AutoCodesGMC – B2355 2014 GMC Sierra

B2355 2014 GMC Sierra Code - Driver Seat Front Vertical Position Sensor Circuit

Quick Answer

The Seat Memory Control Module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each motor. Common causes include Faulty Driver Seat Front Vertical Motor, Driver Seat Front Vertical Motor harness is open or shorted, Driver Seat Front Vertical Motor 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
B2355 2014 GMC Sierra indicates Driver Seat Front Vertical Position Sensor Circuit.
Common causes
Common causes include Faulty Driver Seat Front Vertical Motor, Driver Seat Front Vertical Motor harness is open or shorted, Driver Seat Front Vertical Motor 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 194
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 17, 2023
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Code B2355 2014 GMC Sierra Description

The Seat Memory Control Module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each motor. The module supplies each sensor with a 12 V reference circuit only when any seat motor is active, and a low side signal circuit. During seat motor operation, the hall effect position sensor provides a determined number of pulse signals for every revolution of the motor shaft. The scan tool displays these pulse signals as counts that range from 0–65,535. The module counts the feedback pulses from each sensor to determine seat position and end-of-travel limits for each of the seat motors. High scan tool count values indicate forward or upward seat positions while low count values indicate rearward or downward seat positions. The Diagnostic Trouble Code (DTC) will be set when there is a fault in the Driver Seat Front Vertical Position Sensor Circuit.
OBDII Code B2355 2014 GMC Sierra - Driver Seat Front Vertical Position Sensor Circuit - AutoCodes.com
B2355 2014 GMC Sierra Code - Driver Seat Front Vertical Position Sensor Circuit

What are the Possible Causes of the DTC B2355 2014 GMC Sierra?

  • Faulty Driver Seat Front Vertical Motor
  • Driver Seat Front Vertical Motor harness is open or shorted
  • Driver Seat Front Vertical Motor circuit poor electrical connection
  • Faulty Driver Seat Memory Control Module

How to Fix the DTC B2355 2014 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2355 2014 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.

Need more information about the B2355 2014 GMC Sierra code?

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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 B2355 2014 GMC Sierra Code

1. What does the OBDII code B2355 mean on a 2014 GMC Sierra?

B2355 indicates an issue with the Driver Seat Front Vertical Position Sensor Circuit, which monitors the position of the driver’s seat in the vertical direction.

2. What are common symptoms of the B2355 code?

Symptoms include the driver’s seat not adjusting up or down, erratic seat movement, or a malfunction indicator light on the dashboard.

3. What causes the B2355 code to appear?

Common causes include a faulty vertical position sensor, damaged wiring or connectors in the seat circuit, or a malfunctioning seat control module.

4. Can I still drive my GMC Sierra with the B2355 code active?

Yes, you can drive the vehicle, but seat adjustability may be compromised, which can affect comfort and proper driving posture.

5. How do I diagnose the B2355 code?

Start by visually inspecting the wiring and connectors under the driver’s seat, checking for damage or loose connections. Use a diagnostic scan tool to confirm the sensor’s output and test the circuit.

6. How do I fix the B2355 code?

Repairs may involve replacing the vertical position sensor, repairing or replacing damaged wiring, or reprogramming the seat control module if necessary.

7. How much does it cost to repair the B2355 code?

Repair costs can range from $100 to $500, depending on whether the issue is with the sensor, wiring, or control module.

8. Can the B2355 code clear itself?

No, the code will not clear itself. Repairs must be made, and the code should be cleared with a diagnostic tool.

9. Is the B2355 code related to other seat position issues?

Yes, it may be related to other seat adjustment problems if the seat control module or wiring is faulty.

10. What tools are needed to repair the B2355 code?

You’ll need a diagnostic scan tool, a multimeter to test the circuit, and possibly basic hand tools to access and replace components.

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