Went to start the engine, got the "key fob not detected" warning. Tried back & forth with buttons to lock & unlock the doors, got response and now the vehicle started with no problem or warning. Drove it around a while, all functions seemed to start working, however the 2nd fob was still stuck in limbo. Continues to try the 2nd fob, was finally Take your car to AutoZone. They'll scan the code and show you what it is. Exactly. AutoZone will scan it and show you the code and what it means. Haha that’s the point. They’ll help. They’re taking advantage of you. Ok but for real, a key fob battery isn't even 10 bucks. Change it and see if the problem goes away. Asked by moroz_2016 Mar 05, 2017 at 09:11 PM about the 2016 Jeep Grand Cherokee Overland 4WD. Question type: Maintenance & Repair Key Fob Keyless Entry Remote Compatible with 2008-2016 Dodge Ram Truck Pickup 1500 2500 3500 Journey Challenger Grand Caravan Grand Cherokee Commander Chrysler, Car Key IYZ-C01C M3N5WY783X dummy OEM Electronic 4-Button FOBIK Key Fob Remote Compatible with 2013-2022 RAM Truck (FCC ID: GQ4-53T, P/N: 56046955, 68508721) Key fob malfunction. Unfortunately key fobs are a bit more complex than a good old-fashioned key. If the battery isn't the culprit, you'll need to take the fob to your dealer to get it diagnosed. people are gonna prolly tell you to go to the dealership or order something online or do it alone but here is the real rundown. 1. If you go to the dealership, they will charge you around 300 $ or more for this service. 2. If you wanna do it alone, you need a specific tool which can be very pricy (several $$$ ) and also you will need a code Step 5. After turning the key to the ‘on’ position, pressing the lock button, and turning the key back to the ‘off’ position 3 times, you should hear the locking sound. This means that your key fob has been programmed and you can start using it again. Press down lightly on the top of the screwdriver to force the two key fob segments apart at the seam. Make sure you don’t use a twisting action – this could damage the plastic. Remove the old battery from its housing. Insert the new CR2032 battery, making sure the negative side is down. Put the circuit board into the keypad, then put the Save Big Money On 2006 Jeep Grand Cherokee Replacement Key Fobs! | Free Shipping | Free Programming Instructions | Unmatched Support: 402-964-2720 Key Fob Battery Press the Unlock button, and verify the Jeep Grand Cherokee doors unlock. Next, press Lock, and confirm the doors lock. If the key fob is successfully activating the locks, then the programming worked! In the event the fob isn’t working, just redo steps 2 and 3. It can take a try or two to get the sync right. IuHGzl7.