Yes, changing the battery in your key fob is a straightforward process that can save you time and money. Most dealerships charge $50-100 for this simple service that you can easily do at home in just a few minutes. Here’s a complete guide to help you replace the battery:
Step-by-Step Instructions
- Locate the Seam or Notch: Inspect your key fob for a visible seam or a small notch along the edge. This is where the fob can be opened.
- Open the Key Fob: Use the flathead screwdriver or pry tool to gently separate the two halves of the fob. Insert the tool into the notch and twist carefully to avoid damaging the casing.
- Remove the Old Battery: Once opened, identify the battery. Note its orientation (which side is facing up). Use tweezers or your fingers to remove the old battery.
- Insert the New Battery: Place the new battery (commonly CR2032, CR2025, or CR1620; check your key fob or owner’s manual) in the same orientation as the old one. Ensure it sits securely in its compartment.
- Reassemble: Align the two halves of the fob and press them together until they snap into place.
- Test: Press the buttons to ensure the fob is functioning correctly.
Safety Tips:
When replacing the battery in your key fob, it’s important to follow a few safety tips: handle the fob gently to avoid damaging any internal components, use tweezers or wear gloves to avoid getting skin oils on the battery contacts, and always dispose of old batteries properly by following your local disposal regulations to protect the environment.
Congratulations, you’ve done most of it. Below is the last step you need to do.
How to reprogram key fob after replacing battery?
After replacing the battery in your key fob, it typically retains its programming. However, if it’s not functioning correctly, here are some steps you can take to troubleshoot and potentially reprogram it:
Reprogramming Steps
These steps can vary by vehicle make and model, but a common method involves:
1) Enter Programming Mode:
- Insert the key into the ignition and turn it to the “On” position (do not start the engine).
- Turn the key back to the “Off” position.
- Repeat this cycle (On → Off) several times (usually 4 to 8 times) within a few seconds.
- You’ll know you’re in programming mode when you hear a chime or see the locks cycle.
2) Program the Key Fob:
- Press any button on the key fob.
- Wait for a confirmation (locks cycling or a chime).
3) Exit Programming Mode:
- Turn the ignition to the “Off” position and remove the key.
- Test the key fob to ensure it’s working correctly.
Where Can You Buy Key Fob Batteries and How Much Do They Cost?
In the United States, the cost of key fob batteries varies depending on their type, brand, and quantity. These prices are based on online retailers like Amazon and Walmart and may vary slightly depending on the seller and any ongoing promotions. Purchasing in bulk often offers better value per unit.
🔋 CR2032 Battery
- Energizer CR2032 (4-Pack): Approximately $6.00.
- Duracell CR2032 (2-Pack): Around $5.23.
- LiCB CR2032 (10-Pack): Approximately $5.99.
🔋 CR2025 Battery
- Murata CR2025 (25-Pack): Priced at $10.95, which is about $0.44 per battery.
- Duracell CR2025 (2-Pack): Available for $5.23.
- Energizer CR2025 (10-Pack): Approximately $9.90.
- LiCB CR2025 (10-Pack): Priced at $5.99.
🔋 CR1620 Battery
- LiCB CR1620 (10-Pack): Available for $5.39.
- Maxell CR1620 (5-Pack): Approximately $5.75.
How long do key fob batteries last?
Lifespan of a car key fob battery is typically dependent on a number of variables. These batteries typically last between three and five years.
