AutoCodes – GMC – B1735 2015 GMC Sierra

B1735 2015 GMC Sierra Code - Driver Seat Front Up 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: B1735 2015 GMC Sierra indicates Driver Seat Front Up 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 154

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 23, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B1735 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 B1735 2015 GMC Sierra - Driver Seat Front Up Switch Circuit - AutoCodes.com — B1735 2015 GMC Sierra Code - Driver Seat Front Up Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B1735 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 B1735 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 B1735 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 B1735 2015 GMC Sierra Code

1. What does the OBDII code B1735 mean on a 2015 GMC Sierra?

The B1735 code indicates a malfunction in the Driver Seat Front Up Switch Circuit, which controls the forward height adjustment of the driverâ€™s seat.

2. What are common symptoms of the B1735 code in a 2015 GMC Sierra?

Symptoms include the driverâ€™s seat not adjusting upward, no response when pressing the seat adjustment switch, or intermittent operation.

3. What causes the B1735 code to trigger?

This code is often caused by a faulty seat adjustment switch, damaged wiring or connectors in the circuit, or a malfunctioning seat motor.

4. Can I still drive my 2015 GMC Sierra with the B1735 code active?

Yes, the vehicle is still drivable, but you may experience limited or no functionality in the driverâ€™s seat height adjustment.

5. How do I diagnose the cause of the B1735 code?

Inspect the wiring and connectors for damage, test the seat adjustment switch for proper operation, and check the seat motor for functionality using a multimeter.

6. How do I fix the B1735 code on my 2015 GMC Sierra?

Repairs may include replacing the seat adjustment switch, repairing or replacing damaged wiring, or replacing a faulty seat motor.

7. Can the B1735 code be cleared without repairs?

Clearing the code without addressing the root cause may temporarily turn off the warning, but the code will likely return if the issue persists.

8. How much will it cost to repair the B1735 code issue?

Costs vary based on the exact cause. Replacing a seat adjustment switch could cost $50-$150 for parts, while more extensive repairs to wiring or the seat motor may be higher.

9. Is the B1735 code covered under warranty for a 2015 GMC Sierra?

It depends on your vehicleâ€™s warranty terms. Check if the seat adjustment system is covered under your basic or extended warranty.

10. Can I fix the B1735 code on my own?

If you have basic automotive knowledge, you can inspect and repair wiring or replace the seat adjustment switch. For more complex issues, professional assistance may be required.