Join Date: Oct 2016
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I can confirm one way to make both key fobs stop working and how to fix it without taking it to the dealer. My 2015 came with 2 fobs and no valet key.
I ment to unlock the rear doors but hit the front unlock, realized I hit the wrong button and quickly hit the rear door unlock. This seemed to confuse the computer and both fobs would not lock or unlock the van. Had to use the key in door lock and the buttons inside to lock or unlock.radio and dash info all worked fine. A quarter was the best tool to remove the battery cover. I unbolted the ground strap from the battery by removing the 10mm nut. Ground terminal has what looks like a quick release latch like a removable bicycle axle but didn't seem to have enough room to flip it open and I had the 10mm socket handy. I left it unhooked for 15 minutes while I did some other work in the garage. Not sure it is needed but seemed like a good idea to let capacitors discharge if there are any that hold a charge. Reconnected the ground strap. Could hear solonoids and servos activating in the dash. Both key fobs working normally now. This also cleared the volatile memory for trip A and B and had to reset the clock time.
Doing this myself saved me the time and hassle of bring it to the dealer. Figured if it didn't fix it, then I would bring it in. YMMV, might not work for others who had issues,.
2015 3500 gas. High roof extended, RV-ish package. They do exist!