OK Could it possibly have been the key fob? Wow! I do believe it was! Yes, I did change the batteries, but what I didn't do was to resync the thing after I put the batteries in it. I was reading the manual and it said that if the batteries were out more than 2 minutes (which they were) then you need to resync the key fob by pointing the fob at the car press the lock unlock button 2 times within 30 seconds and then start the car. Go figure the lights haven't flashed nor has it shirpped all day, and I hate to be negative but theres always tomorrow. I will keep you posted.