I have a few questions about programming a replacement key for a 2001 RX300. I was told that the vehicle memory can only store 3 transponder keys - does that include the valet key? The manual says it can store 4 keys - perhaps this means 1 valet and 3 master keys? If I delete all the keys from the car's memory except my current master key does that include deleting the valet key? Is the valet key reprogrammed the same way as the master keys?

Thanks.