GMC Sierra Code - Driver Seat Front Down Switch Circuit

Quick Answer

The B1740 code for the 2017 GMC Sierra relates to the driver seat front down switch circuit. Common causes include Faulty front down switch, Wiring issues in the circuit, Blown fuse related to the driver seat circuit. 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
B1740 2017 GMC Sierra indicates Driver Seat Front Down Switch Circuit.
Common causes
Common causes include Faulty front down switch, Wiring issues in the circuit, Blown fuse related to the driver seat circuit.
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 10, 2024
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Code B1740 2017 GMC Sierra Description

The B1740 code for the 2017 GMC Sierra relates to the driver seat front down switch circuit. This means that there is a malfunction or issue with the circuit that controls the front down movement of the driver's seat. The driver seat in modern vehicles is equipped with various electronic components to adjust its position for the driver's comfort. The front down switch allows the driver to lower the front part of the seat to their preferred level.

OBDII Code B1740 2017 GMC Sierra - Driver Seat Front Down Switch Circuit
B1740 2017 GMC Sierra Code - Driver Seat Front Down Switch Circuit

Common Causes of B1740 2017 GMC Sierra

  1. Faulty front down switch
  2. Wiring issues in the circuit
  3. Blown fuse related to the driver seat circuit
  4. Issues with the seat control module
  5. Electrical problems in the vehicle's system

Symptoms of B1740 2017 GMC Sierra

  1. Inability to adjust the front part of the driver's seat
  2. Front down switch not responding when pressed
  3. Check engine light illuminated on the dashboard
  4. Strange noises when attempting to adjust the seat
  5. Uneven or uncomfortable seating position while driving

How to Fix B1740 2017 GMC Sierra

  1. Begin by diagnosing the exact cause of the issue using a diagnostic scanner to read the fault codes and pinpoint the problem.
  2. Inspect the front down switch and wiring for any visible signs of damage or wear. Replace any damaged components.
  3. Check and replace any blown fuses related to the driver seat circuit.
  4. Test the seat control module for any faults and replace if necessary.
  5. Clear the fault codes and test the driver seat front down switch to ensure it is functioning properly.

Cost to Fix B1740 2017 GMC Sierra

The typical repair costs for addressing the B1740 code on a 2017 GMC Sierra can range from $100 to $300, depending on the exact cause of the issue and the cost of parts and labor. This estimate does not include diagnostic fees, which can vary depending on the shop's rates. It is advisable to consult with a trusted auto repair shop to get a more accurate estimate based on your specific vehicle and location. Remember that rates may vary, and it's essential to choose a reputable shop for quality repairs.

What does this mean?

Tech Notes for B1740 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 B1740 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B1740 in a 2017 GMC Sierra related to the driver seat front down switch circuit?

The common symptoms include an inoperative front down switch for adjusting the driver's seat position.

2. What are some possible causes of OBDII code B1740 in a 2017 GMC Sierra?

Possible causes of this code may include a faulty seat switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.

3. How can I diagnose the issue causing OBDII code B1740 in my 2017 GMC Sierra?

To diagnose the problem, you can start by checking the wiring and connectors associated with the driver seat front down switch, testing the switch for functionality, and using a scan tool to retrieve additional diagnostic trouble codes.

4. Can I repair OBDII code B1740 in my 2017 GMC Sierra on my own?

Depending on your experience and comfort level with automotive repairs, you may be able to repair this issue on your own by replacing a faulty switch, repairing damaged wiring, or addressing connector issues. However, professional assistance may be required for more complex repairs.

5. Are there any tips for troubleshooting OBDII code B1740 in a 2017 GMC Sierra?

Some tips for troubleshooting this code include checking for loose or damaged connections, inspecting the switch for any visible damage, and ensuring that all related components are properly connected.

6. Is it safe to continue driving my 2017 GMC Sierra with OBDII code B1740 related to the driver seat front down switch circuit?

It is generally not recommended to continue driving the vehicle with this code present, as it can affect the driver's ability to adjust the seat position for optimal comfort and safety.

7. Can OBDII code B1740 in a 2017 GMC Sierra be cleared/reset without fixing the underlying issue?

While you can clear the code using a scan tool, it is important to address the root cause of the problem to prevent the code from reoccurring and ensure the proper functioning of the driver seat front down switch.

8. How much does it typically cost to repair OBDII code B1740 in a 2017 GMC Sierra at a dealership or auto repair shop?

The cost of repairing this code can vary depending on the specific issue causing it, the labor rates of the service provider, and the cost of any replacement parts needed. It is recommended to obtain a quote from a trusted mechanic or dealership for an accurate estimate.

9. What steps should I take if I encounter OBDII code B1740 in my 2017 GMC Sierra after attempting a repair?

If the code persists after attempting a repair, you may need to recheck the components involved, ensure proper installation of any new parts, and consider seeking professional assistance for further diagnosis and repair.

10. Can weather or environmental factors contribute to OBDII code B1740 in a 2017 GMC Sierra?

While it is less common, extreme weather conditions or environmental factors such as moisture intrusion can potentially contribute to issues with the driver seat front down switch circuit, leading to the triggering of OBDII code B1740.

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