Replacing the battery in your 2017 Jeep Grand Cherokee key fob should be a straightforward task. However, you might encounter a frustrating situation where your key fob doesn’t work even after installing a new battery. Many owners have experienced this, finding that simply swapping the battery doesn’t restore the key fob’s functionality. You might try multiple new batteries, only to find the key fob stubbornly refusing to operate. Interestingly, the old, weak battery often works perfectly fine, highlighting a peculiar issue with new battery recognition.
The solution, surprisingly, might be simpler than you think. It turns out that for some 2017 Jeep Grand Cherokees, the key fob needs to be re-initialized after a battery replacement using a specific method. This involves going to your vehicle and starting it using the key fob pressed directly against the start button. This is the same procedure used when your key fob battery is completely dead. After performing this “fob-on-start-button” method, users have reported that all key fob functions return to normal.
This suggests that there might be an undocumented feature or process within the key fob or the vehicle itself that monitors battery levels. When a new battery is inserted, the system may not immediately recognize the change in power level. This can lead to the key fob appearing non-functional until this re-initialization step is performed. Even Jeep dealership staff might not be officially aware of this simple fix, potentially leading them to suggest more costly solutions.
Unfortunately, some dealerships might offer to sell you a new key fob, a new battery at an inflated price, or offer key fob reprogramming services, none of which may be necessary. These services are often not covered under warranty, adding to the frustration. This experience highlights a growing trend across manufacturers where basic maintenance can become unnecessarily complicated and expensive for customers. While older Chrysler vehicles had key fob batteries that lasted for many years, newer models like the 2017 Jeep Grand Cherokee may require more frequent battery changes, sometimes as often as every 1-2 years. While features like remote start might contribute to battery drain, even infrequent use of the key fob for locking and unlocking doors in newer models seems to result in shorter battery life compared to older vehicles.
If you encounter this issue with your 2017 Jeep Grand Cherokee key fob after a battery replacement, try the fob-on-start-button method before seeking professional help. It could save you time and unnecessary expenses.
