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B310E 2014 GMC Sierra Code - Keyless Entry Transmitter 7 Battery

Quick Answer

The B310E diagnostic trouble code (DTC) specifically pertains to the keyless entry system of the 2014 GMC Sierra, indicating an issue with the battery of the keyless entry transmitter, designated as "Transmitter 7." This code suggests that the vehicle's onboard diagnostic system has detected a malfunction related to the battery status of one of the key fobs. Common causes include A depleted or weak battery in the keyless entry transmitter, Corrosion or damage to the battery terminals within the key fob, Faulty key fob circuitry or internal components. 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
B310E 2014 GMC Sierra indicates Keyless Entry Transmitter 7 Battery.
Common causes
Common causes include A depleted or weak battery in the keyless entry transmitter, Corrosion or damage to the battery terminals within the key fob, Faulty key fob circuitry or internal components.
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 Oct 08, 2024
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Code B310E 2014 GMC Sierra Description

The B310E diagnostic trouble code (DTC) specifically pertains to the keyless entry system of the 2014 GMC Sierra, indicating an issue with the battery of the keyless entry transmitter, designated as "Transmitter 7." This code suggests that the vehicle's onboard diagnostic system has detected a malfunction related to the battery status of one of the key fobs. The keyless entry system is integral to the vehicle's convenience and security features, allowing for remote locking and unlocking of doors, as well as remote starting capabilities in some models.

OBDII Code B310E 2014 GMC Sierra - Keyless Entry Transmitter 7 Battery
B310E 2014 GMC Sierra Code - Keyless Entry Transmitter 7 Battery

Common Causes of B310E 2014 GMC Sierra

  1. A depleted or weak battery in the keyless entry transmitter.
  2. Corrosion or damage to the battery terminals within the key fob.
  3. Faulty key fob circuitry or internal components.
  4. Environmental factors such as extreme temperatures affecting battery performance.
  5. Interference from other electronic devices or malfunctioning vehicle systems.

Symptoms of B310E 2014 GMC Sierra

  1. Inability to unlock or lock the vehicle doors remotely using the key fob.
  2. Warning lights on the dashboard indicating a key fob issue or battery low warning.
  3. Difficulty starting the vehicle, especially in push-to-start models.
  4. Intermittent functionality of the key fob, where it works sporadically.
  5. Physical signs of battery leakage or corrosion on the key fob terminals.

How to Fix B310E 2014 GMC Sierra

  1. Battery Replacement: The first step is to replace the battery in the key fob. This typically involves opening the fob casing, removing the old battery, and inserting a new one. Ensure the new battery is of the correct type and orientation.
  2. Inspect for Corrosion: After replacing the battery, inspect the battery terminals for any signs of corrosion or damage. Clean the terminals if necessary using a small brush and contact cleaner.
  3. Test Key Fob Functionality: After replacing the battery and cleaning the terminals, test the key fob to ensure it is functioning correctly. This can be done by attempting to lock and unlock the vehicle doors.
  4. Reprogram Key Fob (if needed): In some cases, the key fob may need to be reprogrammed to the vehicle. This can often be done by following specific procedures outlined in the vehicle's owner manual or with the assistance of a professional.
  5. Consult Professional Assistance: If the key fob still does not function after these steps, it may be necessary to consult a professional technician to diagnose potential issues with the vehicle’s keyless entry system or to replace the key fob entirely.

Cost to Fix B310E 2014 GMC Sierra

The cost of repairing the B310E code primarily revolves around the replacement of the key fob battery, which typically ranges from $5 to $20 for the battery itself. If additional repairs or reprogramming are required, costs can increase significantly. Labor costs for a technician to diagnose and repair the issue can range from $80 to $150 per hour, depending on the shop's location and reputation. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer more competitive pricing. Overall, a complete repair could range from $50 to $200, depending on the extent of the work needed. It’s advisable to check local rates for a more precise estimate tailored to your specific situation.

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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 B310E 2014 GMC Sierra Code

1. What does the OBDII code B310E for the 2014 GMC Sierra indicate?

The B310E code specifically relates to a fault in the Keyless Entry Transmitter 7 Battery.

2. What are the common symptoms of a B310E code in a 2014 GMC Sierra?

Common symptoms include issues with the keyless entry system, such as the remote not working or having a reduced range.

3. What are the possible causes of the B310E code in a 2014 GMC Sierra?

The B310E code is often triggered by a weak or failing battery in the keyless entry transmitter.

4. How can I diagnose the cause of a B310E code in my 2014 GMC Sierra?

You can start by checking the battery voltage in the keyless entry transmitter and replacing it if necessary. Also, ensure there are no physical damages to the transmitter.

5. Can I still drive my 2014 GMC Sierra with a B310E code?

Yes, you can still drive the vehicle with this code, but you may experience inconvenience with the keyless entry system.

6. How do I repair the B310E code in my 2014 GMC Sierra?

To repair the B310E code, you typically need to replace the battery in the Keyless Entry Transmitter 7.

7. Are there any DIY tips for fixing the B310E code in my 2014 GMC Sierra?

If you're comfortable with basic car maintenance, you can try replacing the transmitter battery yourself using a compatible battery and following the manufacturer's instructions.

8. Can a B310E code be intermittent in a 2014 GMC Sierra?

Yes, sometimes the B310E code can be intermittent, especially if the battery connection is loose or the battery is on the verge of failing.

9. Will resetting the B310E code make it go away permanently in a 2014 GMC Sierra?

Resetting the code may temporarily clear it, but if the underlying issue, such as a weak battery, is not addressed, the code is likely to reappear.

10. How much does it cost to fix a B310E code in a 2014 GMC Sierra?

The cost of fixing a B310E code can vary depending on whether you replace the transmitter battery yourself or take it to a mechanic. On average, replacing the battery should be a relatively inexpensive repair.

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