Replacing the battery in your 2005 Jeep Grand Cherokee key fob should be a straightforward task. However, some owners have encountered a peculiar issue where a new battery doesn’t immediately restore the key fob’s functionality. You might find yourself wondering why your newly replaced battery isn’t working, even after ensuring it’s the correct type and properly installed.
One Jeep Grand Cherokee owner shared an experience highlighting this exact problem. After replacing their key fob battery, they discovered that despite using multiple new batteries, the fob remained unresponsive. Interestingly, the old, weak battery would still operate the key fob, but none of the fresh batteries seemed to work initially.
The solution, surprisingly, was not related to the battery itself, but rather a potential undocumented process within the vehicle or the key fob. The owner found that the new battery only became fully functional after they used the key fob to start the vehicle by pressing the fob against the start button – the same method used when the fob battery is completely dead.
This suggests that there might be a system, possibly designed to track battery levels, that needs to recognize the new power source. Until this recognition occurs, the key fob might not fully engage with the vehicle’s systems. Even dealership staff may not be explicitly aware of this subtle quirk, potentially leading to unnecessary recommendations like buying a new fob or reprogramming.
If you’ve replaced your 2005 Jeep Grand Cherokee key fob battery and it’s not working, try this simple troubleshooting step: go to your vehicle and use the key fob to start the engine by pressing it directly against the start button. This action might be the key to activating your newly installed battery and restoring full key fob functionality. Before resorting to more costly solutions, this simple procedure is worth trying and could save you time and money.
