after reviewing this forum. it seems as if the infiniti G35 have a big issue with the programming of the remote.or fob.. I cant get both remotes to work 1 is brand new was working fine an the other came with the car was working fine...both batterys died so i replaced them NOW nothing cant get them to activate the car i did the steps correctly i just cant get them to signal to the car... i took to get them tested the remote pass the function test. something deffinitly wrong with infiniti . and i believe they should recall this problem. since everyone is having the same issue. if anyone figured this out let me know.

 

The Infiniti manual on page 3-9 says to have the + on the battery face bottom case. If that doesn't work they recommend going to the dealership....Gary