Engine-CodesGMC – B1745 2014 GMC Sierra

B1745 2014 GMC Sierra Code - Driver Seat Rear Up Switch Circuit

Quick Answer

The B1745 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the driver seat rear up switch circuit. Common causes include Faulty driver seat switch, Damaged wiring or connectors in the circuit, Defective 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 2014 GMC Sierra indicates Driver Seat Rear Up Switch Circuit.
Common causes
Common causes include Faulty driver seat switch, Damaged wiring or connectors in the circuit, Defective 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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B1745 2014 GMC Sierra Description

The B1745 diagnostic trouble code (DTC) for a 2014 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 while driving.

OBDII Code B1745 2014 GMC Sierra - Driver Seat Rear Up Switch Circuit
B1745 2014 GMC Sierra Code - Driver Seat Rear Up Switch Circuit

Common Causes of B1745 2014 GMC Sierra

  1. Faulty driver seat switch
  2. Damaged wiring or connectors in the circuit
  3. Defective seat control module
  4. Loose connections in the circuit
  5. Corrosion or moisture damage in the circuit components

Symptoms of B1745 2014 GMC Sierra

  1. Inability to adjust the driver's seat rearward
  2. Intermittent or erratic movement of the driver's seat
  3. Unresponsive seat adjustment controls
  4. Warning light illuminated on the dashboard related to seat controls

How to Fix B1745 2014 GMC Sierra

  1. Begin by conducting a thorough visual inspection of the wiring, connectors, and switch for any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the circuit and check for any open or short circuits.
  3. Test the driver seat switch functionality by checking for proper voltage and signal output.
  4. If the switch is faulty, replace it with a new one and ensure proper connection.
  5. If the issue persists, inspect the seat control module and replace if necessary.

Cost to Fix B1745 2014 GMC Sierra

The cost of repairing the driver seat rear up switch circuit can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for this type of problem can range from $150 to $400, including parts and labor. However, it's important to note that diagnosis time and labor rates can vary between auto repair shops. It's recommended to obtain quotes from local shops to get a more accurate estimate based on your location and vehicle specifics.

Tech Notes for B1745 2014 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 2014 GMC Sierra Code

1. What does the OBDII code B1745 mean on a 2014 GMC Sierra?

The B1745 code indicates an issue with the Driver Seat Rear Up Switch Circuit, which controls the rear upward movement of the driver’s seat.

2. What are the common symptoms of code B1745 on a 2014 GMC Sierra?

Symptoms may include the driver seat not moving up or down properly, unresponsiveness of the seat adjustment switch, or unusual noises when attempting to adjust the seat.

3. What causes the B1745 code to appear?

Possible causes include a faulty seat adjustment switch, damaged wiring or connectors in the circuit, a malfunctioning seat motor, or a blown fuse.

4. How do I diagnose the B1745 code on my GMC Sierra?

Start by inspecting the seat adjustment switch, wiring, and connectors for damage or corrosion. Use a multimeter to test the circuit for proper voltage and continuity.

5. Can I drive my 2014 GMC Sierra with the B1745 code active?

Yes, you can still drive the vehicle, but the driver's seat may not adjust properly, which could affect comfort or safety depending on the seating position.

6. How do I fix the B1745 code on my 2014 GMC Sierra?

Repairs may include replacing the seat adjustment switch, repairing damaged wiring or connectors, or replacing the seat motor if it’s defective.

7. How much does it cost to repair the B1745 code on a GMC Sierra?

Repair costs vary depending on the issue, but replacing a seat adjustment switch typically costs $100-$300, including parts and labor. Wiring repairs may cost less if minor.

8. Can a blown fuse cause the B1745 code on a 2014 GMC Sierra?

Yes, a blown fuse in the seat adjustment circuit can cause this code by interrupting power to the seat adjustment system.

9. Do I need to recalibrate the seat after fixing the B1745 code?

In most cases, no recalibration is needed, but you should test the seat movement to ensure all functions are restored.

10. Is the B1745 code a common problem in the 2014 GMC Sierra?

It’s not a very common issue, but wear and tear on the seat switch or wiring can lead to this code over time. Regular inspections can help prevent it.

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