Engine-CodesGMC – B3111 2017 GMC Sierra

B3111 2017 GMC Sierra Code - Keyless Entry Transmitter 3 Battery

Quick Answer

The B3111 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the Keyless Entry Transmitter 3 Battery. Common causes include Low battery power 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
B3111 2017 GMC Sierra indicates Keyless Entry Transmitter 3 Battery.
Common causes
Common causes include Low battery power 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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B3111 2017 GMC Sierra Description

The B3111 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the Keyless Entry Transmitter 3 Battery. In modern vehicles, keyless entry systems use a transmitter in the key fob to communicate with the vehicle's receiver, allowing for remote locking and unlocking of the doors. The transmitter is powered by a small battery, and when this battery is low or depleted, it can lead to communication issues between the key fob and the vehicle.

OBDII Code B3111 2017 GMC Sierra - Keyless Entry Transmitter 3 Battery
B3111 2017 GMC Sierra Code - Keyless Entry Transmitter 3 Battery

Common Causes of B3111 2017 GMC Sierra

  1. Low battery power 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
  5. General wear and tear on the key fob

Symptoms of B3111 2017 GMC Sierra

  1. Key fob not unlocking or locking the doors remotely
  2. Key fob buttons not responding to commands
  3. Reduced range of key fob operation
  4. Inconsistent performance of keyless entry system
  5. Warning message on the vehicle's dashboard related to keyless entry system

How to Fix B3111 2017 GMC Sierra

  1. Replace the battery in the keyless entry transmitter.
  2. Test the key fob to ensure proper communication with the vehicle.
  3. Reprogram the keyless entry system if necessary.
  4. Inspect for any water damage or corrosion in the key fob.
  5. Check the vehicle's electrical system for any underlying issues affecting the keyless entry system.

Cost to Fix B3111 2017 GMC Sierra

The cost of repairing a Keyless Entry Transmitter 3 Battery issue can vary depending on the specific circumstances. Generally, replacing the battery in a key fob is a relatively inexpensive fix, 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.

Need more information about the B3111 2017 GMC Sierra code?

Need more information on how to fix the B3111 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3111 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 B3111 2017 GMC Sierra Code

1. What does the OBDII code B3111 mean on a 2017 GMC Sierra?

B3111 indicates an issue with the Keyless Entry Transmitter 3 Battery, typically related to a low or dead battery in the third key fob.

2. What are the common symptoms of code B3111 in a 2017 GMC Sierra?

Symptoms include the key fob not working to lock/unlock doors, inability to start the vehicle with that specific key fob, or a dashboard message indicating a low key fob battery.

3. What causes the B3111 code to appear?

The most common cause is a low or depleted battery in the third key fob. Other causes may include poor battery contacts, a faulty key fob, or an issue with the vehicle's receiver module.

4. How do I fix the B3111 code on my 2017 GMC Sierra?

Replace the battery in the third key fob with a new one. Ensure proper installation and verify that the key fob works correctly after replacement.

5. What type of battery does the key fob for a 2017 GMC Sierra use?

The key fob typically uses a CR2032 lithium coin battery, but it's best to check your vehicle's manual or the markings on the old battery for confirmation.

6. How can I prevent the B3111 code from occurring again?

Regularly check and replace the key fob battery before it completely depletes. Keep a spare battery handy for convenience.

7. Can the B3111 code affect vehicle performance?

No, the code itself does not impact vehicle performance, but it can prevent keyless entry or starting if the affected key fob is the only one available.

8. How do I clear the B3111 code after replacing the key fob battery?

The code should clear on its own after the key fob is functioning properly. If it doesn’t, you may need to use an OBDII scanner to manually clear it.

9. What if replacing the key fob battery doesn’t fix the B3111 code?

If the issue persists, inspect the key fob for damage, check for poor battery contacts, or test the vehicle’s receiver module for faults.

10. Can I still start my 2017 GMC Sierra if the key fob’s battery is dead?

Yes, the key fob typically has a backup method to start the vehicle, such as placing it in a specific slot or pressing it against the start button. Check your owner’s manual for details.

Discuss the causes and fixes for B3111 2017 GMC Sierra OBDII Code

Code B3111 2017 GMC Sierra comments

No comments found for this page.