Replacing the battery in your 2011 Jeep Cherokee key fob is a straightforward task that you can easily handle yourself, saving time and money compared to dealership service. This guide will walk you through the process step-by-step and address a peculiar issue some owners encounter after replacement.
Step-by-Step Battery Replacement
Typically, your Jeep Cherokee key fob uses a CR2032 3V coin cell battery. Here’s how to replace it:
- Locate the notch: On the side of your key fob, you’ll find a small notch.
- Open the fob: Use a small flathead screwdriver or a coin to gently pry open the fob at the notch. Be careful not to scratch the plastic.
- Remove the old battery: Once open, you’ll see the battery. Note the orientation (+ side up). Gently remove the old battery.
- Insert the new battery: Install the new CR2032 battery with the + side facing upwards, matching the original orientation.
- Close the fob: Snap the key fob case back together until it clicks securely.
The Unexpected Issue: Fob Not Working After Battery Change
Some 2011 Jeep Cherokee owners have reported an unusual problem: after replacing the key fob battery, the fob doesn’t immediately work. Even with a brand-new battery, the remote functions like locking, unlocking, and remote start might fail. Interestingly, reinstalling the old, weak battery sometimes makes the fob work again temporarily.
One user discovered a solution to this:
- The Fob-on-Start-Button Method: If your new battery doesn’t seem to work, go to your Jeep Cherokee and attempt to start the vehicle by pressing the key fob directly against the start button. This is the same method used when the fob battery is completely dead.
After starting the vehicle this way, the key fob functions might return to normal.
Why Does This Happen?
The exact reason for this behavior isn’t officially documented by Jeep. However, it’s speculated that the vehicle’s system or the key fob might have a memory or process that monitors battery levels. When a new battery is installed, the system might not immediately recognize the change in power level. The “fob-on-start-button” method could potentially reset or recalibrate the system to recognize the new battery.
Troubleshooting Tips
- Double-check battery type: Ensure you are using a CR2032 battery.
- Battery orientation: Make sure the battery is installed with the correct polarity (+ side up).
- Clean contacts: If it still doesn’t work, gently clean the battery contacts inside the fob with a cotton swab.
- Try the fob-on-start-button method: As described above, this is often the key to resolving the issue.
Avoid Dealership Overcharges
Don’t be misled into thinking you need a new key fob or reprogramming from the dealership right away. Replacing the battery is a simple DIY task. Try these steps, and you’ll likely get your 2011 Jeep Cherokee key fob working again with a fresh battery.
