Third key programming problem
I decided to buy a switchblade key with a built in fob for my 2007 zx3. I got the key cut, and the remote programmed and everything worked perfectly. Then a little while later, I attempted to unlock the car with one of the original fob and it wouldn't unlock. The car had forgotten it. I have tried reprogramming them individually, and I have tried programming all 3 fobs at the same time. It always works temporarily, then forgets one or the other. Are there any solutions for my problem?