Scion tc wont start when hot but cold it starts

what fuel is it.

start with fuses, a blown fuse to system will keep it from starting

only cold air? check antifreeze level add if low.. also check vacuum controls for operation..god luck..

really mine does not have that only unlocks doors and panic button

check fuse # 1 7.5 amp fuse looking in front of left side the fuse is only one by its self, but radio has nothing to do with the starting of the car, that would be fuse #8 20 amp fuse

the condition of the battery and connections are the first thing to check.

check battery, and battery cables. then check alternator, then starter :) need detiailed help just ask :)

If it was mine and the dealer did not help I would renew the spark plugs making sure the plug is correct and the gap is perfect.I would also renew the fuel filter.
Wow that really sucks they dont help you.
Also I would go over their heads and report the problem to THE SCION PEOPLE. I think they might want to keep their image clean in todays auto market. Dont you.

thats cause that what the lock is for so it wont go down

yes its the same plugs but you wont have the steering weal control