I just bought a GS400 and it only comes with one master key. It will start the car but remote entry didn't work. I tried several time and I can make the car into programming mode. But no matter what I tried, I just can't program remote into the key. I did bought a second key from ebay, and I can program both engine start and remote without a problem.

Are there different types of key remotes that is causing the issue for programming?
Please Help!!

Thanks