Suddenly, keyfobs don't work
Last Sunday I went to a store, left work fine. I got to the store, car wouldn't lock but went inside anyway because nobody can figure out how to open the door (slider) anyway. I came back out, key not found. It took maybe 10 minutes to manage to get the ignition to turn on and eventually start it. At some point it suggested I left the keyfob in the frunk when it was in my hand. With the car started and the keyfob at the cupholders, I started driving and the car suggested I check to see if a key was present. I made it home and parked it.
Fast forward to today. I changed batteries in my keyfob thinking that was it, same thing. I grabbed my spare, same thing. Checked voltage of batteries in both keyfobs 2.995 and 3.1v, transmitting should be no big deal. I again try to make it do anything, best I can get is the ignition to turn on if the keyfob is to the right of the start/stop button, sometimes. It still says key not found
Next logical step for me was disconnect the battery, so I did for about 5 minutes. When I connect power back, mirrors fold in and lights blink. I think, GREAT, fixed it. I use the keyfob to unlock the car and pop the door, fantastic. Go to start it, key not found. Try the keyfob to lock/unlock again, nothing.
What do I have going on here? I feel like the car needs the keyfobs programmed to the car again which I'm sure I can't do #becauseMcLaren or some module has gone bad which I also won't be able to program to the car.