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B3112 2017 GMC Sierra Code - Keyless Entry Transmitter 4 Battery

Quick Answer

The B3112 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically relates to the Keyless Entry Transmitter 4 Battery. Common causes include Low battery in the keyless entry transmitter, Faulty keyless entry transmitter, Water damage to the key fob. 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
B3112 2017 GMC Sierra indicates Keyless Entry Transmitter 4 Battery.
Common causes
Common causes include Low battery in the keyless entry transmitter, Faulty keyless entry transmitter, Water damage to the key fob.
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 12, 2024
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Code B3112 2017 GMC Sierra Description

The B3112 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically relates to the Keyless Entry Transmitter 4 Battery. This code indicates that there is an issue with the battery of the keyless entry transmitter number 4. The keyless entry transmitter is a crucial component of the vehicle's security system, allowing the driver to remotely lock and unlock the doors, as well as possibly control other functions such as the alarm system or trunk release.

OBDII Code B3112 2017 GMC Sierra - Keyless Entry Transmitter 4 Battery
B3112 2017 GMC Sierra Code - Keyless Entry Transmitter 4 Battery

Common Causes of B3112 2017 GMC Sierra

  1. Low battery in the keyless entry transmitter.
  2. Faulty keyless entry transmitter.
  3. Water damage to the key fob.
  4. Electrical issues in the keyless entry system.

Symptoms of B3112 2017 GMC Sierra

  1. Inability to lock or unlock the doors remotely.
  2. Key fob buttons not responding.
  3. Reduced range of the keyless entry transmitter.
  4. Intermittent functionality of the key fob.

How to Fix B3112 2017 GMC Sierra

  1. Replace the battery in the keyless entry transmitter.
  2. Test the functionality of the key fob.
  3. Check for any signs of water damage in the key fob.
  4. Inspect the keyless entry system for any electrical faults.
  5. Program the keyless entry transmitter to the vehicle.

Cost to Fix B3112 2017 GMC Sierra

The cost of repairing a keyless entry transmitter 4 battery issue can vary depending on the specific cause of the problem. In general, replacing the battery in the key fob is a relatively inexpensive repair, with the cost of a new battery typically ranging from $5 to $20. If the key fob itself is faulty and needs to be replaced, the cost can be higher, ranging from $50 to $200 depending on the make and model of the vehicle. Labor costs for diagnosing and repairing the issue can range from $50 to $150, with total repair costs typically falling between $100 and $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the specific repair shop.

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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 B3112 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B3112 on a 2017 GMC Sierra related to the Keyless Entry Transmitter 4 Battery?

The common symptoms include issues with the keyless entry system, such as the key fob not working properly or the vehicle not responding to remote commands.

2. What are the possible causes of OBDII code B3112 on a 2017 GMC Sierra?

The code B3112 typically indicates a low battery level in the keyless entry transmitter 4, which could be caused by a depleted battery or a faulty transmitter.

3. How can I diagnose the issue related to OBDII code B3112 on my 2017 GMC Sierra?

You can start by replacing the battery in the keyless entry transmitter 4 to see if it resolves the problem. If the issue persists, further troubleshooting may be needed to check for any underlying transmitter issues.

4. Can I replace the battery in the keyless entry transmitter 4 myself?

Yes, replacing the battery in the keyless entry transmitter 4 is a simple and straightforward process that you can do yourself. Refer to the vehicle's manual for instructions on how to access and replace the battery.

5. Is OBDII code B3112 on a 2017 GMC Sierra a serious issue?

While OBDII code B3112 related to the Keyless Entry Transmitter 4 Battery is not a critical problem, it can be inconvenient if the keyless entry system is not functioning properly. It is recommended to address the issue promptly to ensure the smooth operation of the key fob.

6. How often should I replace the battery in the keyless entry transmitter 4 of my 2017 GMC Sierra?

The battery in the keyless entry transmitter 4 should be replaced as needed when it no longer provides sufficient power to operate the key fob effectively. It is a good practice to replace the battery proactively before it completely runs out.

7. Are there any aftermarket solutions available to improve the battery life of the keyless entry transmitter 4 in a 2017 GMC Sierra?

There are aftermarket batteries available that claim to offer longer battery life for keyless entry transmitters. However, it is essential to ensure compatibility and quality when choosing such replacements.

8. Will resetting the OBDII code B3112 on my 2017 GMC Sierra resolve the issue with the Keyless Entry Transmitter 4 Battery?

Resetting the code may temporarily clear the error message, but if the root cause, such as a low battery, is not addressed, the problem is likely to reoccur. It is best to diagnose and fix the underlying issue for a lasting solution.

9. Can a malfunctioning keyless entry transmitter 4 affect other vehicle systems on a 2017 GMC Sierra?

While the keyless entry transmitter 4 primarily affects the key fob operation, it is designed as a standalone system and should not impact other vehicle systems. However, addressing the issue promptly is still recommended to avoid any potential inconvenience.

10. Is it possible to bypass the keyless entry transmitter 4 system on a 2017 GMC Sierra if needed?

Bypassing the keyless entry transmitter 4 system is not recommended, as it is an integral part of the vehicle's security and convenience features. It is best to address any issues with the system through proper diagnosis and repair methods.

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