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Engine-Codes – GMC – B1745 2017 GMC Sierra

B1745 2017 GMC Sierra Code - Driver Seat Rear Up Switch Circuit

Quick Answer

The B1745 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the driver seat rear up switch circuit. Common causes include Faulty driver seat rear up switch, Damaged or frayed wiring in the seat adjustment circuit, Malfunctioning seat 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
B1745 2017 GMC Sierra indicates Driver Seat Rear Up Switch Circuit.
Common causes
Common causes include Faulty driver seat rear up switch, Damaged or frayed wiring in the seat adjustment circuit, Malfunctioning seat 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 14, 2024
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Code B1745 2017 GMC Sierra Description

The B1745 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the driver seat rear up switch circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the rearward movement of the driver's seat. The driver seat rear up switch circuit is part of the seat control system, allowing the driver to adjust the position of the seat for comfort and driving convenience.

OBDII Code B1745 2017 GMC Sierra - Driver Seat Rear Up Switch Circuit
B1745 2017 GMC Sierra Code - Driver Seat Rear Up Switch Circuit

Common Causes of B1745 2017 GMC Sierra

  1. Faulty driver seat rear up switch.
  2. Damaged or frayed wiring in the seat adjustment circuit.
  3. Malfunctioning seat control module.
  4. Loose or corroded electrical connections.
  5. Wear and tear on the seat adjustment components.

Symptoms of B1745 2017 GMC Sierra

  1. Inability to adjust the driver's seat rearward.
  2. Unresponsive or erratic movement of the driver's seat.
  3. Illumination of the seat adjustment control warning light on the dashboard.
  4. Audible clicking or buzzing noises when attempting to adjust the seat.
  5. Intermittent functioning of the seat adjustment controls.

How to Fix B1745 2017 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the DTC.
  2. Inspect the driver seat rear up switch for any signs of damage or malfunction and replace if necessary.
  3. Check the wiring harness for any visible damage or loose connections, repairing or replacing as needed.
  4. Test the seat control module for proper functionality and replace if it is found to be faulty.
  5. Clear the DTC from the vehicle's memory and test the seat adjustment system to ensure proper operation.

Cost to Fix B1745 2017 GMC Sierra

The typical repair costs for addressing the B1745 DTC on a 2017 GMC Sierra can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new switch or control module, may range from $50 to $200. Labor costs at auto repair shops typically fall between $80 and $150 per hour, with the total repair time varying based on the complexity of the issue. Therefore, the total cost for resolving this code could range from $150 to $500 or more, depending on the extent of the repairs needed. It is recommended to consult with a professional mechanic for a more accurate cost estimate based on your vehicle's specific requirements.

What does this mean?

Tech Notes for B1745 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 B1745 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B1745 in a 2017 GMC Sierra related to the Driver Seat Rear Up Switch Circuit?

The common symptoms include the inability to adjust the driver seat rear upward, faulty or unresponsive seat adjustment controls, and warning lights on the dashboard.

2. What are the possible causes of OBDII code B1745 in a 2017 GMC Sierra?

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

3. How can I diagnose the issue causing OBDII code B1745 in my 2017 GMC Sierra?

Diagnosing the issue involves checking the seat adjustment switch for proper functionality, inspecting the wiring and connectors for any damage or loose connections, and testing the seat control module for faults using a diagnostic tool.

4. Can I repair OBDII code B1745 in my 2017 GMC Sierra on my own?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair this code on your own by troubleshooting the circuit, replacing faulty components, and clearing the code with a diagnostic tool.

5. Is it safe to drive my 2017 GMC Sierra with OBDII code B1745 related to the Driver Seat Rear Up Switch Circuit?

It is generally safe to drive the vehicle with this code, but you may experience inconvenience due to the inability to adjust the driver seat rear upward. However, it is recommended to address the issue promptly to ensure proper functionality of the seat controls.

6. How much does it typically cost to repair OBDII code B1745 in a 2017 GMC Sierra at a dealership or repair shop?

The cost of repairing this code can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

7. Can resetting the OBDII code B1745 in my 2017 GMC Sierra temporarily resolve the issue?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reoccur. It is recommended to diagnose and repair the root cause of the problem.

8. Will OBDII code B1745 cause my 2017 GMC Sierra to fail an emissions test?

This code is related to the driver seat adjustment circuit and is not directly related to emissions. However, it is important to ensure that all diagnostic trouble codes are addressed before an emissions test to avoid potential issues.

9. How long does it take to repair OBDII code B1745 in a 2017 GMC Sierra?

The repair time can vary depending on the specific cause of the issue, but it may take a few hours to a day to diagnose, repair, and clear the code using the appropriate tools and expertise.

10. Can extreme temperatures or moisture affect the occurrence of OBDII code B1745 in a 2017 GMC Sierra?

Extreme temperatures or moisture can potentially impact the electrical components of the seat adjustment circuit, leading to issues like loose connections or corrosion, which may trigger the B1745 code.

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