Hey how are you
1- that valet key supposed to be programed to vehicle, ?
2-is there a security light on dash flashing or a lock symbol with key in it ?
3-we need fuel & spark to start , but if the anti theft or the key fob not recognized ( like valet in this case ) it will turn over but want allow fuel to engine .
4-Lets try this First and we can go from there , lets see if we can reset it ,if not you will need a factory scanner to retrieve fault codes and see why it is not starting
Master reset Procedure
1- Disconnect Battery Cables ( Negative & Positive Cables )you can use any electrical wire as an extension if battery cables don't reach .
2- Hold cables Together for 60 secs ,then let go
3- Wait 15 minutes
4- Make sure all doors are closed
5- Reconnect battery Cables
6- Lock & unlock the vehicles using the key from driver door side (if you have a key fob with no blade key, just lock & unlock using the key fob buttons)
7- Enter the vehicle and attempt to start
Please let me know
ASE Certified Technician