Changing the battery in your Jeep key fob is a straightforward task that can save you time and money compared to dealership services. If your key fob is starting to feel unresponsive or has completely stopped working, a battery replacement is likely the solution. This guide will walk you through the process of changing your Jeep key fob battery and offer a helpful tip if you encounter unexpected issues after replacement.
The process for changing your Jeep key fob battery generally involves these steps:
- Identify your key fob type: Jeep key fobs vary slightly depending on the model and year of your vehicle. Common types include those with a physical key insert or completely keyless fobs.
- Gather your tools and new battery: You’ll typically need a small flathead screwdriver or a coin to open the fob casing. Ensure you have the correct replacement battery, usually a CR2032 or CR2025 3V lithium coin cell battery. Check your owner’s manual or the old battery for the exact type.
- Open the key fob casing: Look for a small notch or seam on your key fob. Use the flathead screwdriver or coin to gently pry open the casing. Some fobs may have a small release button or screw that needs to be addressed first.
- Remove the old battery: Once open, you’ll see the battery. Note the orientation (+ side up) before carefully removing it. You might need to use the screwdriver to gently nudge it out.
- Insert the new battery: Place the new battery into the compartment, ensuring the correct orientation (usually + side facing upwards).
- Close the key fob casing: Carefully snap the fob casing back together until it’s securely closed.
Sometimes, even after replacing the battery, your Jeep key fob might not immediately work. You might try multiple new batteries, only to find the old, weak battery still operates the fob while the new ones don’t seem to be recognized. In such cases, a simple re-initialization trick might be needed.
If your Jeep key fob is not working after a battery change, try this:
- Go to your Jeep: Take your key fob to your Jeep vehicle.
- Use the fob-on-start-button method: Enter your vehicle and attempt to start your Jeep by pressing the key fob directly against the start button. This is the same method you would use if your key fob battery was completely dead.
Starting your vehicle using this method can sometimes re-initialize the key fob with the vehicle’s system, allowing it to recognize the new battery’s power level. It’s suspected that some Jeep models have a system that monitors battery levels and might not immediately register a new battery without this re-initialization step.
If this trick works, your key fob should now function normally with the new battery. If you continue to experience issues, or if this method does not work, it might be necessary to consult with a professional. While dealerships can assist, be aware of potential costs for reprogramming or new fobs. Trying a simple battery change and re-initialization can often resolve the issue, saving you unnecessary expenses and hassle.
