B3109 2014 GMC Sierra Code - Keyless Entry Transmitter 1 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
- B3109 2014 GMC Sierra indicates Keyless Entry Transmitter 1 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.
Code B3109 2014 GMC Sierra Description
What are the Possible Causes of the DTC B3109 2014 GMC Sierra?
- Low Keyless Entry Transmitter Battery
- Faulty Keyless Entry Transmitter
How to Fix the DTC B3109 2014 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 B3109 2014 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 B3109 2014 GMC Sierra code?
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Frequently Asked Questions about B3109 2014 GMC Sierra Code
1. What does the OBDII code B3109 mean on a 2014 GMC Sierra?
The B3109 code indicates an issue with the Keyless Entry Transmitter 1 Battery, typically due to a weak or dead battery in the key fob.
2. What are the common symptoms of the B3109 code in a 2014 GMC Sierra?
Symptoms include difficulty locking or unlocking doors remotely, problems starting the vehicle with the key fob, or a warning message about the key fob battery.
3. What causes the B3109 code to appear?
The most common cause is a depleted or weak key fob battery. Other potential causes include damage to the key fob or a malfunction in the vehicle's keyless entry system.
4. How do I fix the B3109 code on my 2014 GMC Sierra?
Replace the battery in the key fob with a new one, ensuring it is installed correctly. If the issue persists, inspect the key fob for physical damage or have the vehicle's keyless entry system checked by a professional.
5. What type of battery does the key fob for a 2014 GMC Sierra use?
The key fob typically uses a CR2032 coin cell battery. Check your owner’s manual to confirm the battery type.
6. Can I drive my 2014 GMC Sierra with the B3109 code active?
Yes, you can drive the vehicle, but features like remote locking or starting may not function properly until the issue is resolved.
7. How can I prevent the B3109 code from reoccurring?
Regularly replace the key fob battery every 1-2 years and avoid exposing the key fob to extreme temperatures or moisture.
8. How do I know if my key fob battery needs replacement?
Signs include reduced range for locking/unlocking, unresponsive buttons, or the vehicle displaying a key fob battery warning.
9. Will clearing the B3109 code fix the problem?
Clearing the code without addressing the underlying issue, such as replacing the key fob battery, will not permanently fix the problem.
10. Do I need to reprogram the key fob after replacing the battery?
No, replacing the battery typically does not require reprogramming the key fob, but consult your owner’s manual if any issues arise.
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