The most common cause of key fob not locking or unlocking the doors in Jeep Grand Cherokee is dead coin battery inside the key fob. But the remote control can also stop working due to worn buttons, poor battery contact, water damage, receiver module issues, signal interference, dead 12 volt battery, unpaired key requiring reprogramming, or Remote Control Key fob Fit for Jeep Grand Cherokee SUV 2008-2013/ Commander 2008-2012, 5 Button FCCID: M3N5WY783X (Set of 2) 65. $2399. Join Prime to buy this item at $21.59. FREE delivery Thu, Jan 4 on $35 of items shipped by Amazon. Simple steps to replace the battery in your Grand Cherokee's keyless entry remote. A small button cell battery installed in the your remote key fob. Remove any internal key first, and then try to pry apart the keyless entry remote. Accurately try to disassemble your fob with flat head screwdriver. Remove CR2032 battery with flat head screwdriver. HOW TO USE REMOTE START. Push and release the Remote Start button on the key fob twice within five seconds. The vehicle doors will lock, the parking lights will flash, and the horn will chirp twice (if programmed). Then, the engine will start, and the vehicle will remain in the Remote Start mode for a 15 minute cycle. For 2006-2016 Jeep Wrangler Keyless Entry Car Remote Key Fob 315Mhz. 9 Pics about For 2006-2016 Jeep Wrangler Keyless Entry Car Remote Key Fob 315Mhz : Jeep-Grand-Cherokee-Key-Fob-Battery-Replacement-Guide-009, For 2011-2014 Chrysler 200/2006-2016 Jeep Wrangler Key Remote Fob and also For 2011-2014 Chrysler 200/2006-2016 Jeep Wrangler Key Hoping for some updates. I have a 2014 Jeep Grand Cherokee. "Service Keyless System" appears on the dash. During the past week, it came up twice up until a few days ago when it came up every time I tried to start the car. Door locks work, passive entry works, and up until this morning I could only start the car with the key fob, remotely. Check and clean your FOB battery and connection points. My Challenger has done this before. I just poped it open and wiped the battery and used an eraser to clean the contact points. They don't seem to make a tight contatct so any little bit can cause it to not get the full voltage. Let Microbattery.com be your 1-stop shop for Key Fob battery replacements. We carry all models of common key fob batteries including the CR2032 battery, CR2025 battery, CR2016 battery, CR1620 Battery, CR1620 battery, and the VL2020 battery. AWaZlE.