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B1755 2016 GMC Sierra Code - Driver Seat Assembly Forward Switch Circuit

Quick Answer

The B1755 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically refers to an issue with the driver seat assembly forward switch circuit. Common causes include Faulty driver seat forward switch, Damaged wiring or connectors in the seat adjustment circuit, Loose connection in the 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
B1755 2016 GMC Sierra indicates Driver Seat Assembly Forward Switch Circuit.
Common causes
Common causes include Faulty driver seat forward switch, Damaged wiring or connectors in the seat adjustment circuit, Loose connection in the 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 18, 2024
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Code B1755 2016 GMC Sierra Description

The B1755 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically refers to an issue with the driver seat assembly forward switch circuit. This code indicates that there is a malfunction in the circuit that controls the forward movement of the driver's seat. The driver seat assembly forward switch is responsible for adjusting the position of the seat to allow the driver to find a comfortable driving position.

OBDII Code B1755 2016 GMC Sierra - Driver Seat Assembly Forward Switch Circuit
B1755 2016 GMC Sierra Code - Driver Seat Assembly Forward Switch Circuit

Common Causes of B1755 2016 GMC Sierra

  1. Faulty driver seat forward switch
  2. Damaged wiring or connectors in the seat adjustment circuit
  3. Loose connection in the seat control module
  4. Malfunctioning seat adjustment motor
  5. Corrosion or water damage in the seat assembly components

Symptoms of B1755 2016 GMC Sierra

  1. Inability to adjust the driver's seat forward
  2. Seat moves forward intermittently or erratically
  3. Unresponsive forward switch on the driver seat control panel
  4. Strange noises coming from the seat when attempting to move it forward
  5. Seat gets stuck in one position and cannot be adjusted

How to Fix B1755 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue by using a diagnostic scanner to read the DTC and pinpoint the problem area.
  2. Inspect the driver seat forward switch for any visible damage or signs of wear. Replace the switch if necessary.
  3. Check the wiring and connectors in the seat adjustment circuit for any breaks, corrosion, or loose connections. Repair or replace damaged components.
  4. Test the seat control module to ensure it is functioning properly. Replace the module if it is found to be faulty.
  5. If the seat adjustment motor is the culprit, replace it with a new one to restore proper functionality to the driver's seat.

Cost to Fix B1755 2016 GMC Sierra

The typical repair costs for addressing a B1755 DTC related to the driver seat assembly forward switch circuit in a 2016 GMC Sierra 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 issue could range from $150 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

What does this mean?

Tech Notes for B1755 2016 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 B1755 2016 GMC Sierra Code

1. What does the OBDII code B1755 mean on a 2016 GMC Sierra?

B1755 indicates a problem with the Driver Seat Assembly Forward Switch Circuit, which controls the forward movement of the driver’s seat.

2. What are common symptoms of the B1755 code in a 2016 GMC Sierra?

Symptoms may include the driver’s seat not moving forward, intermittent seat movement, or the switch being unresponsive.

3. What causes the B1755 code to appear on a 2016 GMC Sierra?

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

4. Can I still drive my 2016 GMC Sierra with the B1755 code?

Yes, the vehicle can still be driven, but the driver’s seat may not adjust properly, which could affect driving comfort or safety.

5. How do I diagnose the B1755 code on a 2016 GMC Sierra?

Start by inspecting the seat forward switch, wiring, and connectors for damage or corrosion. Use a multimeter to test the continuity of the circuit and verify proper function of the switch.

6. How do I fix the B1755 code on a 2016 GMC Sierra?

Repairs may include replacing the seat forward switch, repairing or replacing damaged wiring, or addressing issues with the seat motor.

7. Can a blown fuse cause the B1755 code in a 2016 GMC Sierra?

Yes, a blown fuse connected to the seat adjustment system could interrupt power to the circuit and trigger the code.

8. How much does it cost to fix the B1755 code on a 2016 GMC Sierra?

The cost will vary depending on the exact issue, but replacing a seat switch typically costs $50-$200, while addressing wiring issues may cost $100-$300.

9. Can I reset the B1755 code on my 2016 GMC Sierra without repairs?

You can clear the code with an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.

10. Is the B1755 code a common problem in the 2016 GMC Sierra?

While not extremely common, seat adjustment circuit issues can occur due to wear and tear or electrical faults over time.

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