AutoCodes – GMC – B3112 2015 GMC Sierra

B3112 2015 GMC Sierra Code - Keyless Entry Transmitter 4 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: B3112 2015 GMC Sierra indicates Keyless Entry Transmitter 4 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 167

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 B3112 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 B3112 2015 GMC Sierra - Keyless Entry Transmitter 4 Battery - AutoCodes.com — B3112 2015 GMC Sierra Code - Keyless Entry Transmitter 4 Battery

What does this mean?

What are the Possible Causes of the DTC B3112 2015 GMC Sierra?

Low Keyless Entry Transmitter Battery
Faulty Keyless Entry Transmitter

How to Fix the DTC B3112 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 B3112 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 B3112 2015 GMC Sierra code?

Need more information on how to fix the B3112 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2015 GMC Sierra Code

1. What does OBDII code B3112 for a 2015 GMC Sierra indicate?

The code B3112 specifically relates to the Keyless Entry Transmitter 4 Battery in a 2015 GMC Sierra.

2. What are the common symptoms of OBDII code B3112 in a 2015 GMC Sierra?

Common symptoms include issues with the functionality of the Keyless Entry Transmitter 4, such as difficulty locking or unlocking the vehicle.

3. What are some possible causes of OBDII code B3112 in a 2015 GMC Sierra?

The code B3112 can be triggered by a weak or failing battery in the Keyless Entry Transmitter 4.

4. How can I diagnose the Keyless Entry Transmitter 4 Battery issue in a 2015 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 inspection may be needed.

5. Can a DIY enthusiast replace the Keyless Entry Transmitter 4 Battery in a 2015 GMC Sierra?

Yes, replacing the battery in the Keyless Entry Transmitter 4 is usually a straightforward DIY task that can be done with basic tools.

6. Are there any specific battery requirements for the Keyless Entry Transmitter 4 in a 2015 GMC Sierra?

It is recommended to use the correct type and size of battery specified by the manufacturer to ensure proper functionality.

7. How much does it typically cost to replace the Keyless Entry Transmitter 4 Battery in a 2015 GMC Sierra?

The cost of replacing the battery in the Keyless Entry Transmitter 4 can vary depending on the type of battery used and whether you choose to do it yourself or have a professional do it.

8. Will OBDII code B3112 cause any other issues in a 2015 GMC Sierra if left unresolved?

While the main issue with B3112 is related to the Keyless Entry Transmitter 4, leaving it unresolved could potentially lead to further complications with the vehicle's keyless entry system.

9. Can resetting the OBDII code B3112 in a 2015 GMC Sierra fix the problem temporarily?

Resetting the code may temporarily clear the warning light, but if the underlying issue with the Keyless Entry Transmitter 4 Battery is not addressed, the problem is likely to recur.

10. Is it necessary to visit a dealership for repair if OBDII code B3112 appears in a 2015 GMC Sierra?

Not necessarily. As long as you can diagnose and address the Keyless Entry Transmitter 4 Battery issue, you may not need to visit a dealership for repair.