when do the spark plugs get replaced in a 2007 scion tc automatic? on 2007 Scion tC

i am looking to buy a 2007 scion tc automatic with 29,600 miles on it...when is and what is included in the 30,000 scheduled maintenance?

Asked by for the 2007 Scion tC
check manual
omg...r u serious,,,so much for quick online assistance...