I joined this Forum for the specific purpose of finding a solution to our 2014 DJ unlocking itself and the horn chirping 3 time intermittently. I've determined what was causing this in our vehicle and can now make it do it anytime. As with others, our local Dodge Dealer could not recreate or solve this issue for us; and never any error codes. One person posted the possibility of some electronic devices interfering with the antenna. This got me to thinking, so I started to experiment. Turns out the culprit was our iPhones. I tried locking the DJ and walking away with the phone and FOB in the same hand. After several tries I was able to recreate the issue almost every time. Specifically, I had to hold the FOB over the face of the phone right over the "home" button. It happened in other configurations, but this was the most consistent. While holding the phone and FOB in this position, the signal from the FOB was completely blocked. I could neither lock or unlock the door using the handle button or the finger touch on the back of the handle.
My wife and I were so perplexed by this as it only happened every so often without an apparent pattern. My wife carries her iPhone in her purse along with her FOB. We figure the reason it was so intermittent was that the FOB was free to rattle around in the large compartment in her purse and seldom got in exactly the right position to block the signal. Also, when picking our son up from school she would often get out of the car leaving her purse in the car, but taking the FOB and her phone with her. Sometimes the FOB and phone would be in the same hand. We just never put two and two together until reading some of the other posts on this Forum. While we haven't tried to r-mecreate some of the other FOB issues we've read about (like vehicle not starting), but it's possible that if the FOB and phone were in just the right positions to each other, the signal might be blocked even inside the vehicle. It's worth noting that we are not sure what specific function of the phone is causing the blocked signal. It could be the GPS, built in battery, speakers, or just an electromagnetic field.
The good news is that now that we know what's causing our problem we can experiment with solutions to prevent the FOB from being in such close proximity to the phone. We haven't discussed this with our Dodge Dealer yet (it's been in 3 times for this), but unless they can adjust the sensitivity of the antennas in the vehicle, it sounds like we're going to have to solve this on our own. If you have this problem, let me know if this posting helped.
Thanks
