Hi, for a while now, I've been having issues with the passive entry system. 2 times out of 5, when I grab the handle on my 2011 300C 5.7 Hemi, the doors won't unlock. It happens on both front doors! I've seen the dealer back in Nov 2013 with this and was told that the remote's battery needed to be replaced because it was too weak! They did that on both remotes! It worked for a while and now it started again in March 2014 (4 months). I was surprised that the battery didn't last longer than that so I tried using the second remote for a day or 2 and it did it again! I replaced the battery again and still the same, works 2-3 times out of 5. I take out the remote and press the unlock button on the remote and the doors unlock! Any suggestions?