First open the fob and remove and replace the battery to rule out it not making good contact. I've had the same behavior with a battery that wasn't dead but needed to be moved around.
Anything else in your pocket? The ELR fob seens much more sensitive than my 2015 volt fob to interference. USB sticks and a set of keys seem to bother it. I put my key in the watch pocket of my pants, or in a cargo pocket now. Never have a problem.
Also be wary of the windows down by holding unlock. I've had it put my windows down a few times now for no reason, once in the snow/rain... and there is no way to remotely roll them back up. I had to run the heater for 2 hours and then the AC for an hour to dry out the car.
Anything else in your pocket? The ELR fob seens much more sensitive than my 2015 volt fob to interference. USB sticks and a set of keys seem to bother it. I put my key in the watch pocket of my pants, or in a cargo pocket now. Never have a problem.
Also be wary of the windows down by holding unlock. I've had it put my windows down a few times now for no reason, once in the snow/rain... and there is no way to remotely roll them back up. I had to run the heater for 2 hours and then the AC for an hour to dry out the car.