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B3105 2017 GMC Sierra Code - Keyless Entry Transmitters

Quick Answer

The B3105 diagnostic trouble code (DTC) for the 2017 GMC Sierra relates to an issue with the keyless entry transmitters. Common causes include Faulty keyless entry transmitters, Malfunctioning receiver unit, Wiring or connection issues. 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
B3105 2017 GMC Sierra indicates Keyless Entry Transmitters.
Common causes
Common causes include Faulty keyless entry transmitters, Malfunctioning receiver unit, Wiring or connection issues.
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 B3105 2017 GMC Sierra Description

The B3105 diagnostic trouble code (DTC) for the 2017 GMC Sierra relates to an issue with the keyless entry transmitters. Keyless entry transmitters are essential components of modern vehicles that allow drivers to lock, unlock, and start their vehicles without physically using a key. When this code appears, it indicates a problem with the keyless entry system, which can impact the vehicle's convenience and security features.

OBDII Code B3105 2017 GMC Sierra - Keyless Entry Transmitters
B3105 2017 GMC Sierra Code - Keyless Entry Transmitters

Common Causes of B3105 2017 GMC Sierra

  1. Faulty keyless entry transmitters
  2. Malfunctioning receiver unit
  3. Wiring or connection issues
  4. Low battery in the keyless entry transmitter
  5. Interference from other electronic devices

Symptoms of B3105 2017 GMC Sierra

  1. Inability to lock or unlock the vehicle remotely
  2. Issues starting the vehicle using the push-button start feature
  3. Keyless entry system not responding to transmitter signals
  4. Warning light on the dashboard related to keyless entry system

How to Fix B3105 2017 GMC Sierra

  1. Check the battery in the keyless entry transmitter and replace if necessary.
  2. Inspect the receiver unit for any damage or faults and replace if needed.
  3. Test the wiring and connections for continuity and repair any issues found.
  4. Re-sync the keyless entry transmitters with the vehicle's receiver according to manufacturer instructions.
  5. Clear the DTC from the vehicle's computer system using a diagnostic tool.

Cost to Fix B3105 2017 GMC Sierra

The typical repair costs for addressing the B3105 code in a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing keyless entry transmitters or the receiver unit can range from $100 to $300 each, not including labor costs. Wiring repairs or battery replacements may cost around $50 to $100. Labor rates at auto repair shops can vary, but on average, expect to pay between $80 and $150 per hour for diagnosis and repairs. It's recommended to consult with a local auto repair shop for a more accurate estimate based on your location and vehicle specifics.

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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 B3105 2017 GMC Sierra Code

1. What does OBDII code B3105 for a 2017 GMC Sierra indicate?

The B3105 code for a 2017 GMC Sierra relates to a problem with the keyless entry transmitters.

2. What are the common symptoms of OBDII code B3105 in a 2017 GMC Sierra?

Common symptoms include issues with keyless entry functionality, such as the remote not working to lock or unlock the vehicle.

3. What are some possible causes of OBDII code B3105 in a 2017 GMC Sierra?

Potential causes of the B3105 code can include faulty keyless entry transmitters, damaged wiring, or issues with the receiver module.

4. How can I diagnose the OBDII code B3105 in my 2017 GMC Sierra?

Diagnosing the B3105 code may involve using a scan tool to retrieve the specific trouble code and testing the keyless entry system components for proper functioning.

5. Are there any DIY repair tips for fixing OBDII code B3105 on a 2017 GMC Sierra?

DIY repair tips may include checking the batteries in the keyless entry transmitters, ensuring they are properly synced with the vehicle, and inspecting for any visible damage to the transmitters or wiring.

6. Can OBDII code B3105 in a 2017 GMC Sierra affect other vehicle systems?

While the B3105 code primarily relates to keyless entry transmitters, if left unresolved, it could potentially impact other related systems like the vehicle's security system.

7. Is it safe to continue driving with OBDII code B3105 present in a 2017 GMC Sierra?

It is generally safe to drive with the B3105 code, but it is recommended to address the issue promptly to avoid inconvenience or potential security concerns related to keyless entry.

8. How much does it typically cost to repair OBDII code B3105 on a 2017 GMC Sierra?

The cost of repairing the B3105 code can vary depending on the specific cause, but it may involve expenses for diagnosing the issue, replacing keyless entry transmitters, or repairing wiring.

9. Can a dealership or auto repair shop help with fixing OBDII code B3105 on a 2017 GMC Sierra?

Yes, a dealership or a reputable auto repair shop with experience in handling keyless entry systems can assist in diagnosing and repairing the B3105 code in a 2017 GMC Sierra.

10. How can I prevent OBDII code B3105 from occurring again in my 2017 GMC Sierra?

To prevent the recurrence of the B3105 code, it is advisable to regularly check the condition of keyless entry transmitters, replace batteries as needed, and address any issues promptly to maintain the system's functionality.

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