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Engine-Codes – GMC – B3111 GMC

B3111 GMC Code - Keyless Entry Transmitter 3 Battery

Quick Answer

The B3111 GMC code indicates a problem with the battery of the keyless entry transmitter 3 in the vehicle. Common causes include Normal wear and tear on the keyless entry transmitter battery, Exposure to extreme temperatures affecting battery performance, Faulty keyless entry transmitter causing excessive battery drain. 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 GMC indicates Keyless Entry Transmitter 3 Battery.
Common causes
Common causes include Normal wear and tear on the keyless entry transmitter battery, Exposure to extreme temperatures affecting battery performance, Faulty keyless entry transmitter causing excessive battery drain.
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 Sep 14, 2024
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Code B3111 GMC Description

The B3111 GMC code indicates a problem with the battery of the keyless entry transmitter 3 in the vehicle. The keyless entry transmitter is a device that allows the driver to remotely lock and unlock the doors, as well as perform other functions such as opening the trunk or activating the panic alarm. The transmitter uses a small battery to power its functions, and when this battery is low or depleted, it can cause issues with the transmitter's performance.

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

Common Causes of B3111 GMC

  1. Normal wear and tear on the keyless entry transmitter battery.
  2. Exposure to extreme temperatures affecting battery performance.
  3. Faulty keyless entry transmitter causing excessive battery drain.
  4. Water damage to the transmitter affecting battery function.

Symptoms of B3111 GMC

  1. Inability to lock or unlock the vehicle remotely.
  2. Intermittent response from the keyless entry transmitter.
  3. Reduced range of the transmitter's signal.
  4. Warning light on the dashboard indicating a keyless entry system fault.

How to Fix B3111 GMC

  1. Purchase a replacement battery for the keyless entry transmitter 3.
  2. Open the transmitter case using a small screwdriver.
  3. Remove the old battery and replace it with the new one, ensuring proper orientation.
  4. Close the transmitter case and test the functionality by locking and unlocking the vehicle.
  5. If the issue persists, consider replacing the entire keyless entry transmitter.

Cost to Fix B3111 GMC

The cost of replacing the battery in a keyless entry transmitter 3 is relatively low, typically ranging from $5 to $20 for the battery itself. If the entire transmitter needs to be replaced, the cost can be higher, ranging from $50 to $200 depending on the make and model of the vehicle. Labor costs at auto repair shops can vary, but expect to pay between $50 and $150 for this type of repair. Keep in mind that rates may be higher at dealerships or in metropolitan areas.

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Information for Specific GMC Models

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 GMC Code

1. What are the common symptoms of OBDII code B3111 GMC related to the Keyless Entry Transmitter 3 Battery?

The common symptoms include issues with the keyless entry system, such as the remote not working, difficulty in locking or unlocking the doors, or the need to replace the transmitter battery frequently.

2. What are the possible causes of OBDII code B3111 GMC?

The code B3111 typically indicates a low battery voltage in the Keyless Entry Transmitter 3. This can be caused by a weak or dying battery in the key fob, poor connection, or a faulty transmitter.

3. How can I diagnose the issue related to OBDII code B3111 GMC?

To diagnose the problem, you can start by checking the battery voltage in the key fob using a multimeter. If the battery is fine, you may need to inspect the connections and the transmitter itself for any damage.

4. Can I repair OBDII code B3111 GMC myself?

In some cases, you may be able to replace the battery in the Keyless Entry Transmitter 3 yourself. However, if the issue persists after battery replacement, it's recommended to seek professional help to diagnose and fix the underlying problem.

5. How often should I replace the battery in the Keyless Entry Transmitter 3 to prevent OBDII code B3111 GMC?

It's a good practice to replace the battery in the key fob every 1-2 years or as soon as you notice any symptoms of a weak battery. Regularly replacing the battery can help prevent issues related to code B3111.

6. Is OBDII code B3111 GMC a serious problem?

While OBDII code B3111 itself may not pose a serious threat to the vehicle's operation, it can be inconvenient if the keyless entry system malfunctions. It's best to address the issue promptly to avoid any inconvenience.

7. Can OBDII code B3111 GMC cause other problems in the vehicle?

The code B3111 is specific to the Keyless Entry Transmitter 3 battery issue and is unlikely to cause other problems in the vehicle. However, addressing the code promptly can prevent potential issues with the keyless entry system.

8. Will resetting the OBDII code B3111 GMC resolve the problem?

Resetting the code may temporarily clear the error message, but if the underlying issue such as a weak battery or faulty transmitter is not addressed, the problem is likely to recur. It's important to diagnose and fix the root cause.

9. How much does it cost to repair OBDII code B3111 GMC at a dealership?

The cost of repairing OBDII code B3111 GMC at a dealership can vary depending on the exact cause of the issue. Replacing the key fob battery is relatively inexpensive, but if the transmitter or other components need replacement, the cost may be higher.

10. Can I still drive my vehicle with OBDII code B3111 GMC?

You can still drive your vehicle with OBDII code B3111 GMC, but you may experience inconvenience with the keyless entry system. It's recommended to address the issue promptly to avoid any potential problems with accessing your vehicle.

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