AutoCodes – GMC – B1755 2015 GMC Sierra

B1755 2015 GMC Sierra Code - Driver Seat Assembly Forward Switch Circuit

Quick Answer

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection. 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 2015 GMC Sierra indicates Driver Seat Assembly Forward Switch Circuit.
Common causes: Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection.
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.

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Code Popularity 141

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 24, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B1755 2015 GMC Sierra Description

The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. When the power seat or lumbar switches are pressed, the appropriate signal circuit from the Seat Memory Control Module is pulled low through the switch contacts indicating the power seat command. The Seat Memory Control Module then commands the driver seat or lumbar to move in response to the switch signals. The Diagnostic Trouble Code (DTC) will be set when there is a short to ground on a switch signal circuit.

OBDII Code B1755 2015 GMC Sierra - Driver Seat Assembly Forward Switch Circuit - AutoCodes.com — B1755 2015 GMC Sierra Code - Driver Seat Assembly Forward Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B1755 2015 GMC Sierra?

Faulty Driver Seat Adjuster Switch
Driver Seat Adjuster Switch harness is open or shorted
Driver Seat Adjuster Switch circuit poor electrical connection
Faulty Seat Memory Control Module

How to Fix the DTC B1755 2015 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1755 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 2015 GMC Sierra Code

What does the OBDII code B1755 mean for a 2015 GMC Sierra?

The code B1755 indicates a problem with the driver seat assembly forward switch circuit, which controls the forward movement of the driverâ€™s seat.

What are the common symptoms of code B1755 on a 2015 GMC Sierra?

Symptoms include the driverâ€™s seat not moving forward, intermittent seat adjustment issues, or complete failure of the seat adjustment function.

What causes code B1755 on a 2015 GMC Sierra?

Common causes include a faulty forward switch, damaged wiring or connectors in the seat circuit, or issues with the seat control module.

How can I diagnose code B1755 on my GMC Sierra?

Inspect the wiring and connectors for damage or corrosion, test the forward switch for functionality, and check the seat control module for proper operation.

Can a blown fuse cause code B1755 on a GMC Sierra?

Yes, a blown fuse related to the seat adjustment circuit can cause this code and prevent the forward switch from functioning.

How do I fix code B1755 on a 2015 GMC Sierra?

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

Is it safe to drive with code B1755 on my GMC Sierra?

Yes, itâ€™s generally safe, but the seat adjustment issue can impact comfort and proper seating posture, which may affect driving ergonomics.

How much does it cost to repair code B1755 on a GMC Sierra?

Repair costs vary but typically range from $100 to $400, depending on whether the issue is with the switch, wiring, or control module.

Can I clear code B1755 without fixing the issue?

Clearing the code without addressing the underlying problem will only temporarily remove the code, and itâ€™s likely to return.

Does code B1755 require professional assistance to fix?

While some DIYers may be able to fix wiring or replace the switch, complex issues with the seat control module might require professional diagnosis and repair.