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Engine-Codes – GMC – B255F 2017 GMC Sierra

B255F 2017 GMC Sierra Code - Interior Door Handle Backlight Circuit

Quick Answer

The B255F diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the interior door handle backlight circuit. Common causes include Faulty wiring or connectors in the backlight circuit, Burned-out backlight bulb, Malfunctioning 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
B255F 2017 GMC Sierra indicates Interior Door Handle Backlight Circuit.
Common causes
Common causes include Faulty wiring or connectors in the backlight circuit, Burned-out backlight bulb, Malfunctioning 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 16, 2024
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Code B255F 2017 GMC Sierra Description

The B255F diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to an issue with the interior door handle backlight circuit. This code indicates that there is a malfunction in the circuit responsible for illuminating the interior door handle, which can affect the visibility and functionality of the door handle in low-light conditions. The backlight circuit is designed to provide illumination to the door handle to make it easier for occupants to locate and operate the handle, especially in dark environments.

OBDII Code B255F 2017 GMC Sierra - Interior Door Handle Backlight Circuit
B255F 2017 GMC Sierra Code - Interior Door Handle Backlight Circuit

Common Causes of B255F 2017 GMC Sierra

  1. Faulty wiring or connectors in the backlight circuit
  2. Burned-out backlight bulb
  3. Malfunctioning control module
  4. Defective door handle assembly
  5. Water damage or corrosion in the circuit components

Symptoms of B255F 2017 GMC Sierra

  1. Dim or flickering interior door handle backlight
  2. Complete failure of the interior door handle backlight
  3. Difficulty locating and using the door handle in low-light conditions
  4. Warning light on the dashboard indicating a circuit malfunction

How to Fix B255F 2017 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the DTC and inspecting the wiring, connectors, bulb, control module, and door handle assembly.
  2. Replace any faulty components such as wiring, connectors, or the backlight bulb as needed.
  3. Test the circuit to ensure proper functionality before reassembly.
  4. If the control module is the culprit, reprogram or replace it as necessary.
  5. Clear the DTC from the vehicle's memory using the diagnostic scanner to reset the system.

Cost to Fix B255F 2017 GMC Sierra

The typical repair costs for addressing the B255F code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $100 to $300 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate based on location, vehicle make and model, and engine type. It is advisable to contact local auto repair shops for a more accurate estimate tailored to your situation.

What does this mean?

Tech Notes for B255F 2017 GMC Sierra

B255F:02 Interior Door Handle Backlight Circuit Short to Ground

B255F:04 Interior Door Handle Backlight Circuit Open

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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 B255F 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B255F in a 2017 GMC Sierra related to the Interior Door Handle Backlight Circuit?

The common symptoms include the interior door handle backlight not working or flickering intermittently.

2. What can cause the OBDII code B255F to appear in a 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

Possible causes of this code can be a faulty interior door handle backlight assembly, a wiring issue, or a malfunction in the control module.

3. How can I diagnose the cause of OBDII code B255F in my 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

You can start by visually inspecting the interior door handle backlight assembly and the wiring for any visible damage. Using a multimeter to test for continuity can help pinpoint the issue.

4. Is it safe to continue driving my 2017 GMC Sierra with OBDII code B255F related to the Interior Door Handle Backlight Circuit?

It is generally safe to drive the vehicle with this code, as it primarily affects the functionality of the interior door handle backlight and does not impact the vehicle's overall performance.

5. Can I repair OBDII code B255F in my 2017 GMC Sierra related to the Interior Door Handle Backlight Circuit myself?

If you have experience working with automotive electrical systems, you may be able to repair this issue yourself by replacing the faulty interior door handle backlight assembly or fixing any wiring problems.

6. How much does it typically cost to fix OBDII code B255F in a 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

The cost of repair can vary depending on the specific cause of the issue. Replacing the interior door handle backlight assembly or repairing the wiring may range from $50 to $200, excluding labor costs.

7. Can resetting the OBDII system clear the B255F code in my 2017 GMC Sierra related to the Interior Door Handle Backlight Circuit?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. Are there any recalls or technical service bulletins related to OBDII code B255F in a 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

It's recommended to check with a GMC dealership or visit the NHTSA website to see if there are any recalls or technical service bulletins related to this specific OBDII code.

9. What are the potential long-term effects of ignoring OBDII code B255F in a 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

Ignoring this code may result in permanent malfunction of the interior door handle backlight, which could be inconvenient for visibility and aesthetics.

10. How can I prevent OBDII code B255F from reoccurring in my 2017 GMC Sierra for the Interior Door Handle Backlight Circuit?

Regularly inspecting the interior door handle backlight assembly and wiring for any signs of damage, and addressing any issues promptly can help prevent the code from reoccurring.

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