2005 Prius will not start but smart key working

• • Good day all. My prius will not start. My smart key works because it unlocks and locks my 2005 prius. Also, my head lights, brake lights, emergency lights, dome lights all work. However my prius will not start. When I put the smart key in the key slot and press the brake pedal then press the power button, the prius will not start. Also, I notice the power button light does not come on almost like it does not sense the smart key at all. But like i have mentioned before the smart key unlocks/locks the car doors. I changed the battery on the smart key but the prius still will not start. Any advices are well appreciated.

 

I am not sure how this forum works but I have waiting for some type of moderation process to occur. Help please.