AutoCodes – GMC – B310F 2018 GMC Sierra

B310F 2018 GMC Sierra Code - Keyless Entry Transmitter 8 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: B310F 2018 GMC Sierra indicates Keyless Entry Transmitter 8 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 175

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 B310F 2018 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 B310F 2018 GMC Sierra - Keyless Entry Transmitter 8 Battery - AutoCodes.com — B310F 2018 GMC Sierra Code - Keyless Entry Transmitter 8 Battery

What does this mean?

What are the Possible Causes of the DTC B310F 2018 GMC Sierra?

Low Keyless Entry Transmitter Battery
Faulty Keyless Entry Transmitter

How to Fix the DTC B310F 2018 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 B310F 2018 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 B310F 2018 GMC Sierra code?

Need more information on how to fix the B310F 2018 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 B310F 2018 GMC Sierra Code

1. What does OBDII code B310F mean for a 2018 GMC Sierra related to the Keyless Entry Transmitter 8 Battery?

This code indicates a low battery voltage condition in the Keyless Entry Transmitter 8, which can affect the remote keyless entry system.

2. What are the common symptoms of OBDII code B310F in a 2018 GMC Sierra?

Common symptoms include intermittent or complete failure of the remote keyless entry system, difficulty locking or unlocking the vehicle using the key fob, and a warning message on the instrument cluster.

3. What are the possible causes of OBDII code B310F in a 2018 GMC Sierra?

The main causes of this code are a weak or failing battery in the Keyless Entry Transmitter 8, poor electrical connection, or a malfunction in the key fob itself.

4. How can I diagnose OBDII code B310F in my 2018 GMC Sierra?

To diagnose this code, you can start by checking the battery voltage in the Keyless Entry Transmitter 8 using a multimeter. Ensure the battery is properly seated and making good contact. If the battery voltage is low, replacing the battery may resolve the issue.

5. Can I repair OBDII code B310F in my 2018 GMC Sierra myself?

In many cases, you can replace the battery in the Keyless Entry Transmitter 8 yourself. Simply open the key fob, remove the old battery, and insert a new one following the manufacturer's recommendations. If the issue persists, professional diagnosis may be needed.

6. Is it safe to continue driving my 2018 GMC Sierra with OBDII code B310F unresolved?

While the vehicle is still operational with this code, it is recommended to address it promptly to avoid potential inconvenience of being unable to unlock or start the vehicle using the key fob.

7. How often should I replace the battery in the Keyless Entry Transmitter 8 of my 2018 GMC Sierra?

It's a good practice to replace the battery in the key fob every 1-2 years or when you notice a decrease in the remote's range or functionality.

8. Can extreme weather conditions affect OBDII code B310F in a 2018 GMC Sierra?

Yes, extreme temperatures can impact the battery life and performance of the key fob, potentially triggering the low battery voltage condition associated with this code.