Replacing the key fob battery in your 2007 Jeep Grand Cherokee should be a straightforward task. However, some owners encounter a perplexing issue: after installing a new battery, the key fob still doesn’t work. You might try multiple new batteries, only to find the old, weak battery miraculously brings the fob back to life – temporarily. This frustrating situation leaves many scratching their heads, questioning if they’ve done something wrong.
One Jeep owner experienced this exact scenario with their 2007 Grand Cherokee. After trying seven different batteries, none seemed to solve the problem. Each time, the old battery was reinserted, and the key fob would function again, albeit weakly. The solution, surprisingly, wasn’t a new battery at all, but a simple reset procedure. This owner discovered that the key fob only started working correctly after they went to their vehicle and used the “fob-on-start-button” method to start the ignition, the same method used when the key fob battery is completely dead.
This suggests a potential undocumented feature or process within the 2007 Jeep Grand Cherokee’s key fob system. It’s possible that the system tracks battery levels and doesn’t immediately recognize a new battery’s power. This might require a reset, triggered by physically using the fob to start the vehicle. Even dealership staff may not be fully aware of this quirk, potentially leading to unnecessary and costly solutions like new fobs or reprogramming.
Frustrated by the lack of readily available solutions, this owner highlights the common modern automotive experience of being pushed towards expensive dealer services for even simple maintenance tasks. While older Chrysler models had key fob batteries lasting for many years, newer models like the 2007 Jeep Grand Cherokee might see significantly shorter battery life, sometimes just one to two years. This could be due to features like remote start, which, while convenient, can contribute to quicker battery drain, even with infrequent use.
If you’re facing key fob issues after a 2007 Jeep Grand Cherokee Key Fob Battery Replacement, try this simple, unexpected fix: go to your vehicle and start it by pressing the key fob directly onto the ignition button. This might just reset the system and get your new battery working as it should, saving you time and potentially unnecessary expenses at the dealership.
