I program the fob and it will work until I walk more then 15 feet away from the car. Once I come back to unlock the car the fob acts like it wasn't programed. I start the car and it will work fine again until I walked away. I do not have to reprogram it to get it to work after it has been in the ignition. Any ideas??

recap.

program successful.
test fob successful.
walk away come back don't work.
put in ignition and then take it out of ignition will work fine. Until I walk away

thx