Replaced battery in smart key for 2007 Infiniti G35 and now it doesn't work.

[krstnkrgr]

I replaced the battery, but it seems like I need to reprogram the smart key now. Can't find my owner's manual for the life of me. Using the valet port for now, but I need to fix this. The indicator in the dash says "no key". Help!

 

[smijus]

Silly question, but are you sure that you inserted the battery fully as well as right side up?