Key remote not working

Hello Pedro,

I went to the store a few days ago and upon returning to my car the remote would not unlock the doors or hatch/trunk. First thought was a dead remote battery. Upon returning home, I tried my second key, also a no go. So I checked batteries with a multi meter. Both at 3.4 volts but I changed the primary key battery anyway with a tested new battery. Still no results. All doors lock and unlock with the key, the alarm sets, and lock and hatch releases function normally.  Can you advise a possible fix?

Best regards,

Dennis offner