When i turn my key forward everything lights up, but when i turn to the start position nothing. New battery, alternator and starter. Confused can you help

Hello, have you verified that the shift lever is in the "Park" or "Neutral" position? if the electronics of the vehicle are not seeing park or neutral, the ignition system will not activate. That would be where I look first. Also, anti-theft key functionality prevails - are you using a known good key? Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops