Nicely done... Classic five spoke design... I like.

I'm suprised your low pressure light didnt' go on immediately. I'd check the bulb to make sure it's not burnt out.

These sensors have to be programmed for each car. It's like a keyless remote to unlock the doors, each one has a 'key' and has to be programmed for the car to recognize it.

Let us know if there was something 'special' done to pre-program these.