AutoCodes – GMC – B310E 2015 GMC Sierra

B310E 2015 GMC Sierra Code - Keyless Entry Transmitter 7 Battery

Quick Answer

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter. 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 2015 GMC Sierra indicates Keyless Entry Transmitter 7 Battery.
Common causes: Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter.
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 411

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 11, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B310E 2015 GMC Sierra Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. The Remote Control Door Lock Receiver sends this to the Body Control Module (BCM) to perform the requested function. The Diagnostic Trouble Code (DTC) sets when three consecutive low-battery signals are received from the same transmitter.

OBDII Code B310E 2015 GMC Sierra - Keyless Entry Transmitter 7 Battery - AutoCodes.com — B310E 2015 GMC Sierra Code - Keyless Entry Transmitter 7 Battery

What does this mean?

What are the Possible Causes of the DTC B310E 2015 GMC Sierra?

Low Keyless Entry Transmitter Battery
Faulty Keyless Entry Transmitter

How to Fix the DTC B310E 2015 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B310E 2015 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 B310E 2015 GMC Sierra code?

Need more information on how to fix the B310E 2015 GMC Sierra code? Get Access to Factory Service Manuals

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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 2015 GMC Sierra Code

1. What does the OBDII code B310E mean on a 2015 GMC Sierra?

The code B310E indicates an issue with the battery in Keyless Entry Transmitter 7, which is one of the key fobs programmed for the vehicle.

2. What are the common symptoms of code B310E in a 2015 GMC Sierra?

Symptoms include reduced range or failure of the key fob to lock/unlock the doors, start the vehicle remotely, or communicate with the vehicle reliably.

3. What causes the B310E code to appear?

The most common cause is a weak or dead battery in the keyless entry transmitter. Other causes may include a damaged key fob, interference, or issues with the vehicleâ€™s receiver.

4. How do I fix the B310E code on my 2015 GMC Sierra?

Replacing the battery in the affected key fob (Transmitter 7) usually resolves the issue. Ensure the new battery is installed correctly with the correct polarity.

5. How do I know which key fob is Transmitter 7 for the B310E code?

The transmitter number corresponds to the programming order. If unsure, test all key fobs to identify the one with a weak or non-responsive signal.

6. Can interference cause the B310E code on my GMC Sierra?

Yes, strong radio frequency interference from nearby devices or structures can disrupt communication between the key fob and the vehicle.

7. Do I need to reprogram the key fob after replacing the battery?

No, typically replacing the battery does not require reprogramming. However, if issues persist, reprogramming may be necessary.

8. What type of battery does the 2015 GMC Sierra key fob use?

Most 2015 GMC Sierra key fobs use a CR2032 coin battery, but confirm the size by checking your ownerâ€™s manual or the old battery.

9. Can a damaged key fob cause the B310E code?

Yes, a damaged key fob, such as one with a broken circuit board or worn internal components, can trigger the code.

10. Is it safe to drive with the B310E code active?

Yes, the vehicle is still drivable, but you may experience inconvenience with remote functions like locking/unlocking or remote start. Replace the key fob battery promptly to avoid further issues.